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iOS

Mobile operating system by Apple

This article is about the mobile operating system developed by Apple. For the router/switch OS developed by Cisco Systems, see Cisco IOS. For other uses, see IOS (disambiguation).

Not to be confused with iPadOS.

For the Greek island, see Ios.

The word "iOS" in black San Francisco neo-grotesque sans-serif font.

Commercial logo as used by Apple, since 2017

DeveloperApple Inc.
Written inC, C++, Objective-C, Swift, assembly language
OS familyUnix-like, based on Darwin (BSD), macOS
Working stateCurrent
Source modelClosed, with open-source components
Initial releaseJune 29, 2007; 14 years ago (2007-06-29)
Latest release15.1[1] (19B74)[2] (October 25, 2021; 24 days ago (2021-10-25)) [±]
Latest preview15.2 beta 3[3] (19C5044b)[4] (November 16, 2021; 2 days ago (2021-11-16)) [±]
Marketing targetSmartphones, tablet computers, portable media players
Available in40 languages[5][6][7][8]
Update methodOTA(since iOS 5), Finder (from macOS Catalina onwards)[9] or iTunes (Windows and macOS pre-Catalina)
Platforms
Kernel typeHybrid (XNU)
Default
user interface
Cocoa Touch (multi-touch, GUI)
LicenseProprietary software except for open-source components
Preceded byNewton OS
Official websitewww.apple.com/ios/
Supported
iOS version history

iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone and iPod Touch; the term also included the versions running on iPads until the name iPadOS was introduced with version 13 in 2019. It is the world's second-most widely installed mobile operating system, after Android. It is the basis for three other operating systems made by Apple: iPadOS, tvOS, and watchOS. It is proprietary software, although some parts of it are open source under the Apple Public Source License and other licenses.[10]

Unveiled in 2007 for the first-generation iPhone, iOS has since been extended to support other Apple devices such as the iPod Touch (September 2007) and the iPad (introduced: January 2010; availability: April 2010.) As of March 2018[update], Apple's App Store contains more than 2.1 million iOS applications, 1 million of which are native for iPads.[11] These mobile apps have collectively been downloaded more than 130 billion times.

Major versions of iOS are released annually. The current stable version, iOS 15, was released to the public on September 20, 2021.[12]

History

See also: iOS version history

First iOS logotype (2010–2013), using Myriad Pro Semibold font

Second iOS logotype (2013–2017), using Myriad Pro Light font

Third iOS logotype (2017–present), using San Francisco Semibold font

In 2005, when Steve Jobs began planning the iPhone, he had a choice to either "shrink the Mac, which would be an epic feat of engineering, or enlarge the iPod". Jobs favored the former approach but pitted the Macintosh and iPod teams, led by Scott Forstall and Xfer Records: LFO Tool 2021 Crack Free Download [Latest Copy Is Here] Fadell, respectively, against each other in an internal competition, with Forstall winning by creating the iPhone OS. The decision enabled the success of the iPhone as a platform for third-party developers: using a well-known desktop operating system as its basis allowed the many third-party Mac developers to write software for the iPhone with minimal retraining. Forstall was also responsible for creating a software development kit for programmers to build iPhone apps, as well as an App Store within iTunes.[13][14]

The operating system was unveiled with the iPhone at the Macworld Conference & Expo on January 9, 2007, and released in June of that year.[15][16][17] At the time of its unveiling in January, Steve Jobs claimed: "iPhone runs OS X" and runs "desktop class applications",[18][19] but at the time of the iPhone's release, the operating system was renamed "iPhone OS".[20] Initially, third-party native applications were not supported. Jobs' reasoning was that developers could build web applications through the Safari web browser that "would behave like native apps on the iPhone".[21][22] In October 2007, Apple announced that a native Software Development Kit (SDK) was under development and that they planned to put it "in developers' hands in February".[23][24][25] On March 6, 2008, Apple held a press event, announcing the iPhone SDK.[26][27]

The iOS App Store was opened on July 10, 2008, with an initial 500 applications available.[28] This quickly grew to 3,000 in September 2008,[29] 15,000 in January 2009,[30] 50,000 in June 2009,[31] 100,000 in November 2009,[32][33] 250,000 in August 2010,[34][35] 650,000 in July 2012,[36] 1 million in October 2013,[37][38] 2 million in June 2016,[39][40][41] and 2.2 million in January 2017.[42][43] As of March 2016[update], 1 million apps are natively compatible with the iPad tablet computer.[44] These apps have collectively been downloaded more than 130 billion times.[39] App intelligence firm Sensor Tower has estimated that the App Store will reach 5 million apps by the year 2020.[45]

In September 2007, Apple announced swiftshader 4.0 free download iPod Touch, a redesigned iPod based on the iPhone form factor.[46] On January 27, 2010, Apple introduced their much-anticipated media tablet, the iPad, featuring a larger screen than the iPhone and iPod Touch, and designed for web browsing, media consumption, and reading, and offering multi-touch interaction with multimedia formats including newspapers, e-books, photos, videos, music, word processing documents, video games, and most existing iPhone apps using a 9.7-inch screen.[47][48][49] It also includes a mobile version of Safari for web browsing, as well as access to the App Store, iTunes Library, iBookstore, Contacts, and Notes. Content is downloadable via Wi-Fi and optional 3G service or synced through the user's computer.[50]AT&T was initially the sole U.S. provider of 3G wireless access for the iPad.[51]

In June 2010, Apple rebranded iPhone OS as "iOS". The trademark "IOS" had been used by Cisco for over a decade for its operating system, IOS, used on its routers. To avoid any potential lawsuit, Apple licensed the "IOS" trademark from Cisco.[52]

The Apple Watchsmartwatch was announced by Tim Cook on September 9, 2014, being introduced as a product with health and fitness-tracking.[53][54] It was released on April 24, 2015.[55][56][57] It uses watchOS as operative system, which is based on IOS.

On November 22, 2016, a five-second video file originally named "IMG_0942.MP4" started crashing iOS on an increasing count of devices, forcing users to reboot. It gained massive popularity through social media channels and messaging services.[58][59]

In October 2016, Apple opened its first iOS Developer Academy in Naples inside University of Naples Federico II's new campus.[60][61] The course is completely free, aimed at acquiring specific technical skills on the creation and management of applications for the Apple ecosystem platforms.[62] At the Academy there are also issues of business administration (business planning and business management with a focus on tenorshare com es iphone - Activators Patch opportunities) and there is a path dedicated to the design of graphical interfaces. Students have the opportunity to participate in the "Enterprise Track", an in-depth training experience on the entire life cycle of an app, from design to implementation, to security, troubleshooting, data storage and cloud usage.[63][64] As of 2020, the Academy graduated almost a thousand students from all over the world, who have worked unhackme registration code free - Free Activators 400 app ideas and have already published about 50 apps on the iOS App Store. In the 2018/2019 academic year, students from more than 30 different countries arrived. 35 of these have been selected to attend the Worldwide Developer Conference, the annual Apple Developer Conference held annually in California in early June.[65][66]

Steve Jobs, Apple's then CEO, introducing the iPad.

On June 3, 2019, iPadOS, the branded version of iOS for iPad, was announced at the 2019 WWDC; it was launched on September 25, 2019.[67]

Features

Interface

The iOS user interface is based upon direct manipulation, using multi-touch gestures such as swipe, tap, pinch, and reverse pinch. Interface control elements include sliders, switches, and buttons.[68] Internal accelerometers are used by some applications to respond to shaking the device (one common result is the undo command) or rotating it in three dimensions (one common result is switching between portrait and landscape mode). Various accessibility described in § Accessibility functions enable users with vision and hearing disabilities to properly use iOS.[69]

iOS devices boot to the homescreen, the primary navigation and information "hub" on iOS devices, analogous to the desktop found on personal computers. iOS homescreens are typically made up of app icons and widgets; app icons launch the associated app, whereas widgets display live, auto-updating content, such as a weather forecast, the user's email inbox, or a news ticker directly on the homescreen.[70]

Along the top of the screen is a status bar, showing information about the device and its connectivity. The status bar itself contains two elements, the Control Center and the Notification Center. The Control Center can be "pulled" down from the top right of the notch, on the new iPhones, giving access to various toggles to manage the device more quickly without having to open the Settings. It is possible to manage brightness, volume, wireless connections, music player, etc.[71]

Instead, scrolling from the top left to the bottom will open the Notification Center, which in the latest versions of iOS is very similar to the lockscreen. It displays notifications in chronological order and groups them by application. From the notifications of some apps it is possible to interact directly, for example by replying a message directly from it. Notifications are sent in two modes, the important notifications that are displayed on the lock screen and signaled by a distinctive sound, accompanied by a warning banner and the app badge icon, and the secondary mode where they are displayed in the Notification Center, but they are not shown on the lock screen, nor are they indicated by warning banners, badge icons or sounds.[72][73]

It is possible to choose if notifications from an app can be shown on the lock screen, Notification Center, banner, or all three; whether the banner should be temporary or permanent; activate or deactivate the sound; choose whether to group by app or not and whether to show previews when locked. It is possible to turn off unwanted app notifications. Older notifications are automatically deleted after a few days.

A homescreen may be made up of several pages, between which the user can swipe back and forth, one of the ways to do this is to hold down on the "dots" shown on each page and swipe left or right.

To the right of the last page, the App Library lists and categorizes apps installed on the device. Apps within each category are arranged based on the frequency of their usage. In addition to a category for suggested apps, a "recent" category lists apps recently installed alongside App Clips recently accessed. Users can search for the app they want or browse them in alphabetical order.

iOS also integrates seamlessly with other programming frameworks and technologies, such as Apple Pay, HomeKit, HealthKit, and ResearchKit.

On iOS, the main page button is usually located at the top right. To go back in an application there is almost always a "back" button.

You can go back in 4 different ways, it varies depending on tipard video downloader - Free Activators context.

  1. Press the "Back" button at the top left of the display
  2. Swipe right from the left edge of the screen (gesture)
  3. Press the "Finish" action at the top right of the screen
  4. Scroll down on the screen content

The page title is practically always present and very visible, but it shrinks as the user scrolls down.

Navigation destinations that cannot be contained in the bottom tab bar can: be moved to a generic "More" tab or appear as actions in the top left or top right of other destinations.

Modal views are single-screen activities that are displayed by swiping into the foreground, while allowing the previous screen to peek up, retreating into the background. You can ignore them by scrolling down or tapping "Back" at the top.

Full screen views are media content such as photos or videos that take up the entire screen. They disappear on scrolling down.

Occasionally on iOS, important page actions appear on a lower toolbar.

Action menus can be activated by any button or by attempting to perform any action. They scroll from bottom to top.

On earlier iPhones with home button, screenshots can be created with the simultaneous press of the home and power buttons. In comparison to Android OS, which requires the buttons to be held down, a short press does suffice on iOS.[74] On the more recent iPhones which lack a physical home button, screenshots are captured using the volume-down and power buttons instead.[75]

The camera application used a skeuomorphistic closing camera shutter animation prior to iOS 7. Since then, it uses a simple short blackout effect.[76] Notable additions over time include HDR photography and the option to save both normal and high dynamic range photographs simultaneously where the former prevents ghosting effects from moving objects (since iPhone 5, iOS 6), automatic HDR adjustment (iOS 7.1), "live photo" with short video bundled to each photo if enabled (iPhone 6s, iOS 9), and a digital zoom shortcut (iPhone 7 Plus, iOS 10).[77][78][79] Some camera settings such as video resolution and frame rate are not adjustable through the camera interface itself, but are outsourced to the system settings.[80]

A new feature in iOS 13 called "context menus" shows related actions when you touch and hold an item. When the context menu is displayed, the background is blurred.[81]

To choose from a few options, a selection control is used. Selectors can appear anchored at the bottom or in line with the content (called date selectors). Date selectors take on the appearance of any other selection control, but with a column for day, month, and optionally year.

Alerts appear in the center of the screen, but there are also alerts that scroll up from the bottom of the screen (called "action panels"). Destructive actions (such as eliminating any element) are colored red.

The official font of iOS is San Francisco. It is designed for small text readability, and is used throughout the operating system, including third-party apps.[81]

The icons are 180x180px in size for iPhones with a larger screen, usually models over 6 inches, including iPhone 11 Pro and iPhone 8 Plus, while it's 120x120px on iPhones with smaller displays.[82]

Apple's official design language is called Human Interface.[83]

Applications

See also: App Store (iOS) and .ipa

iOS devices come with preinstalled apps developed by Apple including Mail, Maps, TV, Music, FaceTime, Wallet, Health, and many more.

Applications ("apps") are the most general form of application software that can be installed on iOS. They are downloaded from the official catalog of the App Store digital store, where apps are subjected to security checks before being made available to users. In June 2017, Apple updated its guidelines to specify that app developers will no longer have the ability to use custom prompts for encouraging users to leave reviews for their apps.[84][85] IOS applications can also be installed directly from an IPA file provided by the software distributor, via unofficial ways. They are written using iOS Software Development Kit (SDK) and, often, combined with Tenorshare com es iphone - Activators Patch, using officially supported programming languages, including Swift and Objective-C. Other companies have also created tools that allow for the development of native iOS apps using their respective programming languages.

Applications for iOS are mostly built using components of UIKit, a programming framework. It allows applications to have a consistent look and feel with the OS, nevertheless offering customization.

Elements automatically update along with iOS updates, automatically including new interface rules. UIKit elements are very adaptable, this allows developers to design a single app that looks the same on any iOS device. In addition to defining the iOS interface, UIKit defines the functionality of the application.

At first, Apple did not intend to release an SDK to developers, because they did not want third-party apps to be developed for iOS, building web apps instead. However, this technology never entered into common use, this led Apple to change its opinion, so in October 2007 the SDK for developers was announced, finally released on March 6, 2008.

The SDK includes an inclusive set of development tools,[86] including an audio mixer and an iPhone simulator. It is a free download for Mac users. It is not available for Microsoft Windows PCs. To test the application, get technical support, and distribute applications through App Store, developers are required to subscribe to the Apple Developer Program.

Over the years, the Apple Store apps surpassed multiple major milestones, including 50,000,[87] 100,000,[88] 250,000,[89] 500,000,[90] 1 million,[91] and 2 million apps.[92] The billionth application was installed on April 24, 2009.[93]

Home screen

Main article: SpringBoard

The home screen, rendered by SpringBoard, displays application icons and a dock at the bottom where users can pin their most frequently used apps. The home screen appears whenever the user unlocks the device or presses the physical "Home" button while in another app.[94] Before iOS 4 on the iPhone 3GS (or later), the screen's background could be customized only through jailbreaking, but can now be changed out-of-the-box. The screen has a status bar across the top to display data, such as time, battery level, and signal strength. The rest of the screen is devoted to the current application. When a passcode is set and a user switches on the device, the passcode must be entered at the Lock Screen before access to the Home screen is granted.[95]

In iPhone OS 3, Spotlight was introduced, allowing users to search media, apps, emails, contacts, messages, reminders, calendar events, and similar content. In iOS 7 and later, Spotlight is accessed by pulling down anywhere on the home screen (except for the top and bottom edges that open Notification Center and Control Center).[96][97] In iOS 9, there are two ways to access Spotlight. As with iOS 7 and 8, pulling down on any homescreen will show Spotlight. However, it can also be accessed as it was in iOS 3 – 6. This endows Spotlight with Siri suggestions, which include app suggestions, contact suggestions and news.[98] In iOS 10, Spotlight is at the top of the now-dedicated "Today" panel.[99]

Since iOS 3.2, users are able to set a background image for the Home Screen. This feature is only available on third-generation tenorshare com es iphone - Activators Patch 3GS, third-generation iPod touch (iOS 4.0 or newer), and all iPad models (since iOS 3.2)—or newer.

iOS 7 introduced a parallax effect on the Home Screen, which shifts the device's wallpaper and icons in response to the movement of the device, creating a 3D effect and an illusion of floating icons. This effect is also visible in the tab view of Mail and Safari.[100]

Researchers found that users organize icons on their homescreens based on usage frequency and relatedness of the applications, as well as for reasons of usability and aesthetics.[101]

System font

iOS originally used Helvetica as the system font. Apple switched to Helvetica Neue exclusively for the iPhone 4 and its Retina Display, and retained Helvetica as the system font for older iPhone devices on iOS 4.[102] With iOS 7, Apple announced that they would change the system font to Helvetica Neue Light, a decision that sparked criticism for inappropriate usage of a light, thin typeface for low-resolution mobile screens. Apple eventually chose Helvetica Neue instead.[103][104] The release of iOS 7 also introduced the ability to scale text or apply other forms of text accessibility changes through Settings.[105][106] With iOS 9, Apple changed the font to San Francisco, an Apple-designed font aimed at maximum legibility and font consistency across its product lineup.[107][108]

Folders

iOS 4 introduced folders, which can be created by dragging an application on top of another, and from then on, more items can be added to the folder using the same procedure. A title for the folder is automatically selected by the category of applications inside, but the name can also be edited by the user.[109] When apps inside folders receive notification badges, the individual numbers of notifications are added up and the total number is displayed as a notification badge on the folder itself.[109] Originally, folders on an iPhone could include up to 12 apps, while folders on iPad could include 20.[110] With increasing display sizes on newer iPhone hardware, iOS 7 updated the folders with pages similar to the home screen layout, allowing for a significant expansion of folder functionality. Each page of a folder can contain up to nine apps, and there can be 15 pages in total, allowing for a total of 135 apps in a single folder.[111] In iOS 9, Apple updated folder sizes for iPad hardware, allowing for 16 apps per page, still at 15 pages maximum, increasing the total to 240 apps.[112]

Notification Center

Main article: Notification Center

Before iOS 5, notifications were delivered in a modal window and couldn't be viewed after being dismissed. In iOS 5, Apple introduced Notification Center, which allows users to view a history of notifications. The user can tap a notification to open its corresponding app, or clear it.[113] Notifications are now delivered in banners that appear briefly at the top of the screen. If a user taps a received notification, the application that sent the notification will be opened. Users can also choose to view notifications in modal alert windows by adjusting the application's notification settings. Introduced with iOS 8, widgets are now accessible through the Notification Center, defined by 3rd parties.

When an app sends a notification while closed, a red badge appears on its icon. This badge tells the user, at a glance, how many notifications that app has sent. Opening the app clears the badge.

Accessibility

iOS offers various accessibility features to help users with vision and hearing disabilities. One major feature, VoiceOver, provides a voice reading information on the screen, including contextual buttons, icons, links and other user interface elements, and allows the user to navigate the operating system through gestures. Any apps with default controls and developed with a UIKit framework gets VoiceOver functionality built in.[114] One example includes holding up the iPhone to take a photo, with VoiceOver describing the photo scenery.[115] As part of a "Made for iPhone" program, introduced with the release of iOS 7 in 2013, Apple has developed technology to use Bluetooth and a special technology protocol to let compatible third-party equipment connect with iPhones and iPads for streaming audio directly to a user's ears. Additional customization available for Made for iPhone products include battery tracking and adjustable sound settings for different environments.[116][117] Apple made further efforts for accessibility for the release of iOS 10 in 2016, adding a new pronunciation editor to VoiceOver, adding a Magnifier setting to enlarge objects through the device's camera, software TTY support for deaf people to make phone calls from the iPhone, and giving tutorials and guidelines for third-party developers to incorporate proper accessibility functions into their apps.[118]

In 2012, Liat Kornowski from The Atlantic wrote that "the iPhone has turned out to be one of the most revolutionary developments since the invention of Braille",[119] and in 2016, Steven Aquino of TechCrunch described Apple as "leading the way in assistive technology", with Sarah Herrlinger, Senior Manager for Global Accessibility Policy and Initiatives at Apple, stating that "We see tenorshare com es iphone - Activators Patch as a basic human right. Building into the core of our products supports a vision of an inclusive world where opportunity and access to information are barrier-free, empowering individuals with disabilities to achieve their goals".[120]

Criticism has been aimed at iOS depending on both internet connection (either WiFi or through iTunes) and a working SIM card upon first activation.[121] This restriction has been loosened in iOS 12, which no longer requires the latter.[122]

Multitasking

Multitasking for iOS was first released in June 2010 along with the release of iOS 4.[123][124] Only certain devices—iPhone 4, iPhone 3GS, and iPod Touch 3rd generation—were able to multitask.[125] The iPad did not get multitasking until iOS 4.2.1 in that November.[126]

The implementation of multitasking in iOS has been criticized for its approach, which limits the work that applications in the background can perform to a limited function set and requires application developers to add explicit support for it.[125][127]

Before iOS 4, multitasking was limited to a selection of the applications Apple included on the device. Users could however "jailbreak" their device in order to unofficially multitask.[128] Starting with iOS 4, on third-generation and newer iOS devices, multitasking is supported through seven background APIs:[129]

  1. Background audio – application continues to run in the background as long as it is playing audio or video content[130]
  2. Voice over IP – application is suspended when a phone call is not in progress[130]
  3. Background location – application is notified of location changes[130]
  4. Push notifications
  5. Local notifications – application schedules local notifications to be delivered at a predetermined time[130]
  6. Task completion – application asks the system for extra time to complete a given task[130]
  7. Fast app switching – application does not execute any code and may be removed from memory at any time[130]

In iOS 5, three new background APIs were introduced:

  1. Newsstand – application can download content in the background to be ready for the user[130]
  2. External Accessory – application communicates with an external accessory and shares data at regular intervals[130]
  3. Bluetooth Accessory – application communicates with a bluetooth accessory and shares data at regular intervals[130]

In iOS 7, Apple introduced a new multitasking feature, providing all apps with the ability to perform background updates. This feature prefers to update the user's most frequently used apps and prefers to use Wi-Fi networks over a cellular network, without markedly reducing the device's battery life.

Switching applications

In iOS 4.0 to iOS 6.x, double-clicking the home button activates the application switcher. A scrollable dock-style interface appears from the bottom, moving the contents of the screen up. Choosing an icon switches to an application. To the far left are icons which function as music controls, a rotation lock, and on iOS 4.2 and above, a volume controller.

With the introduction of iOS 7, double-clicking the home button also activates the application switcher. However, unlike previous versions it displays screenshots of open applications on top of the icon and horizontal scrolling allows for browsing through previous apps, and it is possible to close applications by dragging them up, similar to how WebOS handled multiple cards.[131]

With the introduction of iOS 9, the application switcher received a significant visual change; while still retaining the card metaphor introduced in iOS 7, the application icon is smaller, and appears above the screenshot (which is now larger, due to the removal of "Recent and Favorite Contacts"), and each application "card" overlaps the other, forming a rolodex effect as the user scrolls. Now, instead of the home screen appearing at the leftmost of the application switcher, it appears rightmost.[132] In iOS 11, the application switcher receives a major redesign. In the iPad, the Control Center and app switcher are combined. The app switcher in the iPad can also be accessed by swiping up from the bottom. In the iPhone, the app switcher cannot be accessed if there are no apps in the RAM.

Ending tasks

In iOS 4.0 to iOS 6.x, briefly holding the icons in the application switcher makes them "jiggle" (similarly to the homescreen) and allows the user to force quit the applications by tapping the red minus circle that appears at the corner of the app's icon.[133] Clearing applications from multitasking stayed the same from iOS 4.0 through 6.1.6, the last version of iOS 6.

As of iOS 7, the process has become faster and easier. In iOS 7, instead of holding the icons to close them, they are closed by simply swiping them upwards off the screen. Up to three apps can be cleared at a time compared to one in versions up to iOS 6.1.6.[134]

Task completion

Task completion allows apps to continue a certain task after the app has been suspended.[135][136] As of iOS 4.0, apps can request up to ten minutes to complete a task in the background.[137] This doesn't extend to background up- and downloads though (e.g. if a user starts a download in one application, it won't finish if they switch away from the application).

Siri

Main article: Siri

Siri () is an intelligent personal assistant integrated into iOS. The assistant uses voice queries and a natural language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Internet services. The software adapts to users' individual language usages, searches, and preferences, with continuing use. Returned results are individualized.

Originally released as an app for iOS in February 2010,[138] it was acquired by Apple two months later,[139][140][141] and then integrated into iPhone 4S at its release in October 2011.[142][143] At that time, the separate app was also removed from the iOS App Store.[144]

Siri supports a wide range of user commands, including performing phone actions, checking basic information, scheduling events and reminders, handling device settings, searching the Internet, navigating areas, finding information on entertainment, and is able to engage with iOS-integrated apps.[145] With the release of iOS 10 in 2016, Apple opened up limited third-party access to Siri, including third-party messaging apps, as well as payments, ride-sharing, and Internet calling apps.[146][147] With the release of iOS 11, Apple updated Siri's voices for more clear, human voices, it now supports follow-up questions and language translation, and additional third-party actions.[148][149]

Game Center

Main article: Game Center

Game Center is an onlinemultiplayer "social gaming network"[150] released by Apple.[151] It allows users to "invite friends to play a game, start a multiplayer game through matchmaking, track their achievements, and compare their high scores on a leaderboard." iOS 5 and above adds support for profile photos.[150]

Game Center was announced during an iOS 4 preview event hosted by Apple on April 8, 2010. A preview was released to registered Apple developers in August.[150] It was released on September 8, 2010, with iOS 4.1 on iPhone 4, iPhone 3GS, and iPod Touch 2nd generation through 4th generation.[152] Game Center made its public debut on the iPad with iOS 4.2.1.[153] There is no support for the iPhone 3G, original iPhone and the first-generation iPod Touch (the latter two devices did not have Game Center because they did not get iOS 4).[154] However, Game Center is unofficially available on the iPhone 3G via a hack.[155]

Hardware

The main hardware platform for iOS is the ARM architecture (the ARMv7, ARMv8-A, ARMv8.2-A, ARMv8.3-A). iOS releases before iOS 7 can only be run on iOS devices with 32-bit ARM processors (ARMv6 and ARMv7-A architectures). In 2013, iOS 7 was released with full 64-bit support (which includes a native 64-bit kernel, libraries, drivers as well as all built-in applications),[156] after Apple announced that they were switching to 64-bit ARMv8-A processors with the introduction of the Apple A7 chip.[157] 64-bit support was also enforced for all apps in the App Store; All new apps submitted to the App Store with a deadline of February 2015, and all app updates submitted to the App Store with a deadline of June 1, 2015.[158]iOS 11 drops support for all iOS devices with 32-bit ARM processors as well as 32-bit applications,[159][160] making iOS 64-bit only.[161]

Development

Main article: iOS SDK

The iOS SDK (Software Development Kit) allows for the development of mobile apps on iOS.

While originally developing iPhone prior to its unveiling in 2007, Apple's then-CEOSteve Jobs did not intend to let third-party developers build native apps for iOS, instead directing them to make web applications for the Safari web browser.[162] However, backlash from developers prompted the company to reconsider,[162] with Jobs announcing in October 2007 that Apple would have a software development kit available for developers by February 2008.[163][164] The SDK was released on March 6, 2008.[165][166]

The SDK is a free download for users of Mac personal computers.[167] It is not available for Microsoft Windows PCs.[167] The SDK contains sets giving developers access to various functions and services of iOS devices, such as hardware and software attributes.[168] It also contains an iPhone simulator to mimic the look and feel of the device on the computer while developing.[168] New versions of the SDK accompany new versions of iOS.[169][170] In order to test applications, get technical support, and distribute apps through App Store, developers are required to subscribe to the Apple Developer Program.[167]

Combined with Xcode, the iOS SDK helps developers write iOS apps using officially supported programming languages, including Swift and Objective-C.[171] Other companies have also created tools that allow for the development of native iOS apps using their respective programming languages.[172][173]

Update schedule

Main article: iOS version history

Apple provides major updates to the iOS operating system annually via iTunes and since iOS 5, also over-the-air.[175] The device checks an XML-based PLIST file on mesu.apple.com for updates. The updates are delivered in plain unencrypted ZIP files. On all recent iOS devices, iOS regularly checks on the availability of an update, and if one is available, will prompt the user to permit its automatic installation.

The latest stable version is iOS 14, released on September 16, 2020. It is available for iPhone 6S and later, and the seventh-generation iPod Touch.[176] In addition to the release of iOS 14, iPadOS 14 was released alongside iOS 14. Apple debuted iOS 14 and iPadOS 14 at its annual WWDC keynote on June 22, 2020.[177] iPadOS 14 is available on iPad Air 2 and later, iPad fifth-generation and later, iPad mini 4 and later and all versions of the iPad Pro.[178] The update introduced new features such as improved home screen widgets, the App Library, App Clips, and more.[179]

Originally, iPod Touch users had to pay for system software updates. This was due to accounting rules that designated it not a "subscription device" like iPhone or Apple TV, and improvements to the device required payments.[180][181] The requirement to pay to upgrade caused iPod Touch owners to stay away from updates.[182] However, in September 2009, a change in accounting rules won tentative approval, affecting Apple's earnings and stock price, and allowing iPod Touch updates to be delivered for free.[183][184]

Apple has significantly extended the cycle of updates for iOS supported devices over the years. The iPhone (1st generation) and iPhone 3G only received two iOS updates, while later models had support for five, six, and seven years.[185][186]

XNU kernel

The iOS kernel is the XNU kernel of Darwin. The original iPhone OS (1.0) up to iPhone OS 3.1.3 used Darwin 9.0.0d1. iOS 4 was based on Darwin 10. iOS 5 was based on Darwin 11. iOS 6 was based on Darwin 13. iOS 7 and iOS 8 are based on Darwin 14. iOS 9 is based on Darwin 15. iOS 10 is based on Darwin 16. iOS 11 is based on Darwin 17. iOS 12 is based on Darwin 18. iOS 13 is based on Darwin 19.[187]

In iOS 6 the kernel is subject to ASLR, similar to that of OS X Mountain Lion. This makes exploit possibilities more complex since it is not possible to know the location of kernel code.

Since XNU is based on the BSD kernel, it is open source.[188] The source is under a 3-clause[189] BSD license for the original BSD parts, with parts added by Apple under the Apple Public Source License.[190] The versions contained in iOS are not available; only the versions used in macOS are available.

iOS does not have kernel extensions (kexts) in the file system, even if they are actually present. The kernel cache can be decompressed to show the correct kernel, along with the kexts (all packed in the __PRELINK_TEXT section) and their plists (in the __PRELINK_INFO section).

The kernel cache can also be directly decompressed (if decrypted) using third-party tools. With the advent of iOS 10 betas and default plain text kernelcaches, these tools can only be used after unpacking and applying lzssdec to unpack Betternet Free VPN Premium 6.12.1 Crack Full Version Free kernel cache to its full size.

The kextstat provided by the Cydia alternative software does not work on iOS because the kextstat is based onwhich is a deprecated API in iOS 4 and Mac OS X Snow Leopard. There are other alternative software that can also dump raw XML data.

On developing devices, the kernel is always stored as a statically linked cache stored in /System/Library/Caches/com.apple.kernelcaches/kernelcache which is unpacked and executed at boot.

In the beginning, iOS had a kernel version usually higher than the corresponding version of macOS. Over time, the kernels of iOS and macOS have gotten closer. This is not surprising, considering that iOS introduced new features (such as the ASLR Kernel, the default freezer, and various security-strengthening features) that were first incorporated and subsequently arrived on macOS. It appears Apple is gradually merging the iOS and macOS kernels over time. The build date for each version varies slightly between processors. This is due to the fact that the builds are sequential.

The latest version of the Darwin Kernel updated to iOS 13.6 is 19.6.0, dated July 27, 2020, while for iOS 14 beta 4 it is 20.0.0, dated July 27, 2020.

Kernel Builds
iOS Inkscape Offline Installer Kernel Build Notes
1A420 Darwin Kernel Version 9.0.0d1: Thu Mar 8 01:38:53 PST 2007; root:xnu-933.0.0.144.obj~1/DEVELOPMENT_ARM_S5L8900XRB
1.0 Darwin Kernel Version 9.0.0d1: Tue May 22 21:15:55 PDT 2007; root:xnu-933.0.0.178.obj~3/RELEASE_ARM_S5L8900XRB
1.0.1 Darwin Kernel Version 9.0.0d1: Fri Jun 22 00:38:56 PDT 2007; root:xnu-933.0.1.178.obj~1/RELEASE_ARM_S5L8900XRB
1.0.2
1.1 Darwin Kernel Version 9.0.0d1: Thu Sep 6 23:26:45 PDT 2007; root:xnu-933.0.0.203.obj~6/RELEASE_ARM_S5L8900XRB iPod touch only
1.1.1 Darwin Kernel Version 9.0.0d1: Wed Sep 19 00:08:42 PDT 2007; tenorshare com es iphone - Activators Patch First kernel that was 8900 encrypted
1.1.2 Darwin Kernel Version 9.0.0d1: Wed Oct 10 00:07:49 PDT 2007; root:xnu-933.0.204~7/RELEASE_ARM_S5L8900XRB
1.1.3 Darwin Kernel Version 9.0.0d1: Wed Dec 12 00:16:00 PST 2007; root:xnu-933.0.211~2/RELEASE_ARM_S5L8900XRB
1.1.4
1.1.5 iPod touch only
1.2 beta ?
2.0 beta 2 Darwin Kernel Version 9.3.1: Wed Mar 19 22:40:09 PDT 2008; root:xnu-1228.6.34~1/RELEASE_ARM_S5L8900X
2.0 beta 3 Darwin Kernel Version 9.3.1: Tue Apr 1 21:58:46 PDT 2008; root:xnu-1228.6.39~6/RELEASE_ARM_S5L8900X
2.0 beta 4 Darwin Kernel Version 9.3.1: Tue Apr 15 21:09:34 PDT 2008; root:xnu-1228.6.49~1/RELEASE_ARM_S5L8900X
2.0 beta 5 ?
2.0 beta 6 ?
2.0 beta 7 ?
2.0 GMDarwin Kernel Version 9.3.1: Sun Jun 15 21:37:01 PDT 2008; root:xnu-1228.6.76~45/RELEASE_ARM_S5L8900X
2.0
2.0.1
2.0.2
2.1 beta ?
2.1 beta 2 ?
2.1 beta 3 ?
2.1 beta 4 ?
2.1 Darwin Kernel Version 9.4.1: Sun Aug 10 21:25:25 PDT 2008; root:xnu-1228.7.27~12/RELEASE_ARM_S5L8720X
2.1.1
2.2 beta ?
2.2 beta 2 ?
2.2 Darwin Kernel Version 9.4.1: Sat Nov 1 19:13:13 PDT 2008; root:xnu-1228.7.36~2/RELEASE_ARM_S5L8720X
2.2.1 Darwin Kernel Version 9.4.1: Mon Dec 8 21:02:57 PST 2008; root:xnu-1228.7.37~4/RELEASE_ARM_S5L8720X
3.0 beta Darwin Kernel Version 10.0.0d3: Mon Mar 9 22:51:44 PDT 2009; root:xnu-1357.2.65~12/RELEASE_ARM_S5L8900X
3.0 beta 2 Darwin Kernel Version 10.0.0d3: Wed Mar 25 21:56:57 PDT 2009; root:xnu-1357.2.71~2/RELEASE_ARM_S5L8900X
3.0 beta 3 Darwin Kernel Version 10.0.0d3: Fri Apr 10 15:52:33 PDT 2009; root:xnu-1357.2.78~8/RELEASE_ARM_S5L8900X
3.0 beta 4 Darwin Kernel Version 10.0.0d3: Wed Apr 22 21:48:01 PDT 2009; root:xnu-1357.2.83~2/RELEASE_ARM_S5L8900X
3.0 beta 5 Darwin Kernel Version 10.0.0d3: Wed Apr 29 22:05:19 PDT 2009; root:xnu-1357.2.86~1/RELEASE_ARM_S5L8900X
3.0 GM?
3.0 Darwin Kernel Version 10.0.0d3: Wed May 13 22:16:49 PDT 2009; root:xnu-1357.2.89~4/RELEASE_ARM_S5L8920X
3.0.1
3.1 beta Darwin Kernel Version 10.0.0d3: Wed Jun 24 21:55:27 PDT 2009; root:xnu-1357.5.22~7/RELEASE_ARM_S5L8720X
3.1 beta 2 Darwin Kernel Version 10.0.0d3: Wed Jul 8 21:57:20 PDT 2009; root:xnu-1357.5.23~8/RELEASE_ARM_S5L8920X
3.1 beta 3 Darwin Kernel Version 10.0.0d3: Wed Jul 22 21:39:52 PDT 2009; root:xnu-1357.5.24~13/RELEASE_ARM_S5L8920X
3.1 Darwin Kernel Version 10.0.0d3: Fri Aug 14 13:23:32 PDT 2009; root:xnu-1357.5.30~2/RELEASE_ARM_S5L8920X
3.1.2 Darwin Kernel Version 10.0.0d3: Fri Sep 25 23:35:35 PDT 2009; root:xnu-1357.5.30~3/RELEASE_ARM_S5L8920X
3.1.3 Darwin Kernel Version 10.0.0d3: Fri Dec 18 01:34:28 PST 2009; root:xnu-1357.5.30~6/RELEASE_ARM_S5L8920X
3.2 Darwin Kernel Version 10.3.1: Mon Mar 15 23:15:33 PDT 2010; root:xnu-1504.2.27~18/RELEASE_ARM_S5L8930X iPad only
3.2.1 Darwin Kernel Version 10.3.1: Fri May 28 16:46:17 PDT 2010; root:xnu-1504.2.50~4/RELEASE_ARM_S5L8930X
3.2.2 Darwin Kernel Version 10.3.1: Wed Aug 4 19:08:04 PDT 2010; root:xnu-1504.2.60~1/RELEASE_ARM_S5L8930X
4.0 beta Darwin Kernel Version 10.3.1: Sat Apr 3 03:06:07 PDT 2010; root:xnu-1504.51.1~2/RELEASE_ARM_S5L8920X
4.0 beta 2 Darwin Kernel Version 10.3.1: Wed Apr 14 23:43:59 PDT 2010; root:xnu-1504.50.51~3/RELEASE_ARM_S5L8920X
4.0 beta 3 Darwin Kernel Version 10.3.1: Wed Apr 28 20:47:20 PDT 2010; root:xnu-1504.50.61~1/RELEASE_ARM_S5L8920X
4.0 beta 4 Darwin Kernel Version 10.3.1: Tue May 11 22:12:23 PDT 2010; root:xnu-1504.50.69~2/RELEASE_ARM_S5L8920X
4.0 GM?
4.0 Darwin Kernel Version 10.3.1: Wed May 26 22:28:33 PDT 2010; root:xnu-1504.50.73~2/RELEASE_ARM_S5L8930X
4.0.1
4.0.2 Darwin Kernel Version 10.3.1: Wed Aug 4 18:46:06 PDT 2010; root:xnu-1504.50.80~1/RELEASE_ARM_S5L8930X
4.1 beta Darwin Kernel Version 10.3.1: Mon Jul 5 20:15:12 PDT 2010; root:xnu-1504.55.27~4/RELEASE_ARM_S5L8930X
4.1 beta 2 Darwin Kernel Version 10.3.1: Tue Jul 20 21:31:09 PDT 2010; root:xnu-1504.55.32~9/RELEASE_ARM_S5L8930X
4.1 beta 3 Darwin Kernel Version 10.3.1: Wed Jul 28 01:26:23 PDT 2010; root:xnu-1504.55.33~3/RELEASE_ARM_S5L8930X
4.1 Darwin Kernel Version 10.3.1: Wed Aug 4 22:35:51 PDT 2010; root:xnu-1504.55.33~10/RELEASE_ARM_S5L8930X
4.2 beta Darwin Kernel Version 10.3.1: Tue Sep 7 23:33:25 PDT 2010; root:xnu-1504.58.18~2/RELEASE_ARM_S5L8930X
4.2 beta 2 Darwin Kernel Version 10.4.0: Thu Sep 23 20:56:24 PDT 2010; root:xnu-1504.58.21~5/RELEASE_ARM_S5L8930X
4.2 beta 3 Darwin Kernel Version 10.4.0: Tue Oct 5 21:42:47 PDT 2010; root:xnu-1504.58.25~18/RELEASE_ARM_S5L8930X
4.2 GMDarwin Kernel Version 10.4.0: Wed Oct 20 20:14:45 PDT 2010; root:xnu-1504.58.28~3/RELEASE_ARM_S5L8930X
4.2.1 GM
4.2.1 Darwin Kernel Version 10.4.0: Wed Oct 20 20:14:45 PDT 2010; root:xnu-1504.58.28~3/RELEASE_ARM_S5L8930X
4.2.5 Darwin Kernel Version 10.4.0: Thu Dec 30 19:38:02 PST 2010; root:xnu-1504.62~11/RELEASE_ARM_S5L8930X iPhone 4 only.
4.2.6
4.2.7
4.2.8
4.2.9 Darwin Kernel Version 10.4.0: Fri Jul 8 18:32:26 PDT 2011; root:xnu-1504.63~1/RELEASE_ARM_S5L8930X
4.2.10
4.3 beta Darwin Kernel Version 11.0.0: Tue Jan 4 21:36:31 PST 2011; root:xnu-1735.24~10/RELEASE_ARM_S5L8930X
4.3 beta 2 Darwin Kernel Version 11.0.0: Mon Jan 10 22:08:15 PST 2011; root:xnu-1735.30~2/RELEASE_ARM_S5L8930X
4.3 beta 3 Darwin Kernel Version 11.0.0: Fri Jan 28 13:55:49 PST 2011; root:xnu-1735.39.80~1/RELEASE_ARM_S5L8930X
4.3 GM?
4.3 Darwin Kernel Version 11.0.0: Thu Feb 10 21:46:56 PST 2011; root:xnu-1735.46~2/RELEASE_ARM_S5L8930X
4.3.1
4.3.2 Darwin Kernel Version 11.0.0: Wed Mar 30 18:51:10 PDT 2011; root:xnu-1735.46~10/RELEASE_ARM_S5L8930X
4.3.3
4.3.4 Darwin Kernel Version 11.0.0: Sat Jul 9 00:59:43 PDT 2011; root:xnu-1735.47~1/RELEASE_ARM_S5L8930X
4.3.5
5.0 beta Darwin Kernel Version 11.0.0: Mon May 30 20:28:35 PDT 2011; root:xnu-1878.2.52~1/RELEASE_ARM_S5L8940X
5.0 beta 2 Darwin Kernel Version 11.0.0: Sun Jun 19 18:59:56 PDT 2011; root:xnu-1878.3.20~3/RELEASE_ARM_S5L8940X
5.0 beta 3 Darwin Kernel Version 11.0.0: Thu Jun 30 23:23:57 PDT 2011; root:xnu-1878.4.10~2/RELEASE_ARM_S5L8940X
5.0 beta 4 Darwin Kernel Version 11.0.0: Sun Jul 17 19:21:53 PDT 2011; root:xnu-1878.4.20~4/RELEASE_ARM_S5L8940X
5.0 beta 5 Darwin Kernel Version 11.0.0: Tue Aug 2 22:31:30 PDT 2011; root:xnu-1878.4.80~1/RELEASE_ARM_S5L8930X
5.0 beta 6 Darwin Kernel Version 11.0.0: Sun Aug 14 19:04:49 PDT 2011; root:xnu-1878.4.31~5/RELEASE_ARM_S5L8930X
5.0 beta 7 Darwin Kernel Version 11.0.0: Thu Aug 25 20:47:50 PDT 2011; root:xnu-1878.4.38~2/RELEASE_ARM_S5L8930X
5.0 GMDarwin Kernel Version 11.0.0: Thu Sep 15 23:34:16 PDT 2011; root:xnu-1878.4.43~2/RELEASE_ARM_S5L8930X
5.0
5.0.1 beta Darwin Kernel Version 11.0.0: Wed Oct 19 19:05:07 PDT 2011; root:xnu-1878.4.45~1/RELEASE_ARM_S5L8930X
5.0.1 beta 2 Darwin Kernel Version 11.0.0: Tue Nov 1 20:34:16 PDT 2011; root:xnu-1878.4.46~1/RELEASE_ARM_S5L8940X
5.0.1
5.1 beta Darwin Kernel Version 11.0.0: Sun Nov 13 19:10:13 PST 2011; root:xnu-1878.10.61~7/RELEASE_ARM_S5L8930X
5.1 beta 2 Darwin Kernel Version 11.0.0: Sun Dec 4 18:57:33 PST 2011; root:xnu-1878.10.68~2/RELEASE_ARM_S5L8930X
5.1 beta 3 Darwin Kernel Version 11.0.0: Mon Jan 2 18:46:01 PST 2012; root:xnu-1878.10.74~3/RELEASE_ARM_S5L8930X
5.1 Darwin Kernel Version 11.0.0: Wed Feb 1 23:18:07 PST 2012; root:xnu-1878.11.8~1/RELEASE_ARM_S5L8945X
5.1.1 Darwin Kernel Version 11.0.0: Sun Apr 8 21:51:26 PDT 2012; root:xnu-1878.11.10~1/RELEASE_ARM_S5L8930X
6.0 beta Darwin Kernel Version 13.0.0: Wed May 30 19:23:03 PDT 2012; root:xnu-2107.1.78~18/RELEASE_ARM_S5L8930X
6.0 beta 2 Darwin Kernel Version 13.0.0: Sun Jun 17 19:47:47 PDT 2012; root:xnu-2107.1.61~3/RELEASE_ARM_S5L8930X
6.0 beta 3 Darwin Kernel Version 13.0.0: Sun Jul 8 20:15:17 PDT 2012; root:xnu-2107.2.9~3/RELEASE_ARM_S5L8930X
6.0 beta 4 Darwin Kernel Version 13.0.0: Sun Jul 29 20:15:28 PDT 2012; root:xnu-2107.2.26~4/RELEASE_ARM_S5L8930X
6.0 GMDarwin Kernel Version 13.0.0: Sun Aug 19 00:27:34 PDT 2012; root:xnu-2107.2.33~4/RELEASE_ARM_S5L8930X
6.0
6.0.1 Darwin Kernel Version 13.0.0: Wed Oct 10 23:32:19 PDT 2012; root:xnu-2107.2.34~2/RELEASE_ARM_S5L8950X
6.0.2 iPhone 5 only.
6.1 beta Darwin Kernel Version 13.0.0: Sun Oct 21 19:28:43 PDT 2012; root:xnu-2107.7.51~17/RELEASE_ARM_S5L8930X
6.1 beta 2 Darwin Kernel Tenorshare com es iphone - Activators Patch 13.0.0: Sun Nov 4 19:02:54 PST 2012; root:xnu-2107.7.53~2/RELEASE_ARM_S5L8930X
6.1 beta 3 Darwin Kernel Version 13.0.0: Mon Nov 26 21:17:13 PST 2012; root:xnu-2107.7.53~27/RELEASE_ARM_S5L8930X
6.1 beta 4 Darwin Kernel Version 13.0.0: Sun Dec 9 19:22:45 PST 2012; root:xnu-2107.7.55~6/RELEASE_ARM_S5L8930X
6.1 beta 5 Darwin Kernel Version 13.0.0: Sun Dec 16 20:01:39 PST 2012; root:xnu-2107.7.55~11/RELEASE_ARM_S5L8950X
6.1
6.1.1 beta
6.1.1 iPhone 4s only
6.1.2
6.1.3 beta 2 Darwin Kernel Version 13.0.0: Wed Feb 13 21:35:42 PST 2013; root:xnu-2107.7.55.2.2~1/RELEASE_ARM_S5L8920X
6.1.3
6.1.4 iPhone 5 only.
6.1.5 iPod touch (4th generation) only.
6.1.6 iPod touch (4th generation) and iPhone 3GS only.
7.0 beta Darwin Kernel Version 14.0.0: Wed May 29 23:53:59 PDT 2013; root:xnu-2423.1.1.1.2~1/RELEASE_ARM_S5L8930X
7.0 beta 2 Darwin Kernel Version 14.0.0: Mon Jun 17 00:51:51 PDT 2013; root:xnu-2423.1.28~7/RELEASE_ARM_S5L8930X
7.0 beta 3 Darwin Kernel Version 14.0.0: Mon Jul 1 04:25:28 PDT 2013; root:xnu-2423.1.40~11/RELEASE_ARM_S5L8930X
7.0 beta 4 Darwin Kernel Version 14.0.0: Mon Jul 22 02:12:11 PDT 2013; root:xnu-2423.1.55~8/RELEASE_ARM_S5L8930X
7.0 beta 5 Darwin Kernel Version 14.0.0: Sun Aug 4 22:40:14 PDT 2013; root:xnu-2423.1.70~6/RELEASE_ARM_S5L8930X
7.0 beta 6
7.0 GMDarwin Kernel Version 14.0.0: Tue Aug 13 21:39:05 PDT 2013; root:xnu-2423.1.73~3/RELEASE_ARM_S5L8930X
7.0
7.0.1 Darwin Kernel Version 14.0.0: Mon Sep 9 20:56:02 PDT 2013; root:xnu-2423.1.74~2/RELEASE_ARM64_S5L8960X iPhone 5c and 5s only
7.0.2
7.0.3 Darwin Kernel Version 14.0.0: Fri Sep 27 23:08:32 PDT 2013; root:xnu-2423.3.12~1/RELEASE_ARM64_S5L8960X
7.0.4
7.0.5 iPhone 5c and iPhone 5s only.
7.0.6
7.1 beta Darwin Kernel Version 14.0.0: Mon Nov 11 04:18:01 PST 2013; root:xnu-2423.10.33~9/RELEASE_ARM_S5L8930X
7.1 beta 2 Darwin Kernel Version 14.0.0: Tue Dec 10 21:25:34 PST 2013; root:xnu-2423.10.38.1.1~1/RELEASE_ARM_S5L8930X
7.1 beta 3 Darwin Kernel Version 14.0.0: Thu Jan 2 01:55:45 PST 2014; root:xnu-2423.10.45~5/RELEASE_ARM_S5L8930X
7.1 beta 4 Darwin Kernel Version 14.0.0: Mon Jan 13 03:33:00 PST 2014; root:xnu-2423.10.49.0.1~3/RELEASE_ARM_S5L8930X
7.1 beta 5 Darwin Kernel Version 14.0.0: Mon Jan 27 23:55:13 PST 2014; root:xnu-2423.10.58~2/RELEASE_ARM_S5L8930X
7.1 GMDarwin Kernel Version 14.0.0: Fri Feb 21 19:41:10 PST 2014; root:xnu-2423.10.67~1/RELEASE_ARM_S5L8930X
7.1
7.1.1 Darwin Kernel Version 14.0.0: Fri Mar 28 21:22:10 PDT 2014; root:xnu-2423.10.70~1/RELEASE_ARM_S5L8930X
7.1.2 Darwin Kernel Version 14.0.0: Thu May 15 23:17:54 PDT 2014; root:xnu-2423.10.71~1/RELEASE_ARM64_S5L8960X
8.0 beta Darwin Kernel Version 14.0.0: Mon May 26 22:09:06 PDT 2014; root:xnu-2729.0.0.0.9~2/RELEASE_ARM_S5L8942X
8.0 beta 2 Darwin Kernel Version 14.0.0: Sat Jun 14 16:36:40 PDT 2014; root:xnu-2775.0.0.1.1~3/RELEASE_ARM64_S5L8960X
8.0 beta 3 Darwin Kernel Version 14.0.0: Wed Jul 2 18:51:34 PDT 2014; root:xnu-2783.1.21~19/RELEASE_ARM_S5L8950X
8.0 beta 4 Darwin Kernel Version 14.0.0: Wed Jul 16 21:55:26 PDT 2014; root:xnu-2783.1.40.0.3~2/RELEASE_ARM_S5L8950X
8.0 beta 5 Darwin Kernel Version 14.0.0: Wed Jul 30 23:04:17 PDT 2014; root:xnu-2783.1.62~20/RELEASE_ARM_S5L8950X
8.0 GMDarwin Kernel Version 14.0.0: Tue Aug 19 15:09:47 PDT 2014; root:xnu-2783.1.72~8/RELEASE_ARM64_S5L8960X
8.0
8.0.1 Darwin Kernel Version 14.0.0: Thu Sep 18 21:52:21 PDT 2014; root:xnu-2783.1.72~23/RELEASE_ARM_S5L8950X
8.0.2
8.1 beta Darwin Kernel Version 14.0.0: Sat Sep 27 18:49:49 PDT 2014; root:xnu-2783.3.12~18/RELEASE_ARM_S5L8950X
8.1 beta 2 Darwin Kernel Version 14.0.0: How to use perfect keyboard Oct 3 21:52:09 PDT 2014; root:xnu-2783.3.13~2/RELEASE_ARM_S5L8950X
8.1 Darwin Kernel Version 14.0.0: Fri Oct 7 00:04:37 PDT 2014; root:xnu-2783.3.13~4/RELEASE_ARM_S5L8950X
8.1.1 beta Darwin Kernel Version 14.0.0: Sun Nov 2 20:21:29 PDT 2014; root:xnu-2783.3.21~1/RELEASE_ARM_S5L8950X
8.1.1 Darwin Kernel Version 14.0.0: Mon Nov 3 22:54:30 PDT 2014; root:xnu-2783.3.22~1/RELEASE_ARM_S5L8950X
8.1.2
8.1.3 Darwin Kernel Version 14.0.0: Mon Jan 2 21:29:20 PST 2015; root:xnu-2783.3.26~3/RELEASE_ARM_S5L8950X
8.2 beta ?
8.2 beta 2 ?
8.2 beta 3 Darwin Kernel Version 14.0.0: Sun Dec 14 20:59:15 PST 2014; root:xnu-2783.5.29.0.1~1/RELEASE_ARM_S5L8940X
8.2 beta 4 Darwin Kernel Version 14.0.0: Tue Jan 6 21:02:10 PST 2015; root:xnu-2783.5.32~9/RELEASE_ARM_S5L8940X
8.2 beta 5 Darwin Kernel Version 14.0.0: Mon Jan 26 22:16:17 PST 2015; root:xnu-2783.5.37~11/RELEASE_ARM_S5L8940X
8.2 Darwin Kernel Version 14.0.0: Mon Feb 9 22:07:57 PST 2015; root:xnu-2783.5.38~5/RELEASE_ARM_S5L8950X
8.3 beta ?
8.3 beta 2 ?
8.3 beta 3 Darwin Kernel Version 14.0.0: Mon Mar 4 20:55:58 PST 2015; root:xnu-2784.20.25~26/RELEASE_ARM64_S5L8960X
8.3 beta 4 Darwin Kernel Version 14.0.0: Thu Mar 19 00:16:36 PST 2015; root:xnu-2784.20.31~1/RELEASE_ARM64_S5L8960X
8.3 Darwin Kernel Version 14.0.0: Sun Mar 29 19:44:04 PDT 2015; root:xnu-2784.20.34~2/RELEASE_ARM_S5L8950X
8.4 beta Darwin Kernel Version 14.0.0: Wed Apr 8 21:26:37 PDT 2015; root:xnu-2784.30.1~29/RELEASE_ARM64_T7000
8.4 beta 2 Darwin Kernel Version 14.0.0: Wed Apr 21 21:49:05 PDT 2015; root:xnu-2784.30.2~9/RELEASE_ARM64_S5L8960X
8.4 beta 3 Darwin Kernel Version 14.0.0: Tue May 5 23:09:22 PDT 2015; root:xnu-2784.30.5~7/RELEASE_ARM64_S5L8960X
8.4 beta 4 Darwin Kernel Version 14.0.0: Tue Wed 3 23:19:49 PDT 2015; root:xnu-2784.30.7~13/RELEASE_ARM64_S5L8960X
8.4 Darwin Kernel Version 14.0.0: Wed Jun 24 00:50:15 PDT 2015; root:xnu-2784.30.7~30/RELEASE_ARM64_S5L8960X
8.4.1 beta Darwin Kernel Version 14.0.0: Thu Jul 9 21:54:11 PDT 2015; root:xnu-2784.40.6~1/RELEASE_ARM_S5L8950X
8.4.1 beta 2 Darwin Kernel Version 14.0.0: Tue Jul 28 16:34:51 PDT 2015; root:xnu-2784.40.6~15/RELEASE_ARM_S5L8950X
8.4.1 Darwin Kernel Version 14.0.0: Wed Aug 5 19:24:44 PDT 2015; root:xnu-2784.40.6~18/RELEASE_ARM_S5L8950X
9.0 beta Darwin Kernel Version 15.0.0: Fri May 29 22:14:48 PDT 2015; root:xnu-3216.0.0.1.15~2/RELEASE_ARM64_S5L8960X
9.0 beta 2 Darwin Kernel Version 15.0.0: Mon Jun 15 21:51:54 PDT 2015; root:xnu-3247.1.6.1.1~2/RELEASE_ARM64_S5L8960X
9.0 beta 4 Darwin Kernel Version 15.0.0: Sat Jul 11 20:01:45 PDT 2015; root:xnu-3247.1.56~13\/RELEASE_ARM64_T7001
9.0 beta 5 Darwin Kernel Version 15.0.0: Mon Aug 3 19:58:41 PDT 2015; root:xnu-3247.1.88.1.1~1\/RELEASE_ARM64_T7001
9.0 GMDarwin Kernel Version 15.0.0: Thu Aug 6 22:27:22 PDT 2015; root:xnu-3248.1.2~3\/RELEASE_ARM_S5L8940X
9.0 Darwin Kernel Version 15.0.0: Thu Aug 20 13:11:13 PDT 2015; root:xnu-3248.1.3~1\/RELEASE_ARM_S5L8950X
9.0.1
9.0.2
9.1 beta Darwin Kernel Version 15.0.0: Tenorshare com es iphone - Activators Patch Aug 29 17:41:04 PDT 2015; root:xnu-3248.10.27~10\/RELEASE_ARM_S5L8940X
9.1 beta 2 Darwin Kernel Version 15.0.0: Mon Sep 14 01:24:55 PDT 2015; root:xnu-3248.10.38~3\/RELEASE_ARM64_S5L8960X
9.1 beta 3 Darwin Kernel Version 15.0.0: Fri Sep 25 17:14:21 PDT 2015; root:xnu-3248.10.41~11\/RELEASE_ARM64_S5L8960X
9.1 beta 4 Darwin Kernel Version 15.0.0: Fri Oct 2 14:07:07 PDT 2015; root:xnu-3248.10.42~4\/RELEASE_ARM64_S5L8960X
9.1 beta 5
9.1
9.2 beta Darwin Kernel Version 15.0.0: Sun Oct 18 23:34:30 PDT 2015; root:xnu-3248.20.33.0.1~7\/RELEASE_ARM64_S8000
9.2 beta 2 Darwin Kernel Version 15.0.0: Sun Oct 25 21:50:56 PDT 2015; root:xnu-3248.20.39~8\/RELEASE_ARM64_S8000
9.2 beta 3 Darwin Kernel Version 15.0.0: Fri Nov 6 22:12:13 PST 2015; root:xnu-3248.21.1~2\/RELEASE_ARM64_S5L8960X
9.2 beta 4 Darwin Kernel Version 15.0.0: Fri Nov 13 16:08:07 PST 2015; root:xnu-3248.21.2~1\/RELEASE_ARM64_S5L8960X
9.2
9.2.1 beta Darwin Kernel Version 15.0.0: Wed Dec 9 22:19:38 PST 2015; root:xnu-3248.31.3~2\/RELEASE_ARM64_S5L8960X
9.2.1 beta 2
9.2.1
9.3 beta Darwin Kernel Version 15.4.0: Tue Jan 5 21:24:25 PST 2016; root:xnu-3248.40.155.1.1~3\/RELEASE_ARM64_S5L8960X
9.3 beta 1.1
9.3 beta 2 Darwin Kernel Version 15.4.0: Tue Jan 19 00:18:39 PST 2016; root:xnu-3248.40.166.0.1~10\/RELEASE_ARM64_S8000
9.3 beta 3 Darwin Kernel Version 15.4.0: Sun Jan 31 22:48:58 PST 2016; root:xnu-3248.40.173.0.1~13\/RELEASE_ARM64_S8000
9.3 beta 4 Darwin Kernel Version 15.4.0: Sun Feb 14 23:17:56 PST 2016; root:xnu-3248.41.3~16\/RELEASE_ARM64_S8000
9.3 beta 5 Darwin Kernel Version 15.4.0: Sun Feb 22 01:48:23 PST 2016; root:xnu-3248.41.4~36\/RELEASE_ARM64_S8000
9.3 beta 6
9.3 beta 7 Darwin Kernel Version 15.4.0: Fri Feb 19 13:54:52 PST 2016; root:xnu-3248.41.4~28\/RELEASE_ARM64_S8000
9.3
9.3.1
9.3.2 beta Darwin Kernel Version 15.5.0: Thu Mar 31 17:49:02 PDT 2016; root:xnu-3248.50.18~19\/RELEASE_ARM64_S8000
9.3.2 beta 2 Darwin Kernel Version 15.5.0: Tue Apr 5 15:12:03 PDT 2016; root:xnu-3248.50.20~12\/RELEASE_ARM64_S8000
9.3.2 beta 3 Darwin Kernel Version 15.5.0: Mon Apr 18 16:44:07 PDT 2016; root:xnu-3248.50.21~4\/RELEASE_ARM64_S8000
9.3.2 beta 4
9.3.2
9.3.3 beta Darwin Kernel Version 15.6.0: Tue May 17 19:53:27 PDT 2016; root:xnu-3248.60.3~3\/RELEASE_ARM64_S5L8960X
9.3.3 beta 2 Darwin Kernel Version 15.6.0: Tue May 31 19:52:45 PDT 2016; root:xnu-3248.60.4~1\/RELEASE_ARM64_S8000
9.3.3 beta 3 Darwin Kernel Version 15.6.0: Thu Jun 16 18:08:00 PDT 2016; root:xnu-3248.60.8~1/RELEASE_ARM_S5L8950X
9.3.3 beta 4 Darwin Kernel Version 15.6.0: Mon Jun 20 20:10:21 PDT 2016; root:xnu-3248.60.9~1/RELEASE_ARM_S5L8950X
9.3.3 beta 5
9.3.3
9.3.4
9.3.5 Darwin Kernel Version 15.6.0: Fri Aug 19 10:37:56 PDT 2016; root:xnu-3248.61.1~1\/RELEASE_ARM64_S5L8960X
9.3.6
10.0 beta Darwin Kernel Version 16.0.0: Wed May 25 21:19:24 PDT 2016; root:xnu-3705.0.0.2.3~1\/RELEASE_ARM64_S8000
10.0 beta 2 Darwin Kernel Version 16.0.0: Tue Jun 28 21:38:14 PDT 2016; root:xnu-3757~291\/RELEASE_ARM64_S8000
10.0 beta 3 Darwin Kernel Version 16.0.0: Sat Jul 9 23:57:18 PDT 2016; root:xnu-3777.0.0.0.1~28\/RELEASE_ARM64_S8000
10.0 beta 4 Darwin Kernel Version 16.0.0: Wed Jul 27 19:44:34 PDT 2016; root:xnu-3789.1.4.2.1~1\/RELEASE_ARM64_S8000
10.0 beta 5 Darwin Kernel Version 16.0.0: Fri Aug 5 22:15:30 PDT 2016; root:xnu-3789.1.24~11\/RELEASE_ARM64_S8000
10.0 beta 6 Darwin Kernel Version 16.0.0: Wed Aug 10 21:55:58 PDT 2016; root:xnu-3789.2.2~4\/RELEASE_ARM64_S8000
10.0 beta 7
10.0 beta 8
10.0 Darwin Kernel Version 16.0.0: Wed Aug 10 22:33:10 PDT 2016; root:xnu-3789.2.2~3\/RELEASE_ARM64_T8010
10.0.1 GMDarwin Kernel Version 16.0.0: Sun Aug 28 20:36:54 PDT 2016; root:xnu-3789.2.4~3\/RELEASE_ARM64_S8000
10.0.1
10.0.2
10.1 beta Darwin Kernel Version 16.1.0: Fri Sep 16 03:53:22 PDT 2016; root:xnu-3789.20.46~54\/RELEASE_ARM64_S8000
10.1 beta 2 Darwin Kernel Version 16.1.0: Thu Sep 29 21:56:12 PDT 2016; root:xnu-3789.22.3~1\/RELEASE_ARM64_S8000
10.1 beta 3
10.1 beta 4
10.1
10.1.1
10.2 beta Darwin Kernel Version 16.3.0: Sun Oct 23 20:18:32 PDT 2016; root:xnu-3789.30.76~6\/RELEASE_ARM64_S8000
10.2 beta 2 Darwin Kernel Version 16.3.0: Tue Nov 1 22:23:11 PDT 2016; root:xnu-3789.30.86~54\/RELEASE_ARM64_S8000
10.2 beta 3 Darwin Kernel Version 16.3.0: Mon Nov 7 22:58:42 PST 2016; root:xnu-3789.30.92~36\/RELEASE_ARM64_S8000
10.2 beta 4 Darwin Kernel Version 16.3.0: Mon Nov 7 19:32:10 PST 2016; root:xnu-3789.30.92~29\/RELEASE_ARM64_S8000
10.2 beta 5 Darwin Kernel Version 16.3.0: Tue Nov 29 21:40:09 PST Microsoft Office 4 Crack + Product Key Free Download root:xnu-3789.32.1~4\/RELEASE_ARM64_S8000
10.2 beta 6
10.2 beta 7
10.2
10.2.1 beta Darwin Kernel Version 16.3.0: Thu Dec 1 19:49:21 PST 2016; root:xnu-3789.42.1~1\/RELEASE_ARM64_S8000
10.2.1 beta 2 Darwin Kernel Version 16.3.0: Thu Dec 15 22:41:46 PST 2016; root:xnu-3789.42.2~1\/RELEASE_ARM64_S8000
10.2.1 beta 3
10.2.1 beta 4
10.2.1
10.3 beta Darwin Kernel Version 16.5.0: Mon Jan 16 21:43:53 PST 2017; root:xnu-3789.50.189~28\/RELEASE_ARM64_T8010
10.3 beta 2 Kernel Version 16.5.0: Tue Jan 31 21:09:24 PST 2017; root:xnu-3789.50.195.1.1~2/RELEASE_ARM_S5L8950X
10.3 beta 3 Darwin Kernel Version 16.5.0: Fri Feb 10 22:11:20 PST 2017; root:xnu-3789.50.208~47/RELEASE_ARM_S5L8950X
10.3 beta 4 Darwin Kernel Version 16.5.0: Thu Feb 23 23:48:09 PST 2017; root:xnu-3789.52.2~9\/RELEASE_ARM64_S8000
10.3 beta 5
10.3 beta 6
10.3 beta 7
10.3 Darwin Kernel Version 16.5.0: Thu Feb 23 23:22:54 PST 2017; root:xnu-3789.52.2~7\/RELEASE_ARM64_S8000
10.3.1
10.3.2 beta Darwin Kernel Version 16.6.0: Mon Mar 20 22:28:31 PDT 2017; root:xnu-3789.60.12~10\/RELEASE_ARM64_S8000
10.3.2 beta 2 Darwin Kernel Version 16.6.0: Tue Apr 4 21:19:08 PDT 2017; root:xnu-3789.60.15~13\/RELEASE_ARM64_S8000
10.3.2 beta 3 Darwin Kernel Version 16.6.0: Tue Apr 11 22:03:42 PDT 2017; root:xnu-3789.60.20~11\/RELEASE_ARM64_S8000
10.3.2 beta 4 Darwin Kernel Version 16.6.0: Mon Apr 17 20:33:39 PDT 2017; root:xnu-3789.60.24~25/RELEASE_ARM64_S8000
10.3.2 beta 5
10.3.2 Darwin Kernel Version 16.6.0: Mon Apr 17 17:33:34 PDT 2017; root:xnu-3789.60.24~24/RELEASE_ARM_S8000
10.3.3 beta Darwin Kernel Version 16.7.0: Mon May 8 21:45:24 PDT 2017; root:xnu-3789.70.9~13/RELEASE_ARM64_T7000
10.3.3 beta 2 Darwin Kernel Version 16.7.0: Wed May 24 22:28:55 PDT 2017; root:xnu-3789.70.11~6/RELEASE_ARM64_S5L8960X
10.3.3 beta 3 Darwin Kernel Version 16.7.0: Tue Jun 6 21:56:23 PDT 2017; root:xnu-3789.70.15~6/RELEASE_ARM64_T8010
10.3.3 beta 4 Darwin Kernel Version 16.7.0: Thu Jun 15 22:48:15 PDT 2017; root:xnu-3789.70.16~6/RELEASE_ARM64_S8000
10.3.3 beta 5 Darwin Kernel Version 16.7.0: Thu Jun 15 22:48:16 PDT 2017; root:xnu-3789.70.16~6/RELEASE_ARM64_T8010
10.3.3 beta 6 Darwin Kernel Version 16.7.0: Thu Jun 15 18:33:36 PDT 2017; root:xnu-3789.70.16~4/RELEASE_ARM64_S8000
10.3.3
10.3.4 Darwin Kernel Version 16.7.0: Wed Jul 26 11:08:56 PDT 2017; root:xnu-3789.70.16~21/RELEASE_ARM_S5L8950X
11.0 beta Darwin Kernel Version 17.0.0: Sat May 27 21:47:07 PDT 2017; root:xnu-4397.0.0.2.4~1/RELEASE_ARM64_S8000
11.0 beta 2 Darwin Kernel Version 17.0.0: Tue Jun 13 21:19:50 PDT 2017; root:xnu-4481.0.0.2.1~1/RELEASE_ARM64_S8000
11.0 beta 3 Darwin Kernel Version 17.0.0: Thu Jun 29 22:31:39 PDT 2017; root:xnu-4532.0.0.0.1~30/RELEASE_ARM64_T7000
11.0 beta 4 Darwin Kernel Version 17.0.0: Thu Jul 20 19:49:59 PDT 2017; root:xnu-4556.0.0.2.5~1/RELEASE_ARM64_S5L8960X
11.0 beta 5 Darwin Kernel Dvdfab player 5 manual - Crack Key For U 17.0.0: Tue Aug 1 21:11:37 PDT 2017; root:xnu-4570.1.24.2.3~1/RELEASE_ARM64_T8010
11.0 beta 6 Darwin Kernel Version 17.0.0: Wed Aug 9 22:41:48 PDT 2017; root:xnu-4570.2.3~8/RELEASE_ARM64_T8010
11.0 beta 7 Darwin Kernel Version 17.0.0: Fri Aug 18 20:14:27 PDT 2017; root:xnu-4570.2.5~84/RELEASE_ARM64_T8010
11.0 beta 8
11.0 beta 9
11.0 beta 10
11.0 GMDarwin Kernel Version 17.0.0: Fri Sep 1 14:59:17 PDT 2017; root:xnu-4570.2.5~167/RELEASE_ARM64_S8000
11.0
11.0.1
11.0.2
11.0.3
11.1 beta Darwin Kernel Version 17.2.0: Sun Sep 17 22:21:07 PDT 2017; root:xnu-4570.20.55~10/RELEASE_ARM64_T8015
11.1 beta 2 Darwin Kernel Version 17.2.0: Sat Sep 30 23:14:15 PDT 2017; root:xnu-4570.20.62~9/RELEASE_ARM64_T8015
11.1 beta 3
11.1 beta 4 Darwin Kernel Version 17.2.0: Fri Sep 29 18:14:51 PDT 2017; root:xnu-4570.20.62~4/RELEASE_ARM64_T8015
11.1 beta 5
11.1
11.1.1
11.1.2
11.2 beta Darwin Kernel Version 17.3.0: Wed Oct 25 19:27:20 PDT 2017; root:xnu-4570.30.79~22/RELEASE_ARM64_T8015
11.2 beta 2 Darwin Kernel Version 17.3.0: Sun Oct 29 17:18:38 PDT 2017; root:xnu-4570.30.85~18/RELEASE_ARM64_T8015
11.2 beta 3 Darwin Kernel Version 17.3.0: Mon Nov 6 22:29:20 PST 2017; root:xnu-4570.32.1~2/RELEASE_ARM64_T8015
11.2 beta 4
11.2 beta 5
11.2 beta 6 Darwin Kernel Version 17.3.0: Mon Nov 6 21:19:16 PST 2017; root:xnu-4570.32.1~1/RELEASE_ARM64_T8015
11.2
11.2.1
11.2.2
11.2.5 beta Darwin Kernel Version 17.4.0: Sat Dec 2 21:26:33 PST 2017; root:xnu-4570.40.6~8/RELEASE_ARM64_T8015
11.2.5 beta 2 Darwin Kernel Version 17.4.0: Wed Dec 13 22:51:57 PST 2017; root:xnu-4570.40.9~7/RELEASE_ARM64_T8015
11.2.5 beta 3
11.2.5 beta 4
11.2.5 beta 5
11.2.5 beta 6
11.2.5 beta 7 Darwin Kernel Version 17.4.0: Fri Dec 8 19:35:51 PST 2017; root:xnu-4570.40.9~1/RELEASE_ARM64_T8015
11.2.5
11.2.6
11.3 beta Darwin Kernel Version 17.5.0: Sat Jan 13 00:03:04 PST 2018; root:xnu-4570.50.243~9/RELEASE_ARM64_T8015
11.3 beta 2 Darwin Kernel Version 17.5.0: Fri Jan 26 22:56:33 PST 2018; root:xnu-4570.50.257~6/RELEASE_ARM64_T8015
11.3 beta 3 Darwin Kernel Version 17.5.0: Sat Feb 10 17:01:35 PST 2018; root:xnu-4570.50.279~9/RELEASE_ARM64_T8015
11.3 beta 4 Darwin Kernel Version 17.5.0: Sat Feb 24 20:24:10 PST 2018; root:xnu-4570.50.294~5/RELEASE_ARM64_T8015
11.3 beta 5 Darwin Kernel Version 17.5.0: Tue Mar 6 20:47:58 PST 2018; root:xnu-4570.52.2~3/RELEASE_ARM64_T8015
11.3 beta 6
11.3 Darwin Kernel Version 17.5.0: Tue Mar 13 21:32:11 PDT 2018; root:xnu-4570.52.2~8/RELEASE_ARM64_T8010
11.3.1
11.4 beta Darwin Kernel Version 17.5.0: Sun Mar 25 20:49:19 PDT 2018; root:xnu-4570.60.10.0.1~16/RELEASE_ARM64_T8015
11.4 beta 2 Darwin Kernel Version 17.6.0: Thu Apr 5 22:33:56 PDT 2018; root:xnu-4570.60.16~9/RELEASE_ARM64_T8015
11.4 beta 3 Darwin Kernel Version 17.6.0: Sun Apr 22 03:29:53 PDT 2018; root:xnu-4570.60.19~25/RELEASE_ARM64_T8015
11.4 beta 4 Darwin Kernel Version 17.6.0: Tue May 1 16:16:12 PDT 2018; root:xnu-4570.60.21~7/RELEASE_ARM64_T8015
11.4 beta 5
11.4 beta 6
11.4 Darwin Kernel Version 17.6.0: Mon Apr 30 18:48:32 PDT 2018; root:xnu-4570.60.21~3/RELEASE_ARM64_T8015
11.4.1 beta Darwin Kernel Version 17.7.0: Mon May 21 19:02:13 PDT 2018; root:xnu-4570.70.14~16/RELEASE_ARM64_T8015
11.4.1 beta 2 Darwin Kernel Version 17.7.0: Sun Jun 3 20:38:12 PDT 2018; root:xnu-4570.70.19~13/RELEASE_ARM64_T8015
11.4.1 beta 3 Darwin Kernel Version 17.7.0: Tue Jun 12 20:37:30 PDT 2018; root:xnu-4570.70.24~9/RELEASE_ARM64_T8015
11.4.1 beta 4
11.4.1 beta 5
11.4.1 Darwin Kernel Version 17.7.0: Mon Jun 11 19:06:27 PDT 2018; root:xnu-4570.70.24~3/RELEASE_ARM64_T8015
12.0 beta Darwin Kernel Version 18.0.0: Fri May 25 21:25:37 PDT 2018; root:xnu-4903.200.199.12.3~1/RELEASE_ARM64_T8015
12.0 beta 2 Darwin Kernel Version 18.0.0: Wed Jun 13 21:04:46 PDT 2018; root:xnu-4903.200.249.22.3~1/RELEASE_ARM64_T8015
12.0 beta 3 Darwin Kernel Version 18.0.0: Tue Jun 26 21:06:03 PDT 2018; root:xnu-4903.200.274.32.3~1/RELEASE_ARM64_T8015
12.0 beta 4 Darwin Kernel Version 18.0.0: Mon Jul 9 21:17:19 PDT 2018; root:xnu-4903.200.304.42.1~1/RELEASE_ARM64_T8015
12.0 beta 5 Darwin Kernel Version 18.0.0: Wed Jul 25 22:51:45 PDT 2018; root:xnu-4903.200.327.52.1~1/RELEASE_ARM64_T8015
12.0 beta 6 Darwin Kernel Version 18.0.0: Wed Aug 1 21:11:01 PDT 2018; root:xnu-4903.200.342.62.3~1/RELEASE_ARM64_T8015
12.0 beta 7 Darwin Kernel Version 18.0.0: Sun Aug 5 21:44:00 PDT 2018; root:xnu-4903.200.354~11/RELEASE_ARM64_T8015
12.0 beta 8 Darwin Kernel Version 18.0.0: Fri Aug 10 21:57:57 PDT 2018; root:xnu-4903.202.1~2/RELEASE_ARM64_T8015
12.0 beta 9 Darwin Kernel Version 18.0.0: Wed Aug 15 21:51:15 PDT 2018; root:xnu-4903.202.2~2/RELEASE_ARM64_T8015
12.0 beta 10
12.0 beta 11
12.0 beta 12
12.0 GMDarwin Kernel Version 18.0.0: Tue Aug 14 22:07:16 PDT 2018; root:xnu-4903.202.2~1/RELEASE_ARM64_T8015
12.0
12.0.1
12.1 beta Darwin Kernel Version 18.2.0: Mon Sep 10 22:05:56 PDT 2018; root:xnu-4903.220.42~21/RELEASE_ARM64_T8015
12.1 beta 2 Darwin Kernel Version 18.2.0: Sun Sep 23 20:16:38 PDT 2018; root:xnu-4903.220.48~40/RELEASE_ARM64_T8015
12.1 beta 3 Darwin Kernel Version 18.2.0: Wed Oct 3 02:49:20 PDT 2018; root:xnu-4903.222.1~7/RELEASE_ARM64_T8015
12.1 beta 4 Darwin Kernel Version 18.2.0: Tue Oct 9 18:52:50 PDT 2018; root:xnu-4903.222.4~3/RELEASE_ARM64_T8015
12.1 beta 5 Darwin Kernel Version 18.2.0: Tue Oct 16 22:15:34 PDT 2018; root:xnu-4903.222.5~3/RELEASE_ARM64_T8015
12.1 Darwin Kernel Version 18.2.0: Tue Oct 16 21:02:33 PDT 2018; root:xnu-4903.222.5~1/RELEASE_ARM64_T8015
12.1.1 beta Darwin Kernel Version 18.2.0: Thu Oct 25 21:36:46 PDT 2018; root:xnu-4903.230.15~8/RELEASE_ARM64_T8015
12.1.1 beta 2 Darwin Kernel Version 18.2.0: Sat Nov 3 03:45:48 PDT 2018; root:xnu-4903.232.1~3/RELEASE_ARM64_T8015
12.1.1 beta 3 Darwin Kernel Version 18.2.0: Mon Nov 12 21:07:36 PST 2018; root:xnu-4903.232.2~2/RELEASE_ARM64_T8020
12.1.1 Darwin Kernel Version 18.2.0: Mon Nov 12 20:32:01 PST 2018; root:xnu-4903.232.2~1/RELEASE_ARM64_T8020
12.1.2 beta Darwin Kernel Version 18.2.0: Sun Dec 2 20:53:08 PST 2018; root:xnu-4903.240.8~8/RELEASE_ARM64_T8015
12.1.2 Darwin Kernel Version 18.2.0: Mon Nov 12 20:32:01 PST 2018; root:xnu-4903.232.2~1/RELEASE_ARM64_T8020
12.1.3 beta 2 Darwin Kernel Version 18.2.0: Sun Dec 16 20:44:43 PST 2018; root:xnu-4903.240.10~8/RELEASE_ARM64_T8020
12.1.3 beta 3 Darwin Kernel Version 18.2.0: Wed Dec 19 22:27:19 PST 2018; root:xnu-4903.242.2~2/RELEASE_ARM64_T8020
12.1.3 beta 4
12.1.3 Darwin Kernel Version 18.2.0: Wed Dec 19 20:28:53 PST 2018; root:xnu-4903.242.2~1/RELEASE_ARM64_T8020
12.1.4
12.2 beta Darwin Kernel Version 18.5.0: Sun Jan 13 21:01:59 PST 2019; root:xnu-4903.250.305~10/RELEASE_ARM64_T8020
12.2 beta 2 Darwin Kernel Version 18.5.0: Wed Jan 30 19:26:26 PST 2019; root:xnu-4903.250.319~58/RELEASE_ARM64_T8020
12.2 beta 3 Darwin Kernel Version 18.5.0: Sun Feb 10 20:48:56 PST 2019; root:xnu-4903.250.336.0.1~10/RELEASE_ARM64_T8020
12.2 beta 4 Darwin Kernel Version 18.5.0: Sun Feb 24 21:50:15 PST 2019; root:xnu-4903.250.349~13/RELEASE_ARM64_T8020
12.2 beta 5 Darwin Kernel Version 18.5.0: Tue Mar 5 21:34:09 PST 2019; root:xnu-4903.252.2~2/RELEASE_ARM64_T8020
12.2 beta 6
12.2 Darwin Kernel Version 18.5.0: Tue Mar 5 19:52:18 PST 2019; root:xnu-4903.252.2~1/RELEASE_ARM64_T8020
12.3 beta Darwin Kernel Version 18.6.0: Mon Mar 18 23:03:29 PDT 2019; root:xnu-4903.260.65.100.1~2/RELEASE_ARM64_T8015
12.3 beta 2 Darwin Kernel Version 18.6.0: Mon Apr 1 21:12:58 PDT 2019; root:xnu-4903.260.74.100.1~1/RELEASE_ARM64_T8020
12.3 beta 3 Darwin Kernel Version 18.6.0: Thu Apr 18 19:45:13 PDT 2019; root:xnu-4903.260.85.0.2~1/RELEASE_ARM64_T8020
12.3 beta 4 Darwin Kernel Version 18.6.0: Thu Apr 25 23:57:27 PDT 2019; root:xnu-4903.262.2~3/RELEASE_ARM64_T8015
12.3 beta 5
12.3 beta 6
12.3 Darwin Kernel Version 18.6.0: Thu Apr 25 22:14:10 PDT 2019; root:xnu-4903.262.2~2/RELEASE_ARM64_T8020
12.3.1 (12F203)
12.3.1 (12F8202) Darwin Kernel Version 18.6.0: Thu May 9 15:45:33 PDT 2019; root:xnu-4903.262.2~4/RELEASE_ARM64_T8010
12.3.2 Darwin Kernel Version 18.6.0: Thu Apr 25 22:14:08 PDT 2019; root:xnu-4903.262.2~2/RELEASE_ARM64_T8015
12.4 beta Darwin Kernel Version 18.6.0: Tue May 7 23:38:12 PDT 2019; root:xnu-4903.270.19.100.1~3/RELEASE_ARM64_T8020
12.4 beta 2
12.4 beta 3 Darwin Kernel Version 18.7.0: Tue May 21 01:53:36 PDT 2019; root:xnu-4903.270.29~10/RELEASE_ARM64_T8020
12.4 beta 4 Darwin Kernel Version 18.7.0: Wed Jun 5 21:04:51 PDT 2019; root:xnu-4903.270.37~24/RELEASE_ARM64_T8020
12.4 beta 5 Darwin Kernel Version 18.7.0: Fri Jun 14 21:12:14 PDT 2019; root:xnu-4903.270.38~24/RELEASE_ARM64_T8020
12.4 beta 6 Darwin Kernel Version 18.7.0: Tue Jun 25 22:53:57 PDT 2019; root:xnu-4903.270.47~11/RELEASE_ARM64_T8020
12.4 beta 7
12.4 Darwin Kernel Version 18.7.0: Fri Jun 21 22:24:16 PDT 2019; root:xnu-4903.270.47~7/RELEASE_ARM64_T8015
12.4.1 Darwin Kernel Version 18.7.0: Mon Aug 19 22:24:08 PDT 2019; root:xnu-4903.272.1~1/RELEASE_ARM64_T8020
12.4.2 Darwin Kernel Version 18.7.0: Mon Aug 19 22:24:08 PDT 2019; root:xnu-4903.272.1~1/RELEASE_ARM64_T7000
12.4.3
12.4.4
12.4.5
12.4.6
12.4.7
12.4.8
13.0 beta Darwin Kernel Version 19.0.0: Tue May 21 03:52:25 PDT 2019; root:xnu-6041.0.0.112.1~1/RELEASE_ARM64_T8020
13.0 beta 2 Darwin Kernel Version 19.0.0: Sun Jun 9 18:57:16 PDT 2019; root:xnu-6110.0.0.120.8~3/RELEASE_ARM64_T8020
13.0 beta 3 Darwin Kernel Version 19.0.0: Thu Jun 27 20:08:29 PDT 2019; root:xnu-6153.0.13.132.4~1/RELEASE_ARM64_T8020
13.0 beta 4 Darwin Kernel Version 19.0.0: Tue Jul 9 00:52:55 PDT 2019; root:xnu-6153.0.59.0.2~63/RELEASE_ARM64_T8020
13.0 beta 5 Darwin Kernel Version 19.0.0: Sun Jul 21 19:17:20 PDT 2019; root:xnu-6153.0.98.0.2~30/RELEASE_ARM64_T8020
13.0 beta 6 Darwin Kernel Version 19.0.0: Tue Jul 30 23:56:43 PDT 2019; root:xnu-6153.0.103.8~3/RELEASE_ARM64_T8020
13.0 beta 7 Darwin Kernel Version 19.0.0: Fri Aug 9 23:13:23 PDT 2019; root:xnu-6153.0.103.11~2/RELEASE_ARM64_T8020
13.0 beta 8 Darwin Kernel Version 19.0.0: Thu Aug 15 21:21:27 PDT 2019; root:xnu-6153.0.103.12~3/RELEASE_ARM64_T8020
13.0 GMDarwin Kernel Version 19.0.0: Mon Aug 12 20:19:35 PDT 2019; root:xnu-6153.0.103.12~1/RELEASE_ARM64_T8015
13.0
13.1 beta Darwin Kernel Version 19.0.0: Sun Aug 18 23:18:25 PDT 2019; root:xnu-6153.0.166~14/RELEASE_ARM64_T8015
13.1 beta 2 Darwin Kernel Version 19.0.0: Thu Aug 29 23:02:07 PDT 2019; root:xnu-6153.2.2~5/RELEASE_ARM64_T8020
13.1 beta 3 Darwin Kernel Version 19.0.0: Fri Sep 6 09:12:32 PDT 2019; root:xnu-6153.2.3~7/RELEASE_ARM64_T8015
13.1 beta 4
13.1 Darwin Kernel Version 19.0.0: Tue Sep 3 21:52:14 PDT 2019; root:xnu-6153.2.3~2/RELEASE_ARM64_T8030
13.1.1
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13.2 beta Darwin Kernel Version 19.0.0: Sun Sep 22 21:45:32 PDT 2019; root:xnu-6153.40.121.0.1~23/RELEASE_ARM64_T8020
13.2 beta 2 Darwin Kernel Version 19.0.0: Thu Oct 3 23:49:24 PDT 2019; root:xnu-6153.40.150.100.1~1/RELEASE_ARM64_T8030
13.2 beta 3 Darwin Kernel Version 19.0.0: Fri Oct 11 02:14:05 PDT 2019; root:xnu-6153.42.1~3/RELEASE_ARM64_T8010
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13.3 beta 2 Darwin Kernel Version 19.2.0: Wed Nov 6 02:29:57 PST 2019; root:xnu-6153.60.66~54/RELEASE_ARM64_T8030
13.3 beta 3 Darwin Kernel Version 19.2.0: Tue Nov 12 22:06:16 PST 2019; root:xnu-6153.60.66~63/RELEASE_ARM64_T8030
13.3 beta 4
13.3 Darwin Kernel Version 19.2.0: Mon Nov 4 17:44:49 PST 2019; root:xnu-6153.60.66~39/RELEASE_ARM64_T8010
13.3.1 beta Darwin Kernel Version 19.3.0: Sun Dec 8 21:03:13 PST 2019; root:xnu-6153.80.8.0.1~13/RELEASE_ARM64_T8010
13.3.1 beta 2 Darwin Kernel Version 19.3.0: Thu Jan 9 22:14:53 PST 2020; root:xnu-6153.82.3~2/RELEASE_ARM64_T8010
13.3.1 beta 3
13.3.1 Darwin Kernel Version 19.3.0: Thu Jan 9 21:10:55 PST 2020; root:xnu-6153.82.3~1/RELEASE_ARM64_T8010
13.4 beta Darwin Kernel Version 19.4.0: Wed Jan 29 20:44:26 PST 2020; root:xnu-6153.100.178.100.2~4/RELEASE_ARM64_T8010
13.4 beta 2 Darwin Kernel Version 19.4.0: Tue Feb 11 21:22:30 PST 2020; root:xnu-6153.100.196~52/RELEASE_ARM64_T8010
13.4 beta 3 Darwin Kernel Version 19.4.0: Thu Feb 20 00:09:27 PST 2020; root:xnu-6153.102.2~1/RELEASE_ARM64_T8010
13.4 beta 4 Darwin Kernel Version 19.4.0: Wed Feb 26 00:59:07 PST 2020; root:xnu-6153.102.3~5/RELEASE_ARM64_T8010
13.4 beta 5 Darwin Kernel Version 19.4.0: Wed Feb 26 00:59:07 PST 2020; root:xnu-6153.102.3~5/RELEASE_ARM64_T8010
13.4 beta 6 Darwin Kernel Version 19.4.0: Mon Feb 24 22:04:12 PST 2020; root:xnu-6153.102.3~1/RELEASE_ARM64_T8010
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13.4.5 beta 2 Darwin Kernel Version 19.5.0: Sun Apr 5 22:05:12 PDT 2020; root:xnu-6153.120.27~19/RELEASE_ARM64_T8027
13.5 beta 3 Darwin Kernel Version 19.5.0: Sun Apr 19 23:40:03 PDT 2020; root:xnu-6153.120.31~15/RELEASE_ARM64_T8010
13.5 beta 4 Darwin Kernel Version 19.5.0: Wed Apr 29 21:33:50 PDT 2020; root:xnu-6153.122.1~2/RELEASE_ARM64_T8027
13.5 GMDarwin Kernel Version 19.5.0: Tue Apr 28 22:25:26 PDT 2020; root:xnu-6153.122.1~1/RELEASE_ARM64_T8010
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13.5.1 Darwin Kernel Version 19.5.0: Tue May 26 20:56:04 PDT 2020; root:xnu-6153.122.2~1/RELEASE_ARM64_S8000
13.5.5 beta Darwin Kernel Version 19.6.0: Sun May 17 23:49:11 PDT 2020; root:xnu-6153.140.21~11/RELEASE_ARM64_T8010
13.6 beta 2 Darwin Kernel Version 19.6.0: Tue Jun 2 23:09:45 PDT 2020; root:xnu-6153.140.27.0.1~17/RELEASE_ARM64_T8010
13.6 beta 3 Darwin Kernel Version 19.6.0: Sun Jun 21 23:18:41 PDT 2020; root:xnu-6153.142.1~3/RELEASE_ARM64_T8010
13.6 GMDarwin Kernel Version 19.6.0: Sat Jun 27 04:36:25 PDT 2020; root:xnu-6153.142.1~4/RELEASE_ARM64_T8030
13.6
13.6.1
13.7 beta Darwin Kernel Version 19.6.0: Sat Jul 11 00:58:54 PDT 2020; root:xnu-6153.142.1~8/RELEASE_ARM64_T8010
14.0 beta Darwin Kernel Version 20.0.0: Thu Jun 11 21:44:34 PDT 2020; root:xnu-7090.0.0.112.4~2/RELEASE_ARM64_T8010
14.0 beta 2 Darwin Kernel Version 20.0.0: Tue Jun 30 22:45:10 PDT 2020; root:xnu-7147.0.0.122.1~2/RELEASE_ARM64_T8015
14.0 beta 3 Darwin Kernel Version 20.0.0: Mon Jul 13 22:51:19 PDT 2020; root:xnu-7168.0.0.132.1~1/RELEASE_ARM64_T8030
14.0 beta 4 Darwin Kernel Version tenorshare com es iphone - Activators Patch Mon Jul 27 02:44:58 PDT 2020; root:xnu-7195.0.8.0.1~21/RELEASE_ARM64_T8015
14.0 beta 5 Darwin Kernel Version 20.0.0: Wed Aug 12 22:56:55 PDT 2020; root:xnu-7195.0.33~64/RELEASE_ARM64_T8010
14.0 beta 6 Darwin Kernel Version 20.0.0: Mon Aug 17 09:09:19 PDT 2020; root:xnu-7195.0.41~15/RELEASE_ARM64_S8000
14.0 beta 7 Darwin Kernel Version 20.0.0: Wed Aug 26 23:29:06 PDT 2020; root:xnu-7195.0.46~3/RELEASE_ARM64_T8015
14.0 beta 8
14.0 GMDarwin Kernel Version 20.0.0: Fri Aug 28 23:05:58 PDT 2020; root:xnu-7195.0.46~9/RELEASE_ARM64_S8000
14.0
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14.1 GMDarwin Kernel Version 20.0.0: Wed Sep 30 03:24:26 PDT 2020; root:xnu-7195.0.46~41/RELEASE_ARM64_T8101
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14.2 beta Darwin Kernel Version 20.1.0: Fri Sep 11 19:19:05 PDT 2020; root:xnu-7195.40.84.172.1~2/RELEASE_ARM64_T8015
14.2 beta 2 Darwin Kernel Version 20.1.0: Mon Sep 21 00:08:44 PDT 2020; root:xnu-7195.40.113.0.2~22/RELEASE_ARM64_T8015
14.2 beta 3 Darwin Kernel Version 20.1.0: Wed Oct 7 00:36:56 PDT 2020; root:xnu-7195.40.141~32/RELEASE_ARM64_T8015
14.2 beta 4 Darwin Kernel Version 20.1.0: Tue Oct 13 09:52:10 PDT 2020; root:xnu-7195.40.143~17/RELEASE_ARM64_T8015
14.2 RCDarwin Kernel Version 20.1.0: Thu Oct 22 12:48:34 PDT 2020; root:xnu-7195.42.1~1/RELEASE_ARM64_T8101

Kernel Image

The kernel image base is randomized by the boot loader (iBoot). This is done by creating random data, doing a SHA-1 hash of it and then using a byte from the SHA-1 hash for the kernel slide. The slide is calculated with this formula:

base=0x01000000+(slide_byte*0x00200000)

If the slide is 0, the static offset of 0x21000000 is used instead.

The adjusted base is passed to the kernel in the boot arguments structure at offsetwhich is equivalent to gBootArgs->virtBase.

Kernel Map

The kernel map is used for kernel allocations of all types (,etc.) and spans all of kernel space (-). The kernel based maps are submaps of thefor example, etc.

The strategy is to randomize the base of the. A random 9-bit value is generated right after which establishesis multiplied by the page size. The resulting value is used as the size for the initial allocation. Future (and submap) allocations are pushed forward by a random amount. The allocation is silently removed after the first garbage collection and reused. This behaviour can be overridden with the "" boot parameter.

Attacks

allows applications to request information about kernel modules, divided into active and passive operations. Active operations (load, unload, start, stop, etc.) require root access. iOS removes the ability to load kernel extensions. Passive operations were originally (before iOS 6) unrestricted and allowed unprivileged users to query kernel module base addresses. iOS6 inadvertently removed some limitations; only the load address requests are disallowed. So attackers can use to get load addresses and mach-o header dumps. The load address and mach-o segment headers are obscured to hide the ASLR slide, but mach-o section headers are not. This reveals the virtual addresses of loaded kernel sections.

This information leak has been closed with iOS 6.0.1.

Versions codenames

Main article: List of Apple codenames § iOS

Internally, iOS identifies each version by a codename, often used internally only, normally to maintain secrecy of the project. For example, the codename for iOS 14 is Azul.

Jailbreaking

Main article: iOS jailbreaking

Since its initial release, iOS has been subject to a variety of different hacks centered around adding functionality not allowed by Apple.[191] Prior to the 2008 debut of Apple's native iOS App Store, the primary motive for jailbreaking was to bypass Apple's purchase mechanism for installing the App Store's native applications.[192] Apple claimed that it would not release iOS software updates designed specifically to break these tools (other than applications that perform SIM unlocking); however, with each subsequent iOS update, previously un-patched jailbreak exploits are usually patched.[193]

When a device is booting, it loads Apple's own kernel initially, so a jailbroken device must be exploited and have the kernel patched each time it is booted up.

There are different types of jailbreak. An untethered jailbreak FastStone Capture 9.6 Crack Registration Code Free exploits that are powerful enough to allow the user to turn their device off and back on at will, with the device starting up completely, and the kernel will be patched without the help of a computer – in other words, it will be jailbroken even after each reboot.

However, some jailbreaks are tethered. A tethered jailbreak is only able to temporarily jailbreak the device during a single boot. If the user turns the device off and then boots it back up without the help of a jailbreak tool, the device will no longer be running a patched kernel, and it may get stuck in a partially started state, such as Recovery Mode. In order for the device to start completely and with a patched kernel, it must be "re-jailbroken" with a computer (using the "boot tethered" feature of a tool) each time it is turned on. All changes to the files on the device (such as installed package files or edited system files) will persist between reboots, including changes that can only function if the device is jailbroken (such as installed package files).

In more recent years, two other solutions have been created - semi-tethered and semi-untethered.

A semi-tethered solution is one where the device is able to start up on its own, but it will no longer have a patched kernel, and therefore will not be able to run modified code. It will, however, still be usable for normal functions, just like stock iOS. To start with a patched kernel, the user must start the device with the help of the jailbreak tool.

A semi-untethered jailbreak gives the ability to start the device on its own. On first boot, the device will not be running a patched kernel. However, rather than having to run a tool from a computer to apply the kernel patches, the user is able to re-jailbreak their device with the help of an app (usually sideloaded using Cydia Impactor) running on their device. In the case of the iOS 9.2-9.3.3 jailbreak, a Safari-based exploit was available, thereby meaning a website could be used to rejailbreak.

In more detail: Each iOS device has a bootchain that tries to make sure only trusted/signed code is loaded. A device with a tethered jailbreak is able to boot up with the help of a jailbreaking tool because the tool executes exploits via USB that bypass parts of that "chain of trust", bootstrapping to a pwned (no signature check) iBSS, iBEC, or iBoot to finish the boot process.

Since the arrival of Apple's native iOS App Store, and—along with it—third-party applications, the general motives for jailbreaking have changed.[194] People jailbreak for many different reasons, including gaining filesystem access, installing custom device themes, and modifying SpringBoard. An additional motivation is that it may enable the installation of pirated apps. On some devices, jailbreaking also makes it possible to install alternative operating systems, such as Android and the Linux kernel. Primarily, users jailbreak their devices because of the limitations of iOS. Depending on the method used, the effects of jailbreaking may be permanent or temporary.[195]

In 2010, the Electronic Frontier Foundation (EFF) successfully convinced the U.S. Copyright Office to allow an exemption to the general prohibition on circumvention of copyright protection systems under the Digital Millennium Copyright Act (DMCA). The exemption allows jailbreaking of iPhones for the sole purpose of allowing legally obtained applications to be added to the iPhone.[196] The exemption does not affect the contractual relations between Apple and an iPhone owner, for example, jailbreaking voiding the iPhone warranty; however, it is solely based on Apple's discretion on whether they will fix jailbroken devices in the event that they need to be repaired. At the same time, the Copyright Office exempted unlocking an iPhone from DMCA's anticircumvention prohibitions.[197] Unlocking an iPhone allows the iPhone to be used with any wireless carrier using the same GSM or CDMA technology for which the particular phone model was designed to operate.[198]

Unlocking

Main article: SIM lock

Initially most wireless carriers in the US did not allow iPhone owners to unlock it for use with other carriers. However AT&T allowed iPhone owners who have satisfied contract requirements to unlock their iPhone.[199] Instructions to unlock the device are available from Apple,[200] but it is ultimately the sole discretion of the carrier to authorize the device to be unlocked.[201] This allows the use of a carrier-sourced iPhone on other networks. Modern versions of iOS and the iPhone fully support LTE across multiple carriers despite where the phone was originally purchased from.[202] There are programs to remove SIM lock restrictions, but are not supported by Apple and most often not a permanent unlock – a soft-unlock.[203]

A software unlock is the process by which the iPhone is modified such that the baseband will accept the SIM card of any GSM carrier. This is entirely different from a jailbreak; jailbreaking one's iPhone does not unlock it. A jailbreak is, however, required for all currently public, unofficial software unlocks.

The legality of software unlocking varies in each country; for example, in the US, there is a DMCA exemption for unofficial software unlocking, but the exemption is limited to devices purchased before January 26, 2013 (so software unlocks for newer devices are in a legal grey area).[204]

Digital rights management

The closed and proprietary nature of iOS has garnered criticism, particularly by digital rights advocates such as the Electronic Frontier Foundation, computer engineer and activist Brewster Kahle, Internet-law specialist Jonathan Zittrain, and the Free Software Foundation who protested the iPad's introductory event and have targeted the iPad with their "Defective by Design" campaign.[205][206][207][208] Competitor Microsoft, via a PR spokesman, criticized Apple's control over its platform.[209]

At issue are restrictions imposed by the design of iOS, namely digital rights management (DRM) intended to lock purchased media to Apple's platform, the development model (requiring a yearly subscription to distribute apps developed for the iOS), the centralized approval process for apps, as well as Apple's general control and lockdown of the platform itself. Particularly at issue is the ability for Apple to remotely disable or delete apps at will.

Some in the tech community have expressed concern that the locked-down iOS represents a growing trend in Apple's approach to computing, particularly Apple's shift away from machines that hobbyists can "tinker with" and note the potential for such restrictions to stifle software innovation.[210][211] Former Facebook developer Joe Hewitt protested against Apple's control over its hardware as a "horrible precedent" but praised iOS's sandboxing of apps.[212]

Security and privacy

See also: Mobile security and WARRIOR PRIDE

iOS utilizes many security features in both hardware and software. Below are summaries of the most prominent features.

Secure Boot

Before fully booting into iOS, there is low-level code that runs from the Boot ROM. Its task is to verify that the Low-Level Bootloader is signed by the Apple RootCA public key before running it. This process is to ensure that no malicious or otherwise unauthorized software can be run on an iOS device. After the Low-Level Bootloader finishes its tasks, it runs the higher level bootloader, known as iBoot. If all goes well, iBoot will then proceed to load the iOS kernel as well as the rest of the operating system.[213]

Secure Enclave

The Secure Enclave is a coprocessor found in iOS devices part of the A7 and newer chips used for data protection, Touch ID and Face ID. The purpose of the Secure Enclave is to handle keys and other info such as biometrics that is sensitive enough to not be handled by the Application Processor (AP). It is isolated with a hardware filter so the AP cannot access it. It shares RAM with the AP, but its portion of the RAM (known as TZ0) is encrypted. The secure enclave itself is a flashable 4MB AKF processor core called the secure enclave processor (SEP) as documented in Apple Patent Application 20130308838. The technology used is similar to ARM's TrustZone/SecurCore but contains proprietary code for Apple KF cores in general and SEP specifically. It is also responsible for generating the UID key on A9 or newer chips that protects user data at rest.[214]

It has its own secure boot process to ensure that it is completely secure. A hardware random number generator is also included as a part of this coprocessor. Each device's Secure Enclave has a unique ID that is given to it when it is made and cannot be changed. This identifier is used to create a temporary key that encrypts the memory in this portion of the system. The Secure Enclave also contains an anti-replay counter to prevent brute force attacks.[213]

The SEP is located in the devicetree under IODeviceTree:/arm-io/sep and managed by the AppleSEPManager driver.[215]

In 2020, security flaws in the SEP were discovered, causing concerns about Apple devices such as iPhones.[216]

Face ID

Main article: Face ID

Face ID is a face scanner that is embedded in the notch on iPhone models X, XS, XS Max, XR, 11, 11 Pro, 11 Pro Max, 12, 12 Mini, 12 Pro, and 12 Pro Max, and 13, 13 Mini, 13 Pro, and 13 Pro Max. It can be used to unlock the device, make purchases, and log into applications among other functions. When used, Face ID only temporarily stores the face data in encrypted memory in the Secure Enclave, as described below. There is no way for the device's main processor or any other part of the system to access the raw data that is obtained from the Face ID sensor.[213]

Passcode

iOS devices can have a passcode that is used to unlock the device, make changes to system settings, and encrypt the device's contents. Until recently, these were typically four numerical digits long. However, since unlocking the devices with a fingerprint by using Touch ID has become more widespread, six-digit passcodes are now the default on iOS with the option to switch back to four or use an alphanumeric passcode.[213]

Touch ID

Main article: Touch ID

Touch ID is a fingerprint scanner that is embedded in the home button and can be used to unlock the device, make purchases, and log into applications among other functions. When used, Touch ID only temporarily stores the fingerprint data in encrypted memory in the Secure Enclave, as described above. There is no way for the device's main processor or any other part of the system to access the raw fingerprint data that is obtained from the Touch ID sensor.[213]

Address Space Layout Randomization

Main article: Address Space Layout Randomization

Address Space Layout Randomization (ASLR) is a low-level technique of preventing memory corruption attacks such as buffer overflows. It involves placing data in randomly selected locations in memory in order to make it more difficult to predict ways to corrupt the system and create exploits. ASLR makes app bugs more likely to crash the app than to silently overwrite memory, regardless of whether the behavior is accidental or malicious.[217]

Non-Executable Memory

iOS utilizes the ARM architecture'sExecute Never (XN) feature. This allows some portions of the memory to be marked as non-executable, working alongside ASLR to prevent buffer overflow attacks including return-to-libc attacks.[213]

Encryption

As mentioned above, one use of encryption in iOS is in the memory of the Secure Enclave. When a passcode is utilized on an iOS device, the contents of the device are encrypted. This is done by using a hardware AES 256 implementation that is very efficient because it is placed directly between the flash storage and RAM.[213]

iOS, in combination with its specific hardware, uses crypto-shredding when erasing all content and settings by obliterating all the keys in 'effaceable storage'. This renders all user data on the device cryptographically inaccessible.[218]

Keychain

The iOS keychain is a database of login information that can be shared across apps written by the same person or organization.[213] This service is often used for storing passwords for web applications.[219]

App Security

Third-party applications such as those distributed through the App Store must be code signed with an Apple-issued certificate. In principle, this continues the chain of trust all the way from the Secure Boot process as mentioned above to the actions of the applications installed on the device by users. Applications are also sandboxed, meaning that they can only modify the data within their individual home directory unless explicitly given permission to do otherwise. For example, they cannot access data owned by other user-installed applications on the device. There is a very extensive set of privacy controls contained within iOS with options to control apps' ability to access a wide variety of permissions such as the camera, contacts, background app refresh, cellular data, and access to other data and services. Most of the code in iOS, including third-party applications, runs as the "mobile" user which does not have root privileges. This ensures that system files and other iOS system resources remain hidden and inaccessible to user-installed applications.[213]

App Store bypasses

Companies can apply to Apple for enterprise developer certificates. These can be used to sign apps such that iOS will install them directly (sometimes called "sideloading"), without the app needing to dvbviewer pro 6.1.4 crack - Activators Patch distributed via the App Store.[220] The terms under which they are granted make clear that they are only to be used for companies who wish to distribute apps directly to their employees.[220]

Circa January–February 2019, it emerged that a number of software developers were misusing enterprise developer certificates to distribute software directly to non-employees, thereby bypassing the App Store. Facebook was found to be abusing an Apple enterprise developer certificate to distribute an application to underage users that would give Facebook access to all private data on their devices.[221][222][223] Google was abusing an Apple enterprise developer certificate to distribute an app to adults to collect data from their devices, including unencrypted data belonging to third parties.[224][220] TutuApp, Panda Helper, AppValley, and TweakBox have all been abusing enterprise developer certificates to distribute apps that offer pirated software.[225]

Network Security

iOS supports TLS with both low- and high-level APIs for developers. By default, the App Transport Security framework requires that servers use at least TLS 1.2. However, developers are free to override this framework and utilize their own methods of communicating over networks. When Wi-Fi is enabled, iOS uses a randomized MAC address so that devices cannot be tracked by anyone sniffing wireless traffic.[213]

Two-Factor Authentication

Main article: Multi-factor authentication

Two-factor authentication is an option in iOS to ensure that even if an unauthorized person knows an Apple ID and password combination, they cannot gain access to the account. It works by requiring not only the Apple ID and password, but also a verification code that is sent to an iDevice or mobile phone number that is already known to be trusted.[213] If an unauthorized user attempts to sign in using another user's Apple ID, the owner of the Apple ID receives a notification that allows them to deny access to the unrecognized device.[226]

Reception

Market share

Main article: Usage share of operating systems

iOS is the second most popular mobile operating system in the world, after Android. Sales of iPads in recent years are also behind Android, while, by tenorshare com es iphone - Activators Patch use (a proxy for all use), iPads (using iOS) are still the most popular.[227]

By the middle of 2012, there were 410 million devices activated.[228] At WWDC 2014, Tim Cook said 800 million devices had been sold by June 2014.[229]

During Apple's quarterly earnings call in January 2015, the company announced that they had sold over one billion iOS devices since 2007.[230][231]

By late 2011, iOS accounted for 60% of the market share for smartphones and tablets.[232] By the end of 2014, iOS accounted for 14.8% of the smartphone market[233] and 27.6% of the tablet and two-in-one market.[234] In February 2015, StatCounter reported iOS was used on 23.18% of smartphones and 66.25% of tablets worldwide, measured by internet usage instead of sales.[235]

In the third quarter of 2015, research from Strategy Analytics showed that iOS adoption of the worldwide smartphone market was at a record low 12.1%, attributed to lackluster performance in China and Africa. Android accounted for 87.5% of the market, with Windows Phone and BlackBerry accounting for the rest.[236][237]

Devices

Main article: List of iOS devices

Источник: https://en.wikipedia.org/wiki/IOS

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Tenorshare 4uKey will unlock iPhone, iPad, and iPod Touch locked password screens. 4uKey can remove four and six-digit passcodes along with Face ID and Touch ID from your iOS device. Another locked screen that you can get rid of is the MDM log in. The Remote Management screen can be removed in one step. 

4uKey can remove Apple ID from the devices that are logged in with your account. Apple ID removal can be risky with certain iOS versions, since you can lose your personal data depending on your iOS number and whether Find My iPhone is turned on or not. A successful Apple ID removal lets you use iCloud, Music, Podcasts, etc.

While a normal factory reset requires a password or Apple ID login, Tenorshare 4uKey lets you reset your iOS products without a passcodeor Apple ID credentials. Since the complete reset can be uncertain since you risk losing data recovery, you will need to know your Apple ID information to make sure you can retrieve your personal data.

What is 4uKey?

4uKey has a simple user interface with three features available on the home screen. You can unlock your Apple ID, erase your screen time passcode, or bypass the MDM. The ‘Unlock Apple ID’ and 'Remove Screen Time Passcode’ commands deliver on-screen instructions to follow. ‘Bypass MDM’ can be done with one click.

A backup of your data is recommended before you begin. You will need to connect your iOS device to your computer or laptop with a USB cable. 4uKey will detect your device during the passcode or Apple ID removal on your iPad, iPod, or iPhone screen.

4uKey will take care of the next steps once you download the firmware that matches your Apple product. An estimated timeof a few minutes is common to see beneath the loading bar.

The device will restore to the start screen, and you will need to set upyour Apple accessory from the beginning. While a screen passcode is required after you disable Apple ID accounts, you can choose whether you want to use a passcode after you have bypassed your lock screen.

Specialized software to unlock iOS

Tenorshare 4uKey is made specifically to unlock disabled iPhone, iPad, and iPod products. You can use 4uKey to get past a numeric code, Face ID, Touch ID, Apple ID, Screen Time, and MDM lock. ReiBoot is an additional application that Tenorshare makes to address recovery mode issues, and iCareFone is another app that specializes in backing up iOS electronics.

What’s new?

The developer delivers new software updates on a regular basis. A new feature lets you get past forgotten Screen Timepasscodes. While you can use 4uKey to remove the restriction without losing data, removals can be illegal which is why Tenorshare prohibits illegalApple ID or passcode removals within business settings.

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Activation Lock for iPhone, iPad, and iPod touch

Find My includes Activation Lock—a feature that's designed to prevent anyone else from using your iPhone, tenorshare com es iphone - Activators Patch, or iPod touch, if it's ever lost or stolen. Activation Lock turns on automatically when you turn on Find My on your device.

Activation Lock helps you keep your device secure, even if it's in the wrong hands, and can improve your chances of recovering it. Even if you erase your device remotely, Activation Lock can continue to deter anyone from reactivating your device without your permission. All you need to do is keep Find My turned on, and remember your Apple ID and password. 

With watchOS 2 and later, you can use Activation Lock to protect your Apple Watch. And with macOS Catalina or later and Mac computers that have the Apple T2 Security Chip or Apple silicon you can use Activation Lock to protect your Mac, too.

Here's how it works

Each time an iPhone, iPad, iPod touch, Apple Watch, or Mac computer that has an Apple T2 security chip or Apple silicon is activated or recovered, the device contacts Apple to check whether Activation Lock is turned on. 

Activation Lock turns on automatically when you set up Find My.* After it's turned on, Apple securely stores your Apple ID on its activation servers and links it to your device. Your Apple ID password or device passcode is required before anyone can turn off Find My, erase your device, or reactivate and use your device. 

* Learn how Activation Lock works for devices enrolled in Mobile Device Management. 

If your device is lost or stolen

If you ever misplace your device—whether it’s lost or you think it might have been stolen—you should immediately use Mark As Lost in the Find My app.

Mark As Lost locks your screen with a passcode and lets you display a custom message with your phone number to help you get it back. You can also remotely erase your device if needed. Your custom message continues to display even after the device is erased.

While Activation Lock works in the background to make it more difficult for someone to use or sell your missing device, Lost Mode clearly shows anyone who finds your device that it still belongs to you and can’t be reactivated without your password.

Learn what to do if your device is lost or stolen.

If you forget your Apple ID or password

Your Apple ID is the account that you use to sign in to all Apple services. Usually, your Apple ID is your email address. If you forget it, we can help you find your Apple ID.

If you forget your password, learn how to reset your Apple ID password. 

If you can't find your Apple ID or reset your password, you'll lose access to your account and might be unable to use or reactivate your device. To help prevent this, visit your Apple ID account page periodically to review and update your account information.

Check for Activation Lock before you buy a device from someone else

Before you buy an iPhone, iPad, or iPod touch, from someone other than Apple or an Apple Authorized Reseller, make sure that the device is erased and no longer linked to the previous owner’s account.

On a device with iOS or iPadOS 15 or later that is protected by Activation Lock, you see an "iPhone Locked to Owner" screen when you turn on or wake the device. Don't take ownership of any used iPhone, iPad, or iPod touch if it's protected by Activation Lock. 

If you don't see that screen, follow these steps to check if the device is ready to use: 

  1. Turn on and unlock the device. 
  2. If the passcode Lock Screen or the Home Screen appears, the device hasn't been erased. Ask the seller to follow the steps below to completely erase the device. Don't take ownership of any used iPhone, iPad, or iPod touch until it's been erased.
  3. Begin the device setup process.
  4. If you're asked for the previous owner’s Apple ID and password, the device is still linked to their account. Hand the device back to the seller and ask them to enter their password. If the previous owner isn't present, contact them as soon as possible and ask them to use a browser to remove the device from their account. Don't take ownership of any used iPhone, iPad, or iPod touch until it has been removed from the previous owner’s account.

A device is ready for you to use when you see the Hello screen.

Before you give away your device or send it in for service

Make sure that you turn off Find My on your device before you give it away or send it in for repair. Otherwise, your device is locked and anyone that you give the device to can't use it normally and Apple technicians can't perform service repairs. Just sign out of iCloud and then erase all content and settings. This completely erases your device, removes it from your Apple ID, and turns off Find My.

In iOS or iPadOS 15

  1. Tap Settings > [your name].
  2. Scroll down and tap Sign Out. 
  3. Enter your Apple ID password and tap Turn Off.
  4. Go back to Settings.
  5. Tap Transfer or Reset [Device] > Erase All Content and Settings. 

In iOS or iPadOS 14 or earlier

  1. Tap Settings > [your name].
  2. Scroll down and tap Sign Out. 
  3. Enter your Apple ID password and tap Turn Off.
  4. Go back to Settings.
  5. Tap General > Reset > Erase All Content and Settings.

Published Date: 

Источник: https://support.apple.com/en-us/HT201365

Tenorshare Reiboot Pro 8.1.2.1 Crack With Patch Key 2021 [Win+Mac]

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Tenorshare com es iphone - Activators Patch -

iOS

Mobile operating system by Apple

This article is about the mobile operating system developed by Apple. For the router/switch OS developed by Cisco Systems, see Cisco IOS. For other uses, see IOS (disambiguation).

Not to be confused with iPadOS.

For the Greek island, see Ios.

The word "iOS" in black San Francisco neo-grotesque sans-serif font.

Commercial logo as used by Apple, since 2017

DeveloperApple Inc.
Written inC, C++, Objective-C, Swift, assembly language
OS familyUnix-like, based on Darwin (BSD), macOS
Working stateCurrent
Source modelClosed, with open-source components
Initial releaseJune 29, 2007; 14 years ago (2007-06-29)
Latest release15.1[1] (19B74)[2] (October 25, 2021; 24 days ago (2021-10-25)) [±]
Latest preview15.2 beta 3[3] (19C5044b)[4] (November 16, 2021; 2 days ago (2021-11-16)) [±]
Marketing targetSmartphones, tablet computers, portable media players
Available in40 languages[5][6][7][8]
Update methodOTA(since iOS 5), Finder (from macOS Catalina onwards)[9] or iTunes (Windows and macOS pre-Catalina)
Platforms
Kernel typeHybrid (XNU)
Default
user interface
Cocoa Touch (multi-touch, GUI)
LicenseProprietary software except for open-source components
Preceded byNewton OS
Official websitewww.apple.com/ios/
Supported
iOS version history

iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone and iPod Touch; the term also included the versions running on iPads until the name iPadOS was introduced with version 13 in 2019. It is the world's second-most widely installed mobile operating system, after Android. It is the basis for three other operating systems made by Apple: iPadOS, tvOS, and watchOS. It is proprietary software, although some parts of it are open source under the Apple Public Source License and other licenses.[10]

Unveiled in 2007 for the first-generation iPhone, iOS has since been extended to support other Apple devices such as the iPod Touch (September 2007) and the iPad (introduced: January 2010; availability: April 2010.) As of March 2018[update], Apple's App Store contains more than 2.1 million iOS applications, 1 million of which are native for iPads.[11] These mobile apps have collectively been downloaded more than 130 billion times.

Major versions of iOS are released annually. The current stable version, iOS 15, was released to the public on September 20, 2021.[12]

History

See also: iOS version history

First iOS logotype (2010–2013), using Myriad Pro Semibold font

Second iOS logotype (2013–2017), using Myriad Pro Light font

Third iOS logotype (2017–present), using San Francisco Semibold font

In 2005, when Steve Jobs began planning the iPhone, he had a choice to either "shrink the Mac, which would be an epic feat of engineering, or enlarge the iPod". Jobs favored the former approach but pitted the Macintosh and iPod teams, led by Scott Forstall and Tony Fadell, respectively, against each other in an internal competition, with Forstall winning by creating the iPhone OS. The decision enabled the success of the iPhone as a platform for third-party developers: using a well-known desktop operating system as its basis allowed the many third-party Mac developers to write software for the iPhone with minimal retraining. Forstall was also responsible for creating a software development kit for programmers to build iPhone apps, as well as an App Store within iTunes.[13][14]

The operating system was unveiled with the iPhone at the Macworld Conference & Expo on January 9, 2007, and released in June of that year.[15][16][17] At the time of its unveiling in January, Steve Jobs claimed: "iPhone runs OS X" and runs "desktop class applications",[18][19] but at the time of the iPhone's release, the operating system was renamed "iPhone OS".[20] Initially, third-party native applications were not supported. Jobs' reasoning was that developers could build web applications through the Safari web browser that "would behave like native apps on the iPhone".[21][22] In October 2007, Apple announced that a native Software Development Kit (SDK) was under development and that they planned to put it "in developers' hands in February".[23][24][25] On March 6, 2008, Apple held a press event, announcing the iPhone SDK.[26][27]

The iOS App Store was opened on July 10, 2008, with an initial 500 applications available.[28] This quickly grew to 3,000 in September 2008,[29] 15,000 in January 2009,[30] 50,000 in June 2009,[31] 100,000 in November 2009,[32][33] 250,000 in August 2010,[34][35] 650,000 in July 2012,[36] 1 million in October 2013,[37][38] 2 million in June 2016,[39][40][41] and 2.2 million in January 2017.[42][43] As of March 2016[update], 1 million apps are natively compatible with the iPad tablet computer.[44] These apps have collectively been downloaded more than 130 billion times.[39] App intelligence firm Sensor Tower has estimated that the App Store will reach 5 million apps by the year 2020.[45]

In September 2007, Apple announced the iPod Touch, a redesigned iPod based on the iPhone form factor.[46] On January 27, 2010, Apple introduced their much-anticipated media tablet, the iPad, featuring a larger screen than the iPhone and iPod Touch, and designed for web browsing, media consumption, and reading, and offering multi-touch interaction with multimedia formats including newspapers, e-books, photos, videos, music, word processing documents, video games, and most existing iPhone apps using a 9.7-inch screen.[47][48][49] It also includes a mobile version of Safari for web browsing, as well as access to the App Store, iTunes Library, iBookstore, Contacts, and Notes. Content is downloadable via Wi-Fi and optional 3G service or synced through the user's computer.[50]AT&T was initially the sole U.S. provider of 3G wireless access for the iPad.[51]

In June 2010, Apple rebranded iPhone OS as "iOS". The trademark "IOS" had been used by Cisco for over a decade for its operating system, IOS, used on its routers. To avoid any potential lawsuit, Apple licensed the "IOS" trademark from Cisco.[52]

The Apple Watchsmartwatch was announced by Tim Cook on September 9, 2014, being introduced as a product with health and fitness-tracking.[53][54] It was released on April 24, 2015.[55][56][57] It uses watchOS as operative system, which is based on IOS.

On November 22, 2016, a five-second video file originally named "IMG_0942.MP4" started crashing iOS on an increasing count of devices, forcing users to reboot. It gained massive popularity through social media channels and messaging services.[58][59]

In October 2016, Apple opened its first iOS Developer Academy in Naples inside University of Naples Federico II's new campus.[60][61] The course is completely free, aimed at acquiring specific technical skills on the creation and management of applications for the Apple ecosystem platforms.[62] At the Academy there are also issues of business administration (business planning and business management with a focus on digital opportunities) and there is a path dedicated to the design of graphical interfaces. Students have the opportunity to participate in the "Enterprise Track", an in-depth training experience on the entire life cycle of an app, from design to implementation, to security, troubleshooting, data storage and cloud usage.[63][64] As of 2020, the Academy graduated almost a thousand students from all over the world, who have worked on 400 app ideas and have already published about 50 apps on the iOS App Store. In the 2018/2019 academic year, students from more than 30 different countries arrived. 35 of these have been selected to attend the Worldwide Developer Conference, the annual Apple Developer Conference held annually in California in early June.[65][66]

Steve Jobs, Apple's then CEO, introducing the iPad.

On June 3, 2019, iPadOS, the branded version of iOS for iPad, was announced at the 2019 WWDC; it was launched on September 25, 2019.[67]

Features

Interface

The iOS user interface is based upon direct manipulation, using multi-touch gestures such as swipe, tap, pinch, and reverse pinch. Interface control elements include sliders, switches, and buttons.[68] Internal accelerometers are used by some applications to respond to shaking the device (one common result is the undo command) or rotating it in three dimensions (one common result is switching between portrait and landscape mode). Various accessibility described in § Accessibility functions enable users with vision and hearing disabilities to properly use iOS.[69]

iOS devices boot to the homescreen, the primary navigation and information "hub" on iOS devices, analogous to the desktop found on personal computers. iOS homescreens are typically made up of app icons and widgets; app icons launch the associated app, whereas widgets display live, auto-updating content, such as a weather forecast, the user's email inbox, or a news ticker directly on the homescreen.[70]

Along the top of the screen is a status bar, showing information about the device and its connectivity. The status bar itself contains two elements, the Control Center and the Notification Center. The Control Center can be "pulled" down from the top right of the notch, on the new iPhones, giving access to various toggles to manage the device more quickly without having to open the Settings. It is possible to manage brightness, volume, wireless connections, music player, etc.[71]

Instead, scrolling from the top left to the bottom will open the Notification Center, which in the latest versions of iOS is very similar to the lockscreen. It displays notifications in chronological order and groups them by application. From the notifications of some apps it is possible to interact directly, for example by replying a message directly from it. Notifications are sent in two modes, the important notifications that are displayed on the lock screen and signaled by a distinctive sound, accompanied by a warning banner and the app badge icon, and the secondary mode where they are displayed in the Notification Center, but they are not shown on the lock screen, nor are they indicated by warning banners, badge icons or sounds.[72][73]

It is possible to choose if notifications from an app can be shown on the lock screen, Notification Center, banner, or all three; whether the banner should be temporary or permanent; activate or deactivate the sound; choose whether to group by app or not and whether to show previews when locked. It is possible to turn off unwanted app notifications. Older notifications are automatically deleted after a few days.

A homescreen may be made up of several pages, between which the user can swipe back and forth, one of the ways to do this is to hold down on the "dots" shown on each page and swipe left or right.

To the right of the last page, the App Library lists and categorizes apps installed on the device. Apps within each category are arranged based on the frequency of their usage. In addition to a category for suggested apps, a "recent" category lists apps recently installed alongside App Clips recently accessed. Users can search for the app they want or browse them in alphabetical order.

iOS also integrates seamlessly with other programming frameworks and technologies, such as Apple Pay, HomeKit, HealthKit, and ResearchKit.

On iOS, the main page button is usually located at the top right. To go back in an application there is almost always a "back" button.

You can go back in 4 different ways, it varies depending on the context.

  1. Press the "Back" button at the top left of the display
  2. Swipe right from the left edge of the screen (gesture)
  3. Press the "Finish" action at the top right of the screen
  4. Scroll down on the screen content

The page title is practically always present and very visible, but it shrinks as the user scrolls down.

Navigation destinations that cannot be contained in the bottom tab bar can: be moved to a generic "More" tab or appear as actions in the top left or top right of other destinations.

Modal views are single-screen activities that are displayed by swiping into the foreground, while allowing the previous screen to peek up, retreating into the background. You can ignore them by scrolling down or tapping "Back" at the top.

Full screen views are media content such as photos or videos that take up the entire screen. They disappear on scrolling down.

Occasionally on iOS, important page actions appear on a lower toolbar.

Action menus can be activated by any button or by attempting to perform any action. They scroll from bottom to top.

On earlier iPhones with home button, screenshots can be created with the simultaneous press of the home and power buttons. In comparison to Android OS, which requires the buttons to be held down, a short press does suffice on iOS.[74] On the more recent iPhones which lack a physical home button, screenshots are captured using the volume-down and power buttons instead.[75]

The camera application used a skeuomorphistic closing camera shutter animation prior to iOS 7. Since then, it uses a simple short blackout effect.[76] Notable additions over time include HDR photography and the option to save both normal and high dynamic range photographs simultaneously where the former prevents ghosting effects from moving objects (since iPhone 5, iOS 6), automatic HDR adjustment (iOS 7.1), "live photo" with short video bundled to each photo if enabled (iPhone 6s, iOS 9), and a digital zoom shortcut (iPhone 7 Plus, iOS 10).[77][78][79] Some camera settings such as video resolution and frame rate are not adjustable through the camera interface itself, but are outsourced to the system settings.[80]

A new feature in iOS 13 called "context menus" shows related actions when you touch and hold an item. When the context menu is displayed, the background is blurred.[81]

To choose from a few options, a selection control is used. Selectors can appear anchored at the bottom or in line with the content (called date selectors). Date selectors take on the appearance of any other selection control, but with a column for day, month, and optionally year.

Alerts appear in the center of the screen, but there are also alerts that scroll up from the bottom of the screen (called "action panels"). Destructive actions (such as eliminating any element) are colored red.

The official font of iOS is San Francisco. It is designed for small text readability, and is used throughout the operating system, including third-party apps.[81]

The icons are 180x180px in size for iPhones with a larger screen, usually models over 6 inches, including iPhone 11 Pro and iPhone 8 Plus, while it's 120x120px on iPhones with smaller displays.[82]

Apple's official design language is called Human Interface.[83]

Applications

See also: App Store (iOS) and .ipa

iOS devices come with preinstalled apps developed by Apple including Mail, Maps, TV, Music, FaceTime, Wallet, Health, and many more.

Applications ("apps") are the most general form of application software that can be installed on iOS. They are downloaded from the official catalog of the App Store digital store, where apps are subjected to security checks before being made available to users. In June 2017, Apple updated its guidelines to specify that app developers will no longer have the ability to use custom prompts for encouraging users to leave reviews for their apps.[84][85] IOS applications can also be installed directly from an IPA file provided by the software distributor, via unofficial ways. They are written using iOS Software Development Kit (SDK) and, often, combined with Xcode, using officially supported programming languages, including Swift and Objective-C. Other companies have also created tools that allow for the development of native iOS apps using their respective programming languages.

Applications for iOS are mostly built using components of UIKit, a programming framework. It allows applications to have a consistent look and feel with the OS, nevertheless offering customization.

Elements automatically update along with iOS updates, automatically including new interface rules. UIKit elements are very adaptable, this allows developers to design a single app that looks the same on any iOS device. In addition to defining the iOS interface, UIKit defines the functionality of the application.

At first, Apple did not intend to release an SDK to developers, because they did not want third-party apps to be developed for iOS, building web apps instead. However, this technology never entered into common use, this led Apple to change its opinion, so in October 2007 the SDK for developers was announced, finally released on March 6, 2008.

The SDK includes an inclusive set of development tools,[86] including an audio mixer and an iPhone simulator. It is a free download for Mac users. It is not available for Microsoft Windows PCs. To test the application, get technical support, and distribute applications through App Store, developers are required to subscribe to the Apple Developer Program.

Over the years, the Apple Store apps surpassed multiple major milestones, including 50,000,[87] 100,000,[88] 250,000,[89] 500,000,[90] 1 million,[91] and 2 million apps.[92] The billionth application was installed on April 24, 2009.[93]

Home screen

Main article: SpringBoard

The home screen, rendered by SpringBoard, displays application icons and a dock at the bottom where users can pin their most frequently used apps. The home screen appears whenever the user unlocks the device or presses the physical "Home" button while in another app.[94] Before iOS 4 on the iPhone 3GS (or later), the screen's background could be customized only through jailbreaking, but can now be changed out-of-the-box. The screen has a status bar across the top to display data, such as time, battery level, and signal strength. The rest of the screen is devoted to the current application. When a passcode is set and a user switches on the device, the passcode must be entered at the Lock Screen before access to the Home screen is granted.[95]

In iPhone OS 3, Spotlight was introduced, allowing users to search media, apps, emails, contacts, messages, reminders, calendar events, and similar content. In iOS 7 and later, Spotlight is accessed by pulling down anywhere on the home screen (except for the top and bottom edges that open Notification Center and Control Center).[96][97] In iOS 9, there are two ways to access Spotlight. As with iOS 7 and 8, pulling down on any homescreen will show Spotlight. However, it can also be accessed as it was in iOS 3 – 6. This endows Spotlight with Siri suggestions, which include app suggestions, contact suggestions and news.[98] In iOS 10, Spotlight is at the top of the now-dedicated "Today" panel.[99]

Since iOS 3.2, users are able to set a background image for the Home Screen. This feature is only available on third-generation devices—iPhone 3GS, third-generation iPod touch (iOS 4.0 or newer), and all iPad models (since iOS 3.2)—or newer.

iOS 7 introduced a parallax effect on the Home Screen, which shifts the device's wallpaper and icons in response to the movement of the device, creating a 3D effect and an illusion of floating icons. This effect is also visible in the tab view of Mail and Safari.[100]

Researchers found that users organize icons on their homescreens based on usage frequency and relatedness of the applications, as well as for reasons of usability and aesthetics.[101]

System font

iOS originally used Helvetica as the system font. Apple switched to Helvetica Neue exclusively for the iPhone 4 and its Retina Display, and retained Helvetica as the system font for older iPhone devices on iOS 4.[102] With iOS 7, Apple announced that they would change the system font to Helvetica Neue Light, a decision that sparked criticism for inappropriate usage of a light, thin typeface for low-resolution mobile screens. Apple eventually chose Helvetica Neue instead.[103][104] The release of iOS 7 also introduced the ability to scale text or apply other forms of text accessibility changes through Settings.[105][106] With iOS 9, Apple changed the font to San Francisco, an Apple-designed font aimed at maximum legibility and font consistency across its product lineup.[107][108]

Folders

iOS 4 introduced folders, which can be created by dragging an application on top of another, and from then on, more items can be added to the folder using the same procedure. A title for the folder is automatically selected by the category of applications inside, but the name can also be edited by the user.[109] When apps inside folders receive notification badges, the individual numbers of notifications are added up and the total number is displayed as a notification badge on the folder itself.[109] Originally, folders on an iPhone could include up to 12 apps, while folders on iPad could include 20.[110] With increasing display sizes on newer iPhone hardware, iOS 7 updated the folders with pages similar to the home screen layout, allowing for a significant expansion of folder functionality. Each page of a folder can contain up to nine apps, and there can be 15 pages in total, allowing for a total of 135 apps in a single folder.[111] In iOS 9, Apple updated folder sizes for iPad hardware, allowing for 16 apps per page, still at 15 pages maximum, increasing the total to 240 apps.[112]

Notification Center

Main article: Notification Center

Before iOS 5, notifications were delivered in a modal window and couldn't be viewed after being dismissed. In iOS 5, Apple introduced Notification Center, which allows users to view a history of notifications. The user can tap a notification to open its corresponding app, or clear it.[113] Notifications are now delivered in banners that appear briefly at the top of the screen. If a user taps a received notification, the application that sent the notification will be opened. Users can also choose to view notifications in modal alert windows by adjusting the application's notification settings. Introduced with iOS 8, widgets are now accessible through the Notification Center, defined by 3rd parties.

When an app sends a notification while closed, a red badge appears on its icon. This badge tells the user, at a glance, how many notifications that app has sent. Opening the app clears the badge.

Accessibility

iOS offers various accessibility features to help users with vision and hearing disabilities. One major feature, VoiceOver, provides a voice reading information on the screen, including contextual buttons, icons, links and other user interface elements, and allows the user to navigate the operating system through gestures. Any apps with default controls and developed with a UIKit framework gets VoiceOver functionality built in.[114] One example includes holding up the iPhone to take a photo, with VoiceOver describing the photo scenery.[115] As part of a "Made for iPhone" program, introduced with the release of iOS 7 in 2013, Apple has developed technology to use Bluetooth and a special technology protocol to let compatible third-party equipment connect with iPhones and iPads for streaming audio directly to a user's ears. Additional customization available for Made for iPhone products include battery tracking and adjustable sound settings for different environments.[116][117] Apple made further efforts for accessibility for the release of iOS 10 in 2016, adding a new pronunciation editor to VoiceOver, adding a Magnifier setting to enlarge objects through the device's camera, software TTY support for deaf people to make phone calls from the iPhone, and giving tutorials and guidelines for third-party developers to incorporate proper accessibility functions into their apps.[118]

In 2012, Liat Kornowski from The Atlantic wrote that "the iPhone has turned out to be one of the most revolutionary developments since the invention of Braille",[119] and in 2016, Steven Aquino of TechCrunch described Apple as "leading the way in assistive technology", with Sarah Herrlinger, Senior Manager for Global Accessibility Policy and Initiatives at Apple, stating that "We see accessibility as a basic human right. Building into the core of our products supports a vision of an inclusive world where opportunity and access to information are barrier-free, empowering individuals with disabilities to achieve their goals".[120]

Criticism has been aimed at iOS depending on both internet connection (either WiFi or through iTunes) and a working SIM card upon first activation.[121] This restriction has been loosened in iOS 12, which no longer requires the latter.[122]

Multitasking

Multitasking for iOS was first released in June 2010 along with the release of iOS 4.[123][124] Only certain devices—iPhone 4, iPhone 3GS, and iPod Touch 3rd generation—were able to multitask.[125] The iPad did not get multitasking until iOS 4.2.1 in that November.[126]

The implementation of multitasking in iOS has been criticized for its approach, which limits the work that applications in the background can perform to a limited function set and requires application developers to add explicit support for it.[125][127]

Before iOS 4, multitasking was limited to a selection of the applications Apple included on the device. Users could however "jailbreak" their device in order to unofficially multitask.[128] Starting with iOS 4, on third-generation and newer iOS devices, multitasking is supported through seven background APIs:[129]

  1. Background audio – application continues to run in the background as long as it is playing audio or video content[130]
  2. Voice over IP – application is suspended when a phone call is not in progress[130]
  3. Background location – application is notified of location changes[130]
  4. Push notifications
  5. Local notifications – application schedules local notifications to be delivered at a predetermined time[130]
  6. Task completion – application asks the system for extra time to complete a given task[130]
  7. Fast app switching – application does not execute any code and may be removed from memory at any time[130]

In iOS 5, three new background APIs were introduced:

  1. Newsstand – application can download content in the background to be ready for the user[130]
  2. External Accessory – application communicates with an external accessory and shares data at regular intervals[130]
  3. Bluetooth Accessory – application communicates with a bluetooth accessory and shares data at regular intervals[130]

In iOS 7, Apple introduced a new multitasking feature, providing all apps with the ability to perform background updates. This feature prefers to update the user's most frequently used apps and prefers to use Wi-Fi networks over a cellular network, without markedly reducing the device's battery life.

Switching applications

In iOS 4.0 to iOS 6.x, double-clicking the home button activates the application switcher. A scrollable dock-style interface appears from the bottom, moving the contents of the screen up. Choosing an icon switches to an application. To the far left are icons which function as music controls, a rotation lock, and on iOS 4.2 and above, a volume controller.

With the introduction of iOS 7, double-clicking the home button also activates the application switcher. However, unlike previous versions it displays screenshots of open applications on top of the icon and horizontal scrolling allows for browsing through previous apps, and it is possible to close applications by dragging them up, similar to how WebOS handled multiple cards.[131]

With the introduction of iOS 9, the application switcher received a significant visual change; while still retaining the card metaphor introduced in iOS 7, the application icon is smaller, and appears above the screenshot (which is now larger, due to the removal of "Recent and Favorite Contacts"), and each application "card" overlaps the other, forming a rolodex effect as the user scrolls. Now, instead of the home screen appearing at the leftmost of the application switcher, it appears rightmost.[132] In iOS 11, the application switcher receives a major redesign. In the iPad, the Control Center and app switcher are combined. The app switcher in the iPad can also be accessed by swiping up from the bottom. In the iPhone, the app switcher cannot be accessed if there are no apps in the RAM.

Ending tasks

In iOS 4.0 to iOS 6.x, briefly holding the icons in the application switcher makes them "jiggle" (similarly to the homescreen) and allows the user to force quit the applications by tapping the red minus circle that appears at the corner of the app's icon.[133] Clearing applications from multitasking stayed the same from iOS 4.0 through 6.1.6, the last version of iOS 6.

As of iOS 7, the process has become faster and easier. In iOS 7, instead of holding the icons to close them, they are closed by simply swiping them upwards off the screen. Up to three apps can be cleared at a time compared to one in versions up to iOS 6.1.6.[134]

Task completion

Task completion allows apps to continue a certain task after the app has been suspended.[135][136] As of iOS 4.0, apps can request up to ten minutes to complete a task in the background.[137] This doesn't extend to background up- and downloads though (e.g. if a user starts a download in one application, it won't finish if they switch away from the application).

Siri

Main article: Siri

Siri () is an intelligent personal assistant integrated into iOS. The assistant uses voice queries and a natural language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Internet services. The software adapts to users' individual language usages, searches, and preferences, with continuing use. Returned results are individualized.

Originally released as an app for iOS in February 2010,[138] it was acquired by Apple two months later,[139][140][141] and then integrated into iPhone 4S at its release in October 2011.[142][143] At that time, the separate app was also removed from the iOS App Store.[144]

Siri supports a wide range of user commands, including performing phone actions, checking basic information, scheduling events and reminders, handling device settings, searching the Internet, navigating areas, finding information on entertainment, and is able to engage with iOS-integrated apps.[145] With the release of iOS 10 in 2016, Apple opened up limited third-party access to Siri, including third-party messaging apps, as well as payments, ride-sharing, and Internet calling apps.[146][147] With the release of iOS 11, Apple updated Siri's voices for more clear, human voices, it now supports follow-up questions and language translation, and additional third-party actions.[148][149]

Game Center

Main article: Game Center

Game Center is an onlinemultiplayer "social gaming network"[150] released by Apple.[151] It allows users to "invite friends to play a game, start a multiplayer game through matchmaking, track their achievements, and compare their high scores on a leaderboard." iOS 5 and above adds support for profile photos.[150]

Game Center was announced during an iOS 4 preview event hosted by Apple on April 8, 2010. A preview was released to registered Apple developers in August.[150] It was released on September 8, 2010, with iOS 4.1 on iPhone 4, iPhone 3GS, and iPod Touch 2nd generation through 4th generation.[152] Game Center made its public debut on the iPad with iOS 4.2.1.[153] There is no support for the iPhone 3G, original iPhone and the first-generation iPod Touch (the latter two devices did not have Game Center because they did not get iOS 4).[154] However, Game Center is unofficially available on the iPhone 3G via a hack.[155]

Hardware

The main hardware platform for iOS is the ARM architecture (the ARMv7, ARMv8-A, ARMv8.2-A, ARMv8.3-A). iOS releases before iOS 7 can only be run on iOS devices with 32-bit ARM processors (ARMv6 and ARMv7-A architectures). In 2013, iOS 7 was released with full 64-bit support (which includes a native 64-bit kernel, libraries, drivers as well as all built-in applications),[156] after Apple announced that they were switching to 64-bit ARMv8-A processors with the introduction of the Apple A7 chip.[157] 64-bit support was also enforced for all apps in the App Store; All new apps submitted to the App Store with a deadline of February 2015, and all app updates submitted to the App Store with a deadline of June 1, 2015.[158]iOS 11 drops support for all iOS devices with 32-bit ARM processors as well as 32-bit applications,[159][160] making iOS 64-bit only.[161]

Development

Main article: iOS SDK

The iOS SDK (Software Development Kit) allows for the development of mobile apps on iOS.

While originally developing iPhone prior to its unveiling in 2007, Apple's then-CEOSteve Jobs did not intend to let third-party developers build native apps for iOS, instead directing them to make web applications for the Safari web browser.[162] However, backlash from developers prompted the company to reconsider,[162] with Jobs announcing in October 2007 that Apple would have a software development kit available for developers by February 2008.[163][164] The SDK was released on March 6, 2008.[165][166]

The SDK is a free download for users of Mac personal computers.[167] It is not available for Microsoft Windows PCs.[167] The SDK contains sets giving developers access to various functions and services of iOS devices, such as hardware and software attributes.[168] It also contains an iPhone simulator to mimic the look and feel of the device on the computer while developing.[168] New versions of the SDK accompany new versions of iOS.[169][170] In order to test applications, get technical support, and distribute apps through App Store, developers are required to subscribe to the Apple Developer Program.[167]

Combined with Xcode, the iOS SDK helps developers write iOS apps using officially supported programming languages, including Swift and Objective-C.[171] Other companies have also created tools that allow for the development of native iOS apps using their respective programming languages.[172][173]

Update schedule

Main article: iOS version history

Apple provides major updates to the iOS operating system annually via iTunes and since iOS 5, also over-the-air.[175] The device checks an XML-based PLIST file on mesu.apple.com for updates. The updates are delivered in plain unencrypted ZIP files. On all recent iOS devices, iOS regularly checks on the availability of an update, and if one is available, will prompt the user to permit its automatic installation.

The latest stable version is iOS 14, released on September 16, 2020. It is available for iPhone 6S and later, and the seventh-generation iPod Touch.[176] In addition to the release of iOS 14, iPadOS 14 was released alongside iOS 14. Apple debuted iOS 14 and iPadOS 14 at its annual WWDC keynote on June 22, 2020.[177] iPadOS 14 is available on iPad Air 2 and later, iPad fifth-generation and later, iPad mini 4 and later and all versions of the iPad Pro.[178] The update introduced new features such as improved home screen widgets, the App Library, App Clips, and more.[179]

Originally, iPod Touch users had to pay for system software updates. This was due to accounting rules that designated it not a "subscription device" like iPhone or Apple TV, and improvements to the device required payments.[180][181] The requirement to pay to upgrade caused iPod Touch owners to stay away from updates.[182] However, in September 2009, a change in accounting rules won tentative approval, affecting Apple's earnings and stock price, and allowing iPod Touch updates to be delivered for free.[183][184]

Apple has significantly extended the cycle of updates for iOS supported devices over the years. The iPhone (1st generation) and iPhone 3G only received two iOS updates, while later models had support for five, six, and seven years.[185][186]

XNU kernel

The iOS kernel is the XNU kernel of Darwin. The original iPhone OS (1.0) up to iPhone OS 3.1.3 used Darwin 9.0.0d1. iOS 4 was based on Darwin 10. iOS 5 was based on Darwin 11. iOS 6 was based on Darwin 13. iOS 7 and iOS 8 are based on Darwin 14. iOS 9 is based on Darwin 15. iOS 10 is based on Darwin 16. iOS 11 is based on Darwin 17. iOS 12 is based on Darwin 18. iOS 13 is based on Darwin 19.[187]

In iOS 6 the kernel is subject to ASLR, similar to that of OS X Mountain Lion. This makes exploit possibilities more complex since it is not possible to know the location of kernel code.

Since XNU is based on the BSD kernel, it is open source.[188] The source is under a 3-clause[189] BSD license for the original BSD parts, with parts added by Apple under the Apple Public Source License.[190] The versions contained in iOS are not available; only the versions used in macOS are available.

iOS does not have kernel extensions (kexts) in the file system, even if they are actually present. The kernel cache can be decompressed to show the correct kernel, along with the kexts (all packed in the __PRELINK_TEXT section) and their plists (in the __PRELINK_INFO section).

The kernel cache can also be directly decompressed (if decrypted) using third-party tools. With the advent of iOS 10 betas and default plain text kernelcaches, these tools can only be used after unpacking and applying lzssdec to unpack the kernel cache to its full size.

The kextstat provided by the Cydia alternative software does not work on iOS because the kextstat is based on , which is a deprecated API in iOS 4 and Mac OS X Snow Leopard. There are other alternative software that can also dump raw XML data.

On developing devices, the kernel is always stored as a statically linked cache stored in /System/Library/Caches/com.apple.kernelcaches/kernelcache which is unpacked and executed at boot.

In the beginning, iOS had a kernel version usually higher than the corresponding version of macOS. Over time, the kernels of iOS and macOS have gotten closer. This is not surprising, considering that iOS introduced new features (such as the ASLR Kernel, the default freezer, and various security-strengthening features) that were first incorporated and subsequently arrived on macOS. It appears Apple is gradually merging the iOS and macOS kernels over time. The build date for each version varies slightly between processors. This is due to the fact that the builds are sequential.

The latest version of the Darwin Kernel updated to iOS 13.6 is 19.6.0, dated July 27, 2020, while for iOS 14 beta 4 it is 20.0.0, dated July 27, 2020.

Kernel Builds
iOS Version Kernel Build Notes
1A420 Darwin Kernel Version 9.0.0d1: Thu Mar 8 01:38:53 PST 2007; root:xnu-933.0.0.144.obj~1/DEVELOPMENT_ARM_S5L8900XRB
1.0 Darwin Kernel Version 9.0.0d1: Tue May 22 21:15:55 PDT 2007; root:xnu-933.0.0.178.obj~3/RELEASE_ARM_S5L8900XRB
1.0.1 Darwin Kernel Version 9.0.0d1: Fri Jun 22 00:38:56 PDT 2007; root:xnu-933.0.1.178.obj~1/RELEASE_ARM_S5L8900XRB
1.0.2
1.1 Darwin Kernel Version 9.0.0d1: Thu Sep 6 23:26:45 PDT 2007; root:xnu-933.0.0.203.obj~6/RELEASE_ARM_S5L8900XRB iPod touch only
1.1.1 Darwin Kernel Version 9.0.0d1: Wed Sep 19 00:08:42 PDT 2007; root:xnu-933.0.203~21/RELEASE_ARM_S5L8900XRB First kernel that was 8900 encrypted
1.1.2 Darwin Kernel Version 9.0.0d1: Wed Oct 10 00:07:49 PDT 2007; root:xnu-933.0.204~7/RELEASE_ARM_S5L8900XRB
1.1.3 Darwin Kernel Version 9.0.0d1: Wed Dec 12 00:16:00 PST 2007; root:xnu-933.0.211~2/RELEASE_ARM_S5L8900XRB
1.1.4
1.1.5 iPod touch only
1.2 beta ?
2.0 beta 2 Darwin Kernel Version 9.3.1: Wed Mar 19 22:40:09 PDT 2008; root:xnu-1228.6.34~1/RELEASE_ARM_S5L8900X
2.0 beta 3 Darwin Kernel Version 9.3.1: Tue Apr 1 21:58:46 PDT 2008; root:xnu-1228.6.39~6/RELEASE_ARM_S5L8900X
2.0 beta 4 Darwin Kernel Version 9.3.1: Tue Apr 15 21:09:34 PDT 2008; root:xnu-1228.6.49~1/RELEASE_ARM_S5L8900X
2.0 beta 5 ?
2.0 beta 6 ?
2.0 beta 7 ?
2.0 GMDarwin Kernel Version 9.3.1: Sun Jun 15 21:37:01 PDT 2008; root:xnu-1228.6.76~45/RELEASE_ARM_S5L8900X
2.0
2.0.1
2.0.2
2.1 beta ?
2.1 beta 2 ?
2.1 beta 3 ?
2.1 beta 4 ?
2.1 Darwin Kernel Version 9.4.1: Sun Aug 10 21:25:25 PDT 2008; root:xnu-1228.7.27~12/RELEASE_ARM_S5L8720X
2.1.1
2.2 beta ?
2.2 beta 2 ?
2.2 Darwin Kernel Version 9.4.1: Sat Nov 1 19:13:13 PDT 2008; root:xnu-1228.7.36~2/RELEASE_ARM_S5L8720X
2.2.1 Darwin Kernel Version 9.4.1: Mon Dec 8 21:02:57 PST 2008; root:xnu-1228.7.37~4/RELEASE_ARM_S5L8720X
3.0 beta Darwin Kernel Version 10.0.0d3: Mon Mar 9 22:51:44 PDT 2009; root:xnu-1357.2.65~12/RELEASE_ARM_S5L8900X
3.0 beta 2 Darwin Kernel Version 10.0.0d3: Wed Mar 25 21:56:57 PDT 2009; root:xnu-1357.2.71~2/RELEASE_ARM_S5L8900X
3.0 beta 3 Darwin Kernel Version 10.0.0d3: Fri Apr 10 15:52:33 PDT 2009; root:xnu-1357.2.78~8/RELEASE_ARM_S5L8900X
3.0 beta 4 Darwin Kernel Version 10.0.0d3: Wed Apr 22 21:48:01 PDT 2009; root:xnu-1357.2.83~2/RELEASE_ARM_S5L8900X
3.0 beta 5 Darwin Kernel Version 10.0.0d3: Wed Apr 29 22:05:19 PDT 2009; root:xnu-1357.2.86~1/RELEASE_ARM_S5L8900X
3.0 GM?
3.0 Darwin Kernel Version 10.0.0d3: Wed May 13 22:16:49 PDT 2009; root:xnu-1357.2.89~4/RELEASE_ARM_S5L8920X
3.0.1
3.1 beta Darwin Kernel Version 10.0.0d3: Wed Jun 24 21:55:27 PDT 2009; root:xnu-1357.5.22~7/RELEASE_ARM_S5L8720X
3.1 beta 2 Darwin Kernel Version 10.0.0d3: Wed Jul 8 21:57:20 PDT 2009; root:xnu-1357.5.23~8/RELEASE_ARM_S5L8920X
3.1 beta 3 Darwin Kernel Version 10.0.0d3: Wed Jul 22 21:39:52 PDT 2009; root:xnu-1357.5.24~13/RELEASE_ARM_S5L8920X
3.1 Darwin Kernel Version 10.0.0d3: Fri Aug 14 13:23:32 PDT 2009; root:xnu-1357.5.30~2/RELEASE_ARM_S5L8920X
3.1.2 Darwin Kernel Version 10.0.0d3: Fri Sep 25 23:35:35 PDT 2009; root:xnu-1357.5.30~3/RELEASE_ARM_S5L8920X
3.1.3 Darwin Kernel Version 10.0.0d3: Fri Dec 18 01:34:28 PST 2009; root:xnu-1357.5.30~6/RELEASE_ARM_S5L8920X
3.2 Darwin Kernel Version 10.3.1: Mon Mar 15 23:15:33 PDT 2010; root:xnu-1504.2.27~18/RELEASE_ARM_S5L8930X iPad only
3.2.1 Darwin Kernel Version 10.3.1: Fri May 28 16:46:17 PDT 2010; root:xnu-1504.2.50~4/RELEASE_ARM_S5L8930X
3.2.2 Darwin Kernel Version 10.3.1: Wed Aug 4 19:08:04 PDT 2010; root:xnu-1504.2.60~1/RELEASE_ARM_S5L8930X
4.0 beta Darwin Kernel Version 10.3.1: Sat Apr 3 03:06:07 PDT 2010; root:xnu-1504.51.1~2/RELEASE_ARM_S5L8920X
4.0 beta 2 Darwin Kernel Version 10.3.1: Wed Apr 14 23:43:59 PDT 2010; root:xnu-1504.50.51~3/RELEASE_ARM_S5L8920X
4.0 beta 3 Darwin Kernel Version 10.3.1: Wed Apr 28 20:47:20 PDT 2010; root:xnu-1504.50.61~1/RELEASE_ARM_S5L8920X
4.0 beta 4 Darwin Kernel Version 10.3.1: Tue May 11 22:12:23 PDT 2010; root:xnu-1504.50.69~2/RELEASE_ARM_S5L8920X
4.0 GM?
4.0 Darwin Kernel Version 10.3.1: Wed May 26 22:28:33 PDT 2010; root:xnu-1504.50.73~2/RELEASE_ARM_S5L8930X
4.0.1
4.0.2 Darwin Kernel Version 10.3.1: Wed Aug 4 18:46:06 PDT 2010; root:xnu-1504.50.80~1/RELEASE_ARM_S5L8930X
4.1 beta Darwin Kernel Version 10.3.1: Mon Jul 5 20:15:12 PDT 2010; root:xnu-1504.55.27~4/RELEASE_ARM_S5L8930X
4.1 beta 2 Darwin Kernel Version 10.3.1: Tue Jul 20 21:31:09 PDT 2010; root:xnu-1504.55.32~9/RELEASE_ARM_S5L8930X
4.1 beta 3 Darwin Kernel Version 10.3.1: Wed Jul 28 01:26:23 PDT 2010; root:xnu-1504.55.33~3/RELEASE_ARM_S5L8930X
4.1 Darwin Kernel Version 10.3.1: Wed Aug 4 22:35:51 PDT 2010; root:xnu-1504.55.33~10/RELEASE_ARM_S5L8930X
4.2 beta Darwin Kernel Version 10.3.1: Tue Sep 7 23:33:25 PDT 2010; root:xnu-1504.58.18~2/RELEASE_ARM_S5L8930X
4.2 beta 2 Darwin Kernel Version 10.4.0: Thu Sep 23 20:56:24 PDT 2010; root:xnu-1504.58.21~5/RELEASE_ARM_S5L8930X
4.2 beta 3 Darwin Kernel Version 10.4.0: Tue Oct 5 21:42:47 PDT 2010; root:xnu-1504.58.25~18/RELEASE_ARM_S5L8930X
4.2 GMDarwin Kernel Version 10.4.0: Wed Oct 20 20:14:45 PDT 2010; root:xnu-1504.58.28~3/RELEASE_ARM_S5L8930X
4.2.1 GM
4.2.1 Darwin Kernel Version 10.4.0: Wed Oct 20 20:14:45 PDT 2010; root:xnu-1504.58.28~3/RELEASE_ARM_S5L8930X
4.2.5 Darwin Kernel Version 10.4.0: Thu Dec 30 19:38:02 PST 2010; root:xnu-1504.62~11/RELEASE_ARM_S5L8930X iPhone 4 only.
4.2.6
4.2.7
4.2.8
4.2.9 Darwin Kernel Version 10.4.0: Fri Jul 8 18:32:26 PDT 2011; root:xnu-1504.63~1/RELEASE_ARM_S5L8930X
4.2.10
4.3 beta Darwin Kernel Version 11.0.0: Tue Jan 4 21:36:31 PST 2011; root:xnu-1735.24~10/RELEASE_ARM_S5L8930X
4.3 beta 2 Darwin Kernel Version 11.0.0: Mon Jan 10 22:08:15 PST 2011; root:xnu-1735.30~2/RELEASE_ARM_S5L8930X
4.3 beta 3 Darwin Kernel Version 11.0.0: Fri Jan 28 13:55:49 PST 2011; root:xnu-1735.39.80~1/RELEASE_ARM_S5L8930X
4.3 GM?
4.3 Darwin Kernel Version 11.0.0: Thu Feb 10 21:46:56 PST 2011; root:xnu-1735.46~2/RELEASE_ARM_S5L8930X
4.3.1
4.3.2 Darwin Kernel Version 11.0.0: Wed Mar 30 18:51:10 PDT 2011; root:xnu-1735.46~10/RELEASE_ARM_S5L8930X
4.3.3
4.3.4 Darwin Kernel Version 11.0.0: Sat Jul 9 00:59:43 PDT 2011; root:xnu-1735.47~1/RELEASE_ARM_S5L8930X
4.3.5
5.0 beta Darwin Kernel Version 11.0.0: Mon May 30 20:28:35 PDT 2011; root:xnu-1878.2.52~1/RELEASE_ARM_S5L8940X
5.0 beta 2 Darwin Kernel Version 11.0.0: Sun Jun 19 18:59:56 PDT 2011; root:xnu-1878.3.20~3/RELEASE_ARM_S5L8940X
5.0 beta 3 Darwin Kernel Version 11.0.0: Thu Jun 30 23:23:57 PDT 2011; root:xnu-1878.4.10~2/RELEASE_ARM_S5L8940X
5.0 beta 4 Darwin Kernel Version 11.0.0: Sun Jul 17 19:21:53 PDT 2011; root:xnu-1878.4.20~4/RELEASE_ARM_S5L8940X
5.0 beta 5 Darwin Kernel Version 11.0.0: Tue Aug 2 22:31:30 PDT 2011; root:xnu-1878.4.80~1/RELEASE_ARM_S5L8930X
5.0 beta 6 Darwin Kernel Version 11.0.0: Sun Aug 14 19:04:49 PDT 2011; root:xnu-1878.4.31~5/RELEASE_ARM_S5L8930X
5.0 beta 7 Darwin Kernel Version 11.0.0: Thu Aug 25 20:47:50 PDT 2011; root:xnu-1878.4.38~2/RELEASE_ARM_S5L8930X
5.0 GMDarwin Kernel Version 11.0.0: Thu Sep 15 23:34:16 PDT 2011; root:xnu-1878.4.43~2/RELEASE_ARM_S5L8930X
5.0
5.0.1 beta Darwin Kernel Version 11.0.0: Wed Oct 19 19:05:07 PDT 2011; root:xnu-1878.4.45~1/RELEASE_ARM_S5L8930X
5.0.1 beta 2 Darwin Kernel Version 11.0.0: Tue Nov 1 20:34:16 PDT 2011; root:xnu-1878.4.46~1/RELEASE_ARM_S5L8940X
5.0.1
5.1 beta Darwin Kernel Version 11.0.0: Sun Nov 13 19:10:13 PST 2011; root:xnu-1878.10.61~7/RELEASE_ARM_S5L8930X
5.1 beta 2 Darwin Kernel Version 11.0.0: Sun Dec 4 18:57:33 PST 2011; root:xnu-1878.10.68~2/RELEASE_ARM_S5L8930X
5.1 beta 3 Darwin Kernel Version 11.0.0: Mon Jan 2 18:46:01 PST 2012; root:xnu-1878.10.74~3/RELEASE_ARM_S5L8930X
5.1 Darwin Kernel Version 11.0.0: Wed Feb 1 23:18:07 PST 2012; root:xnu-1878.11.8~1/RELEASE_ARM_S5L8945X
5.1.1 Darwin Kernel Version 11.0.0: Sun Apr 8 21:51:26 PDT 2012; root:xnu-1878.11.10~1/RELEASE_ARM_S5L8930X
6.0 beta Darwin Kernel Version 13.0.0: Wed May 30 19:23:03 PDT 2012; root:xnu-2107.1.78~18/RELEASE_ARM_S5L8930X
6.0 beta 2 Darwin Kernel Version 13.0.0: Sun Jun 17 19:47:47 PDT 2012; root:xnu-2107.1.61~3/RELEASE_ARM_S5L8930X
6.0 beta 3 Darwin Kernel Version 13.0.0: Sun Jul 8 20:15:17 PDT 2012; root:xnu-2107.2.9~3/RELEASE_ARM_S5L8930X
6.0 beta 4 Darwin Kernel Version 13.0.0: Sun Jul 29 20:15:28 PDT 2012; root:xnu-2107.2.26~4/RELEASE_ARM_S5L8930X
6.0 GMDarwin Kernel Version 13.0.0: Sun Aug 19 00:27:34 PDT 2012; root:xnu-2107.2.33~4/RELEASE_ARM_S5L8930X
6.0
6.0.1 Darwin Kernel Version 13.0.0: Wed Oct 10 23:32:19 PDT 2012; root:xnu-2107.2.34~2/RELEASE_ARM_S5L8950X
6.0.2 iPhone 5 only.
6.1 beta Darwin Kernel Version 13.0.0: Sun Oct 21 19:28:43 PDT 2012; root:xnu-2107.7.51~17/RELEASE_ARM_S5L8930X
6.1 beta 2 Darwin Kernel Version 13.0.0: Sun Nov 4 19:02:54 PST 2012; root:xnu-2107.7.53~2/RELEASE_ARM_S5L8930X
6.1 beta 3 Darwin Kernel Version 13.0.0: Mon Nov 26 21:17:13 PST 2012; root:xnu-2107.7.53~27/RELEASE_ARM_S5L8930X
6.1 beta 4 Darwin Kernel Version 13.0.0: Sun Dec 9 19:22:45 PST 2012; root:xnu-2107.7.55~6/RELEASE_ARM_S5L8930X
6.1 beta 5 Darwin Kernel Version 13.0.0: Sun Dec 16 20:01:39 PST 2012; root:xnu-2107.7.55~11/RELEASE_ARM_S5L8950X
6.1
6.1.1 beta
6.1.1 iPhone 4s only
6.1.2
6.1.3 beta 2 Darwin Kernel Version 13.0.0: Wed Feb 13 21:35:42 PST 2013; root:xnu-2107.7.55.2.2~1/RELEASE_ARM_S5L8920X
6.1.3
6.1.4 iPhone 5 only.
6.1.5 iPod touch (4th generation) only.
6.1.6 iPod touch (4th generation) and iPhone 3GS only.
7.0 beta Darwin Kernel Version 14.0.0: Wed May 29 23:53:59 PDT 2013; root:xnu-2423.1.1.1.2~1/RELEASE_ARM_S5L8930X
7.0 beta 2 Darwin Kernel Version 14.0.0: Mon Jun 17 00:51:51 PDT 2013; root:xnu-2423.1.28~7/RELEASE_ARM_S5L8930X
7.0 beta 3 Darwin Kernel Version 14.0.0: Mon Jul 1 04:25:28 PDT 2013; root:xnu-2423.1.40~11/RELEASE_ARM_S5L8930X
7.0 beta 4 Darwin Kernel Version 14.0.0: Mon Jul 22 02:12:11 PDT 2013; root:xnu-2423.1.55~8/RELEASE_ARM_S5L8930X
7.0 beta 5 Darwin Kernel Version 14.0.0: Sun Aug 4 22:40:14 PDT 2013; root:xnu-2423.1.70~6/RELEASE_ARM_S5L8930X
7.0 beta 6
7.0 GMDarwin Kernel Version 14.0.0: Tue Aug 13 21:39:05 PDT 2013; root:xnu-2423.1.73~3/RELEASE_ARM_S5L8930X
7.0
7.0.1 Darwin Kernel Version 14.0.0: Mon Sep 9 20:56:02 PDT 2013; root:xnu-2423.1.74~2/RELEASE_ARM64_S5L8960X iPhone 5c and 5s only
7.0.2
7.0.3 Darwin Kernel Version 14.0.0: Fri Sep 27 23:08:32 PDT 2013; root:xnu-2423.3.12~1/RELEASE_ARM64_S5L8960X
7.0.4
7.0.5 iPhone 5c and iPhone 5s only.
7.0.6
7.1 beta Darwin Kernel Version 14.0.0: Mon Nov 11 04:18:01 PST 2013; root:xnu-2423.10.33~9/RELEASE_ARM_S5L8930X
7.1 beta 2 Darwin Kernel Version 14.0.0: Tue Dec 10 21:25:34 PST 2013; root:xnu-2423.10.38.1.1~1/RELEASE_ARM_S5L8930X
7.1 beta 3 Darwin Kernel Version 14.0.0: Thu Jan 2 01:55:45 PST 2014; root:xnu-2423.10.45~5/RELEASE_ARM_S5L8930X
7.1 beta 4 Darwin Kernel Version 14.0.0: Mon Jan 13 03:33:00 PST 2014; root:xnu-2423.10.49.0.1~3/RELEASE_ARM_S5L8930X
7.1 beta 5 Darwin Kernel Version 14.0.0: Mon Jan 27 23:55:13 PST 2014; root:xnu-2423.10.58~2/RELEASE_ARM_S5L8930X
7.1 GMDarwin Kernel Version 14.0.0: Fri Feb 21 19:41:10 PST 2014; root:xnu-2423.10.67~1/RELEASE_ARM_S5L8930X
7.1
7.1.1 Darwin Kernel Version 14.0.0: Fri Mar 28 21:22:10 PDT 2014; root:xnu-2423.10.70~1/RELEASE_ARM_S5L8930X
7.1.2 Darwin Kernel Version 14.0.0: Thu May 15 23:17:54 PDT 2014; root:xnu-2423.10.71~1/RELEASE_ARM64_S5L8960X
8.0 beta Darwin Kernel Version 14.0.0: Mon May 26 22:09:06 PDT 2014; root:xnu-2729.0.0.0.9~2/RELEASE_ARM_S5L8942X
8.0 beta 2 Darwin Kernel Version 14.0.0: Sat Jun 14 16:36:40 PDT 2014; root:xnu-2775.0.0.1.1~3/RELEASE_ARM64_S5L8960X
8.0 beta 3 Darwin Kernel Version 14.0.0: Wed Jul 2 18:51:34 PDT 2014; root:xnu-2783.1.21~19/RELEASE_ARM_S5L8950X
8.0 beta 4 Darwin Kernel Version 14.0.0: Wed Jul 16 21:55:26 PDT 2014; root:xnu-2783.1.40.0.3~2/RELEASE_ARM_S5L8950X
8.0 beta 5 Darwin Kernel Version 14.0.0: Wed Jul 30 23:04:17 PDT 2014; root:xnu-2783.1.62~20/RELEASE_ARM_S5L8950X
8.0 GMDarwin Kernel Version 14.0.0: Tue Aug 19 15:09:47 PDT 2014; root:xnu-2783.1.72~8/RELEASE_ARM64_S5L8960X
8.0
8.0.1 Darwin Kernel Version 14.0.0: Thu Sep 18 21:52:21 PDT 2014; root:xnu-2783.1.72~23/RELEASE_ARM_S5L8950X
8.0.2
8.1 beta Darwin Kernel Version 14.0.0: Sat Sep 27 18:49:49 PDT 2014; root:xnu-2783.3.12~18/RELEASE_ARM_S5L8950X
8.1 beta 2 Darwin Kernel Version 14.0.0: Fri Oct 3 21:52:09 PDT 2014; root:xnu-2783.3.13~2/RELEASE_ARM_S5L8950X
8.1 Darwin Kernel Version 14.0.0: Fri Oct 7 00:04:37 PDT 2014; root:xnu-2783.3.13~4/RELEASE_ARM_S5L8950X
8.1.1 beta Darwin Kernel Version 14.0.0: Sun Nov 2 20:21:29 PDT 2014; root:xnu-2783.3.21~1/RELEASE_ARM_S5L8950X
8.1.1 Darwin Kernel Version 14.0.0: Mon Nov 3 22:54:30 PDT 2014; root:xnu-2783.3.22~1/RELEASE_ARM_S5L8950X
8.1.2
8.1.3 Darwin Kernel Version 14.0.0: Mon Jan 2 21:29:20 PST 2015; root:xnu-2783.3.26~3/RELEASE_ARM_S5L8950X
8.2 beta ?
8.2 beta 2 ?
8.2 beta 3 Darwin Kernel Version 14.0.0: Sun Dec 14 20:59:15 PST 2014; root:xnu-2783.5.29.0.1~1/RELEASE_ARM_S5L8940X
8.2 beta 4 Darwin Kernel Version 14.0.0: Tue Jan 6 21:02:10 PST 2015; root:xnu-2783.5.32~9/RELEASE_ARM_S5L8940X
8.2 beta 5 Darwin Kernel Version 14.0.0: Mon Jan 26 22:16:17 PST 2015; root:xnu-2783.5.37~11/RELEASE_ARM_S5L8940X
8.2 Darwin Kernel Version 14.0.0: Mon Feb 9 22:07:57 PST 2015; root:xnu-2783.5.38~5/RELEASE_ARM_S5L8950X
8.3 beta ?
8.3 beta 2 ?
8.3 beta 3 Darwin Kernel Version 14.0.0: Mon Mar 4 20:55:58 PST 2015; root:xnu-2784.20.25~26/RELEASE_ARM64_S5L8960X
8.3 beta 4 Darwin Kernel Version 14.0.0: Thu Mar 19 00:16:36 PST 2015; root:xnu-2784.20.31~1/RELEASE_ARM64_S5L8960X
8.3 Darwin Kernel Version 14.0.0: Sun Mar 29 19:44:04 PDT 2015; root:xnu-2784.20.34~2/RELEASE_ARM_S5L8950X
8.4 beta Darwin Kernel Version 14.0.0: Wed Apr 8 21:26:37 PDT 2015; root:xnu-2784.30.1~29/RELEASE_ARM64_T7000
8.4 beta 2 Darwin Kernel Version 14.0.0: Wed Apr 21 21:49:05 PDT 2015; root:xnu-2784.30.2~9/RELEASE_ARM64_S5L8960X
8.4 beta 3 Darwin Kernel Version 14.0.0: Tue May 5 23:09:22 PDT 2015; root:xnu-2784.30.5~7/RELEASE_ARM64_S5L8960X
8.4 beta 4 Darwin Kernel Version 14.0.0: Tue Wed 3 23:19:49 PDT 2015; root:xnu-2784.30.7~13/RELEASE_ARM64_S5L8960X
8.4 Darwin Kernel Version 14.0.0: Wed Jun 24 00:50:15 PDT 2015; root:xnu-2784.30.7~30/RELEASE_ARM64_S5L8960X
8.4.1 beta Darwin Kernel Version 14.0.0: Thu Jul 9 21:54:11 PDT 2015; root:xnu-2784.40.6~1/RELEASE_ARM_S5L8950X
8.4.1 beta 2 Darwin Kernel Version 14.0.0: Tue Jul 28 16:34:51 PDT 2015; root:xnu-2784.40.6~15/RELEASE_ARM_S5L8950X
8.4.1 Darwin Kernel Version 14.0.0: Wed Aug 5 19:24:44 PDT 2015; root:xnu-2784.40.6~18/RELEASE_ARM_S5L8950X
9.0 beta Darwin Kernel Version 15.0.0: Fri May 29 22:14:48 PDT 2015; root:xnu-3216.0.0.1.15~2/RELEASE_ARM64_S5L8960X
9.0 beta 2 Darwin Kernel Version 15.0.0: Mon Jun 15 21:51:54 PDT 2015; root:xnu-3247.1.6.1.1~2/RELEASE_ARM64_S5L8960X
9.0 beta 4 Darwin Kernel Version 15.0.0: Sat Jul 11 20:01:45 PDT 2015; root:xnu-3247.1.56~13\/RELEASE_ARM64_T7001
9.0 beta 5 Darwin Kernel Version 15.0.0: Mon Aug 3 19:58:41 PDT 2015; root:xnu-3247.1.88.1.1~1\/RELEASE_ARM64_T7001
9.0 GMDarwin Kernel Version 15.0.0: Thu Aug 6 22:27:22 PDT 2015; root:xnu-3248.1.2~3\/RELEASE_ARM_S5L8940X
9.0 Darwin Kernel Version 15.0.0: Thu Aug 20 13:11:13 PDT 2015; root:xnu-3248.1.3~1\/RELEASE_ARM_S5L8950X
9.0.1
9.0.2
9.1 beta Darwin Kernel Version 15.0.0: Sat Aug 29 17:41:04 PDT 2015; root:xnu-3248.10.27~10\/RELEASE_ARM_S5L8940X
9.1 beta 2 Darwin Kernel Version 15.0.0: Mon Sep 14 01:24:55 PDT 2015; root:xnu-3248.10.38~3\/RELEASE_ARM64_S5L8960X
9.1 beta 3 Darwin Kernel Version 15.0.0: Fri Sep 25 17:14:21 PDT 2015; root:xnu-3248.10.41~11\/RELEASE_ARM64_S5L8960X
9.1 beta 4 Darwin Kernel Version 15.0.0: Fri Oct 2 14:07:07 PDT 2015; root:xnu-3248.10.42~4\/RELEASE_ARM64_S5L8960X
9.1 beta 5
9.1
9.2 beta Darwin Kernel Version 15.0.0: Sun Oct 18 23:34:30 PDT 2015; root:xnu-3248.20.33.0.1~7\/RELEASE_ARM64_S8000
9.2 beta 2 Darwin Kernel Version 15.0.0: Sun Oct 25 21:50:56 PDT 2015; root:xnu-3248.20.39~8\/RELEASE_ARM64_S8000
9.2 beta 3 Darwin Kernel Version 15.0.0: Fri Nov 6 22:12:13 PST 2015; root:xnu-3248.21.1~2\/RELEASE_ARM64_S5L8960X
9.2 beta 4 Darwin Kernel Version 15.0.0: Fri Nov 13 16:08:07 PST 2015; root:xnu-3248.21.2~1\/RELEASE_ARM64_S5L8960X
9.2
9.2.1 beta Darwin Kernel Version 15.0.0: Wed Dec 9 22:19:38 PST 2015; root:xnu-3248.31.3~2\/RELEASE_ARM64_S5L8960X
9.2.1 beta 2
9.2.1
9.3 beta Darwin Kernel Version 15.4.0: Tue Jan 5 21:24:25 PST 2016; root:xnu-3248.40.155.1.1~3\/RELEASE_ARM64_S5L8960X
9.3 beta 1.1
9.3 beta 2 Darwin Kernel Version 15.4.0: Tue Jan 19 00:18:39 PST 2016; root:xnu-3248.40.166.0.1~10\/RELEASE_ARM64_S8000
9.3 beta 3 Darwin Kernel Version 15.4.0: Sun Jan 31 22:48:58 PST 2016; root:xnu-3248.40.173.0.1~13\/RELEASE_ARM64_S8000
9.3 beta 4 Darwin Kernel Version 15.4.0: Sun Feb 14 23:17:56 PST 2016; root:xnu-3248.41.3~16\/RELEASE_ARM64_S8000
9.3 beta 5 Darwin Kernel Version 15.4.0: Sun Feb 22 01:48:23 PST 2016; root:xnu-3248.41.4~36\/RELEASE_ARM64_S8000
9.3 beta 6
9.3 beta 7 Darwin Kernel Version 15.4.0: Fri Feb 19 13:54:52 PST 2016; root:xnu-3248.41.4~28\/RELEASE_ARM64_S8000
9.3
9.3.1
9.3.2 beta Darwin Kernel Version 15.5.0: Thu Mar 31 17:49:02 PDT 2016; root:xnu-3248.50.18~19\/RELEASE_ARM64_S8000
9.3.2 beta 2 Darwin Kernel Version 15.5.0: Tue Apr 5 15:12:03 PDT 2016; root:xnu-3248.50.20~12\/RELEASE_ARM64_S8000
9.3.2 beta 3 Darwin Kernel Version 15.5.0: Mon Apr 18 16:44:07 PDT 2016; root:xnu-3248.50.21~4\/RELEASE_ARM64_S8000
9.3.2 beta 4
9.3.2
9.3.3 beta Darwin Kernel Version 15.6.0: Tue May 17 19:53:27 PDT 2016; root:xnu-3248.60.3~3\/RELEASE_ARM64_S5L8960X
9.3.3 beta 2 Darwin Kernel Version 15.6.0: Tue May 31 19:52:45 PDT 2016; root:xnu-3248.60.4~1\/RELEASE_ARM64_S8000
9.3.3 beta 3 Darwin Kernel Version 15.6.0: Thu Jun 16 18:08:00 PDT 2016; root:xnu-3248.60.8~1/RELEASE_ARM_S5L8950X
9.3.3 beta 4 Darwin Kernel Version 15.6.0: Mon Jun 20 20:10:21 PDT 2016; root:xnu-3248.60.9~1/RELEASE_ARM_S5L8950X
9.3.3 beta 5
9.3.3
9.3.4
9.3.5 Darwin Kernel Version 15.6.0: Fri Aug 19 10:37:56 PDT 2016; root:xnu-3248.61.1~1\/RELEASE_ARM64_S5L8960X
9.3.6
10.0 beta Darwin Kernel Version 16.0.0: Wed May 25 21:19:24 PDT 2016; root:xnu-3705.0.0.2.3~1\/RELEASE_ARM64_S8000
10.0 beta 2 Darwin Kernel Version 16.0.0: Tue Jun 28 21:38:14 PDT 2016; root:xnu-3757~291\/RELEASE_ARM64_S8000
10.0 beta 3 Darwin Kernel Version 16.0.0: Sat Jul 9 23:57:18 PDT 2016; root:xnu-3777.0.0.0.1~28\/RELEASE_ARM64_S8000
10.0 beta 4 Darwin Kernel Version 16.0.0: Wed Jul 27 19:44:34 PDT 2016; root:xnu-3789.1.4.2.1~1\/RELEASE_ARM64_S8000
10.0 beta 5 Darwin Kernel Version 16.0.0: Fri Aug 5 22:15:30 PDT 2016; root:xnu-3789.1.24~11\/RELEASE_ARM64_S8000
10.0 beta 6 Darwin Kernel Version 16.0.0: Wed Aug 10 21:55:58 PDT 2016; root:xnu-3789.2.2~4\/RELEASE_ARM64_S8000
10.0 beta 7
10.0 beta 8
10.0 Darwin Kernel Version 16.0.0: Wed Aug 10 22:33:10 PDT 2016; root:xnu-3789.2.2~3\/RELEASE_ARM64_T8010
10.0.1 GMDarwin Kernel Version 16.0.0: Sun Aug 28 20:36:54 PDT 2016; root:xnu-3789.2.4~3\/RELEASE_ARM64_S8000
10.0.1
10.0.2
10.1 beta Darwin Kernel Version 16.1.0: Fri Sep 16 03:53:22 PDT 2016; root:xnu-3789.20.46~54\/RELEASE_ARM64_S8000
10.1 beta 2 Darwin Kernel Version 16.1.0: Thu Sep 29 21:56:12 PDT 2016; root:xnu-3789.22.3~1\/RELEASE_ARM64_S8000
10.1 beta 3
10.1 beta 4
10.1
10.1.1
10.2 beta Darwin Kernel Version 16.3.0: Sun Oct 23 20:18:32 PDT 2016; root:xnu-3789.30.76~6\/RELEASE_ARM64_S8000
10.2 beta 2 Darwin Kernel Version 16.3.0: Tue Nov 1 22:23:11 PDT 2016; root:xnu-3789.30.86~54\/RELEASE_ARM64_S8000
10.2 beta 3 Darwin Kernel Version 16.3.0: Mon Nov 7 22:58:42 PST 2016; root:xnu-3789.30.92~36\/RELEASE_ARM64_S8000
10.2 beta 4 Darwin Kernel Version 16.3.0: Mon Nov 7 19:32:10 PST 2016; root:xnu-3789.30.92~29\/RELEASE_ARM64_S8000
10.2 beta 5 Darwin Kernel Version 16.3.0: Tue Nov 29 21:40:09 PST 2016; root:xnu-3789.32.1~4\/RELEASE_ARM64_S8000
10.2 beta 6
10.2 beta 7
10.2
10.2.1 beta Darwin Kernel Version 16.3.0: Thu Dec 1 19:49:21 PST 2016; root:xnu-3789.42.1~1\/RELEASE_ARM64_S8000
10.2.1 beta 2 Darwin Kernel Version 16.3.0: Thu Dec 15 22:41:46 PST 2016; root:xnu-3789.42.2~1\/RELEASE_ARM64_S8000
10.2.1 beta 3
10.2.1 beta 4
10.2.1
10.3 beta Darwin Kernel Version 16.5.0: Mon Jan 16 21:43:53 PST 2017; root:xnu-3789.50.189~28\/RELEASE_ARM64_T8010
10.3 beta 2 Kernel Version 16.5.0: Tue Jan 31 21:09:24 PST 2017; root:xnu-3789.50.195.1.1~2/RELEASE_ARM_S5L8950X
10.3 beta 3 Darwin Kernel Version 16.5.0: Fri Feb 10 22:11:20 PST 2017; root:xnu-3789.50.208~47/RELEASE_ARM_S5L8950X
10.3 beta 4 Darwin Kernel Version 16.5.0: Thu Feb 23 23:48:09 PST 2017; root:xnu-3789.52.2~9\/RELEASE_ARM64_S8000
10.3 beta 5
10.3 beta 6
10.3 beta 7
10.3 Darwin Kernel Version 16.5.0: Thu Feb 23 23:22:54 PST 2017; root:xnu-3789.52.2~7\/RELEASE_ARM64_S8000
10.3.1
10.3.2 beta Darwin Kernel Version 16.6.0: Mon Mar 20 22:28:31 PDT 2017; root:xnu-3789.60.12~10\/RELEASE_ARM64_S8000
10.3.2 beta 2 Darwin Kernel Version 16.6.0: Tue Apr 4 21:19:08 PDT 2017; root:xnu-3789.60.15~13\/RELEASE_ARM64_S8000
10.3.2 beta 3 Darwin Kernel Version 16.6.0: Tue Apr 11 22:03:42 PDT 2017; root:xnu-3789.60.20~11\/RELEASE_ARM64_S8000
10.3.2 beta 4 Darwin Kernel Version 16.6.0: Mon Apr 17 20:33:39 PDT 2017; root:xnu-3789.60.24~25/RELEASE_ARM64_S8000
10.3.2 beta 5
10.3.2 Darwin Kernel Version 16.6.0: Mon Apr 17 17:33:34 PDT 2017; root:xnu-3789.60.24~24/RELEASE_ARM_S8000
10.3.3 beta Darwin Kernel Version 16.7.0: Mon May 8 21:45:24 PDT 2017; root:xnu-3789.70.9~13/RELEASE_ARM64_T7000
10.3.3 beta 2 Darwin Kernel Version 16.7.0: Wed May 24 22:28:55 PDT 2017; root:xnu-3789.70.11~6/RELEASE_ARM64_S5L8960X
10.3.3 beta 3 Darwin Kernel Version 16.7.0: Tue Jun 6 21:56:23 PDT 2017; root:xnu-3789.70.15~6/RELEASE_ARM64_T8010
10.3.3 beta 4 Darwin Kernel Version 16.7.0: Thu Jun 15 22:48:15 PDT 2017; root:xnu-3789.70.16~6/RELEASE_ARM64_S8000
10.3.3 beta 5 Darwin Kernel Version 16.7.0: Thu Jun 15 22:48:16 PDT 2017; root:xnu-3789.70.16~6/RELEASE_ARM64_T8010
10.3.3 beta 6 Darwin Kernel Version 16.7.0: Thu Jun 15 18:33:36 PDT 2017; root:xnu-3789.70.16~4/RELEASE_ARM64_S8000
10.3.3
10.3.4 Darwin Kernel Version 16.7.0: Wed Jul 26 11:08:56 PDT 2017; root:xnu-3789.70.16~21/RELEASE_ARM_S5L8950X
11.0 beta Darwin Kernel Version 17.0.0: Sat May 27 21:47:07 PDT 2017; root:xnu-4397.0.0.2.4~1/RELEASE_ARM64_S8000
11.0 beta 2 Darwin Kernel Version 17.0.0: Tue Jun 13 21:19:50 PDT 2017; root:xnu-4481.0.0.2.1~1/RELEASE_ARM64_S8000
11.0 beta 3 Darwin Kernel Version 17.0.0: Thu Jun 29 22:31:39 PDT 2017; root:xnu-4532.0.0.0.1~30/RELEASE_ARM64_T7000
11.0 beta 4 Darwin Kernel Version 17.0.0: Thu Jul 20 19:49:59 PDT 2017; root:xnu-4556.0.0.2.5~1/RELEASE_ARM64_S5L8960X
11.0 beta 5 Darwin Kernel Version 17.0.0: Tue Aug 1 21:11:37 PDT 2017; root:xnu-4570.1.24.2.3~1/RELEASE_ARM64_T8010
11.0 beta 6 Darwin Kernel Version 17.0.0: Wed Aug 9 22:41:48 PDT 2017; root:xnu-4570.2.3~8/RELEASE_ARM64_T8010
11.0 beta 7 Darwin Kernel Version 17.0.0: Fri Aug 18 20:14:27 PDT 2017; root:xnu-4570.2.5~84/RELEASE_ARM64_T8010
11.0 beta 8
11.0 beta 9
11.0 beta 10
11.0 GMDarwin Kernel Version 17.0.0: Fri Sep 1 14:59:17 PDT 2017; root:xnu-4570.2.5~167/RELEASE_ARM64_S8000
11.0
11.0.1
11.0.2
11.0.3
11.1 beta Darwin Kernel Version 17.2.0: Sun Sep 17 22:21:07 PDT 2017; root:xnu-4570.20.55~10/RELEASE_ARM64_T8015
11.1 beta 2 Darwin Kernel Version 17.2.0: Sat Sep 30 23:14:15 PDT 2017; root:xnu-4570.20.62~9/RELEASE_ARM64_T8015
11.1 beta 3
11.1 beta 4 Darwin Kernel Version 17.2.0: Fri Sep 29 18:14:51 PDT 2017; root:xnu-4570.20.62~4/RELEASE_ARM64_T8015
11.1 beta 5
11.1
11.1.1
11.1.2
11.2 beta Darwin Kernel Version 17.3.0: Wed Oct 25 19:27:20 PDT 2017; root:xnu-4570.30.79~22/RELEASE_ARM64_T8015
11.2 beta 2 Darwin Kernel Version 17.3.0: Sun Oct 29 17:18:38 PDT 2017; root:xnu-4570.30.85~18/RELEASE_ARM64_T8015
11.2 beta 3 Darwin Kernel Version 17.3.0: Mon Nov 6 22:29:20 PST 2017; root:xnu-4570.32.1~2/RELEASE_ARM64_T8015
11.2 beta 4
11.2 beta 5
11.2 beta 6 Darwin Kernel Version 17.3.0: Mon Nov 6 21:19:16 PST 2017; root:xnu-4570.32.1~1/RELEASE_ARM64_T8015
11.2
11.2.1
11.2.2
11.2.5 beta Darwin Kernel Version 17.4.0: Sat Dec 2 21:26:33 PST 2017; root:xnu-4570.40.6~8/RELEASE_ARM64_T8015
11.2.5 beta 2 Darwin Kernel Version 17.4.0: Wed Dec 13 22:51:57 PST 2017; root:xnu-4570.40.9~7/RELEASE_ARM64_T8015
11.2.5 beta 3
11.2.5 beta 4
11.2.5 beta 5
11.2.5 beta 6
11.2.5 beta 7 Darwin Kernel Version 17.4.0: Fri Dec 8 19:35:51 PST 2017; root:xnu-4570.40.9~1/RELEASE_ARM64_T8015
11.2.5
11.2.6
11.3 beta Darwin Kernel Version 17.5.0: Sat Jan 13 00:03:04 PST 2018; root:xnu-4570.50.243~9/RELEASE_ARM64_T8015
11.3 beta 2 Darwin Kernel Version 17.5.0: Fri Jan 26 22:56:33 PST 2018; root:xnu-4570.50.257~6/RELEASE_ARM64_T8015
11.3 beta 3 Darwin Kernel Version 17.5.0: Sat Feb 10 17:01:35 PST 2018; root:xnu-4570.50.279~9/RELEASE_ARM64_T8015
11.3 beta 4 Darwin Kernel Version 17.5.0: Sat Feb 24 20:24:10 PST 2018; root:xnu-4570.50.294~5/RELEASE_ARM64_T8015
11.3 beta 5 Darwin Kernel Version 17.5.0: Tue Mar 6 20:47:58 PST 2018; root:xnu-4570.52.2~3/RELEASE_ARM64_T8015
11.3 beta 6
11.3 Darwin Kernel Version 17.5.0: Tue Mar 13 21:32:11 PDT 2018; root:xnu-4570.52.2~8/RELEASE_ARM64_T8010
11.3.1
11.4 beta Darwin Kernel Version 17.5.0: Sun Mar 25 20:49:19 PDT 2018; root:xnu-4570.60.10.0.1~16/RELEASE_ARM64_T8015
11.4 beta 2 Darwin Kernel Version 17.6.0: Thu Apr 5 22:33:56 PDT 2018; root:xnu-4570.60.16~9/RELEASE_ARM64_T8015
11.4 beta 3 Darwin Kernel Version 17.6.0: Sun Apr 22 03:29:53 PDT 2018; root:xnu-4570.60.19~25/RELEASE_ARM64_T8015
11.4 beta 4 Darwin Kernel Version 17.6.0: Tue May 1 16:16:12 PDT 2018; root:xnu-4570.60.21~7/RELEASE_ARM64_T8015
11.4 beta 5
11.4 beta 6
11.4 Darwin Kernel Version 17.6.0: Mon Apr 30 18:48:32 PDT 2018; root:xnu-4570.60.21~3/RELEASE_ARM64_T8015
11.4.1 beta Darwin Kernel Version 17.7.0: Mon May 21 19:02:13 PDT 2018; root:xnu-4570.70.14~16/RELEASE_ARM64_T8015
11.4.1 beta 2 Darwin Kernel Version 17.7.0: Sun Jun 3 20:38:12 PDT 2018; root:xnu-4570.70.19~13/RELEASE_ARM64_T8015
11.4.1 beta 3 Darwin Kernel Version 17.7.0: Tue Jun 12 20:37:30 PDT 2018; root:xnu-4570.70.24~9/RELEASE_ARM64_T8015
11.4.1 beta 4
11.4.1 beta 5
11.4.1 Darwin Kernel Version 17.7.0: Mon Jun 11 19:06:27 PDT 2018; root:xnu-4570.70.24~3/RELEASE_ARM64_T8015
12.0 beta Darwin Kernel Version 18.0.0: Fri May 25 21:25:37 PDT 2018; root:xnu-4903.200.199.12.3~1/RELEASE_ARM64_T8015
12.0 beta 2 Darwin Kernel Version 18.0.0: Wed Jun 13 21:04:46 PDT 2018; root:xnu-4903.200.249.22.3~1/RELEASE_ARM64_T8015
12.0 beta 3 Darwin Kernel Version 18.0.0: Tue Jun 26 21:06:03 PDT 2018; root:xnu-4903.200.274.32.3~1/RELEASE_ARM64_T8015
12.0 beta 4 Darwin Kernel Version 18.0.0: Mon Jul 9 21:17:19 PDT 2018; root:xnu-4903.200.304.42.1~1/RELEASE_ARM64_T8015
12.0 beta 5 Darwin Kernel Version 18.0.0: Wed Jul 25 22:51:45 PDT 2018; root:xnu-4903.200.327.52.1~1/RELEASE_ARM64_T8015
12.0 beta 6 Darwin Kernel Version 18.0.0: Wed Aug 1 21:11:01 PDT 2018; root:xnu-4903.200.342.62.3~1/RELEASE_ARM64_T8015
12.0 beta 7 Darwin Kernel Version 18.0.0: Sun Aug 5 21:44:00 PDT 2018; root:xnu-4903.200.354~11/RELEASE_ARM64_T8015
12.0 beta 8 Darwin Kernel Version 18.0.0: Fri Aug 10 21:57:57 PDT 2018; root:xnu-4903.202.1~2/RELEASE_ARM64_T8015
12.0 beta 9 Darwin Kernel Version 18.0.0: Wed Aug 15 21:51:15 PDT 2018; root:xnu-4903.202.2~2/RELEASE_ARM64_T8015
12.0 beta 10
12.0 beta 11
12.0 beta 12
12.0 GMDarwin Kernel Version 18.0.0: Tue Aug 14 22:07:16 PDT 2018; root:xnu-4903.202.2~1/RELEASE_ARM64_T8015
12.0
12.0.1
12.1 beta Darwin Kernel Version 18.2.0: Mon Sep 10 22:05:56 PDT 2018; root:xnu-4903.220.42~21/RELEASE_ARM64_T8015
12.1 beta 2 Darwin Kernel Version 18.2.0: Sun Sep 23 20:16:38 PDT 2018; root:xnu-4903.220.48~40/RELEASE_ARM64_T8015
12.1 beta 3 Darwin Kernel Version 18.2.0: Wed Oct 3 02:49:20 PDT 2018; root:xnu-4903.222.1~7/RELEASE_ARM64_T8015
12.1 beta 4 Darwin Kernel Version 18.2.0: Tue Oct 9 18:52:50 PDT 2018; root:xnu-4903.222.4~3/RELEASE_ARM64_T8015
12.1 beta 5 Darwin Kernel Version 18.2.0: Tue Oct 16 22:15:34 PDT 2018; root:xnu-4903.222.5~3/RELEASE_ARM64_T8015
12.1 Darwin Kernel Version 18.2.0: Tue Oct 16 21:02:33 PDT 2018; root:xnu-4903.222.5~1/RELEASE_ARM64_T8015
12.1.1 beta Darwin Kernel Version 18.2.0: Thu Oct 25 21:36:46 PDT 2018; root:xnu-4903.230.15~8/RELEASE_ARM64_T8015
12.1.1 beta 2 Darwin Kernel Version 18.2.0: Sat Nov 3 03:45:48 PDT 2018; root:xnu-4903.232.1~3/RELEASE_ARM64_T8015
12.1.1 beta 3 Darwin Kernel Version 18.2.0: Mon Nov 12 21:07:36 PST 2018; root:xnu-4903.232.2~2/RELEASE_ARM64_T8020
12.1.1 Darwin Kernel Version 18.2.0: Mon Nov 12 20:32:01 PST 2018; root:xnu-4903.232.2~1/RELEASE_ARM64_T8020
12.1.2 beta Darwin Kernel Version 18.2.0: Sun Dec 2 20:53:08 PST 2018; root:xnu-4903.240.8~8/RELEASE_ARM64_T8015
12.1.2 Darwin Kernel Version 18.2.0: Mon Nov 12 20:32:01 PST 2018; root:xnu-4903.232.2~1/RELEASE_ARM64_T8020
12.1.3 beta 2 Darwin Kernel Version 18.2.0: Sun Dec 16 20:44:43 PST 2018; root:xnu-4903.240.10~8/RELEASE_ARM64_T8020
12.1.3 beta 3 Darwin Kernel Version 18.2.0: Wed Dec 19 22:27:19 PST 2018; root:xnu-4903.242.2~2/RELEASE_ARM64_T8020
12.1.3 beta 4
12.1.3 Darwin Kernel Version 18.2.0: Wed Dec 19 20:28:53 PST 2018; root:xnu-4903.242.2~1/RELEASE_ARM64_T8020
12.1.4
12.2 beta Darwin Kernel Version 18.5.0: Sun Jan 13 21:01:59 PST 2019; root:xnu-4903.250.305~10/RELEASE_ARM64_T8020
12.2 beta 2 Darwin Kernel Version 18.5.0: Wed Jan 30 19:26:26 PST 2019; root:xnu-4903.250.319~58/RELEASE_ARM64_T8020
12.2 beta 3 Darwin Kernel Version 18.5.0: Sun Feb 10 20:48:56 PST 2019; root:xnu-4903.250.336.0.1~10/RELEASE_ARM64_T8020
12.2 beta 4 Darwin Kernel Version 18.5.0: Sun Feb 24 21:50:15 PST 2019; root:xnu-4903.250.349~13/RELEASE_ARM64_T8020
12.2 beta 5 Darwin Kernel Version 18.5.0: Tue Mar 5 21:34:09 PST 2019; root:xnu-4903.252.2~2/RELEASE_ARM64_T8020
12.2 beta 6
12.2 Darwin Kernel Version 18.5.0: Tue Mar 5 19:52:18 PST 2019; root:xnu-4903.252.2~1/RELEASE_ARM64_T8020
12.3 beta Darwin Kernel Version 18.6.0: Mon Mar 18 23:03:29 PDT 2019; root:xnu-4903.260.65.100.1~2/RELEASE_ARM64_T8015
12.3 beta 2 Darwin Kernel Version 18.6.0: Mon Apr 1 21:12:58 PDT 2019; root:xnu-4903.260.74.100.1~1/RELEASE_ARM64_T8020
12.3 beta 3 Darwin Kernel Version 18.6.0: Thu Apr 18 19:45:13 PDT 2019; root:xnu-4903.260.85.0.2~1/RELEASE_ARM64_T8020
12.3 beta 4 Darwin Kernel Version 18.6.0: Thu Apr 25 23:57:27 PDT 2019; root:xnu-4903.262.2~3/RELEASE_ARM64_T8015
12.3 beta 5
12.3 beta 6
12.3 Darwin Kernel Version 18.6.0: Thu Apr 25 22:14:10 PDT 2019; root:xnu-4903.262.2~2/RELEASE_ARM64_T8020
12.3.1 (12F203)
12.3.1 (12F8202) Darwin Kernel Version 18.6.0: Thu May 9 15:45:33 PDT 2019; root:xnu-4903.262.2~4/RELEASE_ARM64_T8010
12.3.2 Darwin Kernel Version 18.6.0: Thu Apr 25 22:14:08 PDT 2019; root:xnu-4903.262.2~2/RELEASE_ARM64_T8015
12.4 beta Darwin Kernel Version 18.6.0: Tue May 7 23:38:12 PDT 2019; root:xnu-4903.270.19.100.1~3/RELEASE_ARM64_T8020
12.4 beta 2
12.4 beta 3 Darwin Kernel Version 18.7.0: Tue May 21 01:53:36 PDT 2019; root:xnu-4903.270.29~10/RELEASE_ARM64_T8020
12.4 beta 4 Darwin Kernel Version 18.7.0: Wed Jun 5 21:04:51 PDT 2019; root:xnu-4903.270.37~24/RELEASE_ARM64_T8020
12.4 beta 5 Darwin Kernel Version 18.7.0: Fri Jun 14 21:12:14 PDT 2019; root:xnu-4903.270.38~24/RELEASE_ARM64_T8020
12.4 beta 6 Darwin Kernel Version 18.7.0: Tue Jun 25 22:53:57 PDT 2019; root:xnu-4903.270.47~11/RELEASE_ARM64_T8020
12.4 beta 7
12.4 Darwin Kernel Version 18.7.0: Fri Jun 21 22:24:16 PDT 2019; root:xnu-4903.270.47~7/RELEASE_ARM64_T8015
12.4.1 Darwin Kernel Version 18.7.0: Mon Aug 19 22:24:08 PDT 2019; root:xnu-4903.272.1~1/RELEASE_ARM64_T8020
12.4.2 Darwin Kernel Version 18.7.0: Mon Aug 19 22:24:08 PDT 2019; root:xnu-4903.272.1~1/RELEASE_ARM64_T7000
12.4.3
12.4.4
12.4.5
12.4.6
12.4.7
12.4.8
13.0 beta Darwin Kernel Version 19.0.0: Tue May 21 03:52:25 PDT 2019; root:xnu-6041.0.0.112.1~1/RELEASE_ARM64_T8020
13.0 beta 2 Darwin Kernel Version 19.0.0: Sun Jun 9 18:57:16 PDT 2019; root:xnu-6110.0.0.120.8~3/RELEASE_ARM64_T8020
13.0 beta 3 Darwin Kernel Version 19.0.0: Thu Jun 27 20:08:29 PDT 2019; root:xnu-6153.0.13.132.4~1/RELEASE_ARM64_T8020
13.0 beta 4 Darwin Kernel Version 19.0.0: Tue Jul 9 00:52:55 PDT 2019; root:xnu-6153.0.59.0.2~63/RELEASE_ARM64_T8020
13.0 beta 5 Darwin Kernel Version 19.0.0: Sun Jul 21 19:17:20 PDT 2019; root:xnu-6153.0.98.0.2~30/RELEASE_ARM64_T8020
13.0 beta 6 Darwin Kernel Version 19.0.0: Tue Jul 30 23:56:43 PDT 2019; root:xnu-6153.0.103.8~3/RELEASE_ARM64_T8020
13.0 beta 7 Darwin Kernel Version 19.0.0: Fri Aug 9 23:13:23 PDT 2019; root:xnu-6153.0.103.11~2/RELEASE_ARM64_T8020
13.0 beta 8 Darwin Kernel Version 19.0.0: Thu Aug 15 21:21:27 PDT 2019; root:xnu-6153.0.103.12~3/RELEASE_ARM64_T8020
13.0 GMDarwin Kernel Version 19.0.0: Mon Aug 12 20:19:35 PDT 2019; root:xnu-6153.0.103.12~1/RELEASE_ARM64_T8015
13.0
13.1 beta Darwin Kernel Version 19.0.0: Sun Aug 18 23:18:25 PDT 2019; root:xnu-6153.0.166~14/RELEASE_ARM64_T8015
13.1 beta 2 Darwin Kernel Version 19.0.0: Thu Aug 29 23:02:07 PDT 2019; root:xnu-6153.2.2~5/RELEASE_ARM64_T8020
13.1 beta 3 Darwin Kernel Version 19.0.0: Fri Sep 6 09:12:32 PDT 2019; root:xnu-6153.2.3~7/RELEASE_ARM64_T8015
13.1 beta 4
13.1 Darwin Kernel Version 19.0.0: Tue Sep 3 21:52:14 PDT 2019; root:xnu-6153.2.3~2/RELEASE_ARM64_T8030
13.1.1
13.1.2
13.1.3
13.2 beta Darwin Kernel Version 19.0.0: Sun Sep 22 21:45:32 PDT 2019; root:xnu-6153.40.121.0.1~23/RELEASE_ARM64_T8020
13.2 beta 2 Darwin Kernel Version 19.0.0: Thu Oct 3 23:49:24 PDT 2019; root:xnu-6153.40.150.100.1~1/RELEASE_ARM64_T8030
13.2 beta 3 Darwin Kernel Version 19.0.0: Fri Oct 11 02:14:05 PDT 2019; root:xnu-6153.42.1~3/RELEASE_ARM64_T8010
13.2 beta 4
13.2 Darwin Kernel Version 19.0.0: Wed Oct 9 22:42:11 PDT 2019; root:xnu-6153.42.1~1/RELEASE_ARM64_T8030
13.2.2
13.2.3
13.3 beta Darwin Kernel Version 19.2.0: Thu Oct 31 02:33:36 PDT 2019; root:xnu-6153.60.58.0.1~22/RELEASE_ARM64_T8010
13.3 beta 2 Darwin Kernel Version 19.2.0: Wed Nov 6 02:29:57 PST 2019; root:xnu-6153.60.66~54/RELEASE_ARM64_T8030
13.3 beta 3 Darwin Kernel Version 19.2.0: Tue Nov 12 22:06:16 PST 2019; root:xnu-6153.60.66~63/RELEASE_ARM64_T8030
13.3 beta 4
13.3 Darwin Kernel Version 19.2.0: Mon Nov 4 17:44:49 PST 2019; root:xnu-6153.60.66~39/RELEASE_ARM64_T8010
13.3.1 beta Darwin Kernel Version 19.3.0: Sun Dec 8 21:03:13 PST 2019; root:xnu-6153.80.8.0.1~13/RELEASE_ARM64_T8010
13.3.1 beta 2 Darwin Kernel Version 19.3.0: Thu Jan 9 22:14:53 PST 2020; root:xnu-6153.82.3~2/RELEASE_ARM64_T8010
13.3.1 beta 3
13.3.1 Darwin Kernel Version 19.3.0: Thu Jan 9 21:10:55 PST 2020; root:xnu-6153.82.3~1/RELEASE_ARM64_T8010
13.4 beta Darwin Kernel Version 19.4.0: Wed Jan 29 20:44:26 PST 2020; root:xnu-6153.100.178.100.2~4/RELEASE_ARM64_T8010
13.4 beta 2 Darwin Kernel Version 19.4.0: Tue Feb 11 21:22:30 PST 2020; root:xnu-6153.100.196~52/RELEASE_ARM64_T8010
13.4 beta 3 Darwin Kernel Version 19.4.0: Thu Feb 20 00:09:27 PST 2020; root:xnu-6153.102.2~1/RELEASE_ARM64_T8010
13.4 beta 4 Darwin Kernel Version 19.4.0: Wed Feb 26 00:59:07 PST 2020; root:xnu-6153.102.3~5/RELEASE_ARM64_T8010
13.4 beta 5 Darwin Kernel Version 19.4.0: Wed Feb 26 00:59:07 PST 2020; root:xnu-6153.102.3~5/RELEASE_ARM64_T8010
13.4 beta 6 Darwin Kernel Version 19.4.0: Mon Feb 24 22:04:12 PST 2020; root:xnu-6153.102.3~1/RELEASE_ARM64_T8010
13.4
13.4.1
13.4.5 beta Darwin Kernel Version 19.5.0: Tue Mar 24 15:35:36 PDT 2020; root:xnu-6153.120.15~29/RELEASE_ARM64_T8010
13.4.5 beta 2 Darwin Kernel Version 19.5.0: Sun Apr 5 22:05:12 PDT 2020; root:xnu-6153.120.27~19/RELEASE_ARM64_T8027
13.5 beta 3 Darwin Kernel Version 19.5.0: Sun Apr 19 23:40:03 PDT 2020; root:xnu-6153.120.31~15/RELEASE_ARM64_T8010
13.5 beta 4 Darwin Kernel Version 19.5.0: Wed Apr 29 21:33:50 PDT 2020; root:xnu-6153.122.1~2/RELEASE_ARM64_T8027
13.5 GMDarwin Kernel Version 19.5.0: Tue Apr 28 22:25:26 PDT 2020; root:xnu-6153.122.1~1/RELEASE_ARM64_T8010
13.5
13.5.1 Darwin Kernel Version 19.5.0: Tue May 26 20:56:04 PDT 2020; root:xnu-6153.122.2~1/RELEASE_ARM64_S8000
13.5.5 beta Darwin Kernel Version 19.6.0: Sun May 17 23:49:11 PDT 2020; root:xnu-6153.140.21~11/RELEASE_ARM64_T8010
13.6 beta 2 Darwin Kernel Version 19.6.0: Tue Jun 2 23:09:45 PDT 2020; root:xnu-6153.140.27.0.1~17/RELEASE_ARM64_T8010
13.6 beta 3 Darwin Kernel Version 19.6.0: Sun Jun 21 23:18:41 PDT 2020; root:xnu-6153.142.1~3/RELEASE_ARM64_T8010
13.6 GMDarwin Kernel Version 19.6.0: Sat Jun 27 04:36:25 PDT 2020; root:xnu-6153.142.1~4/RELEASE_ARM64_T8030
13.6
13.6.1
13.7 beta Darwin Kernel Version 19.6.0: Sat Jul 11 00:58:54 PDT 2020; root:xnu-6153.142.1~8/RELEASE_ARM64_T8010
14.0 beta Darwin Kernel Version 20.0.0: Thu Jun 11 21:44:34 PDT 2020; root:xnu-7090.0.0.112.4~2/RELEASE_ARM64_T8010
14.0 beta 2 Darwin Kernel Version 20.0.0: Tue Jun 30 22:45:10 PDT 2020; root:xnu-7147.0.0.122.1~2/RELEASE_ARM64_T8015
14.0 beta 3 Darwin Kernel Version 20.0.0: Mon Jul 13 22:51:19 PDT 2020; root:xnu-7168.0.0.132.1~1/RELEASE_ARM64_T8030
14.0 beta 4 Darwin Kernel Version 20.0.0: Mon Jul 27 02:44:58 PDT 2020; root:xnu-7195.0.8.0.1~21/RELEASE_ARM64_T8015
14.0 beta 5 Darwin Kernel Version 20.0.0: Wed Aug 12 22:56:55 PDT 2020; root:xnu-7195.0.33~64/RELEASE_ARM64_T8010
14.0 beta 6 Darwin Kernel Version 20.0.0: Mon Aug 17 09:09:19 PDT 2020; root:xnu-7195.0.41~15/RELEASE_ARM64_S8000
14.0 beta 7 Darwin Kernel Version 20.0.0: Wed Aug 26 23:29:06 PDT 2020; root:xnu-7195.0.46~3/RELEASE_ARM64_T8015
14.0 beta 8
14.0 GMDarwin Kernel Version 20.0.0: Fri Aug 28 23:05:58 PDT 2020; root:xnu-7195.0.46~9/RELEASE_ARM64_S8000
14.0
14.0.1
14.1 GMDarwin Kernel Version 20.0.0: Wed Sep 30 03:24:26 PDT 2020; root:xnu-7195.0.46~41/RELEASE_ARM64_T8101
14.1
14.2 beta Darwin Kernel Version 20.1.0: Fri Sep 11 19:19:05 PDT 2020; root:xnu-7195.40.84.172.1~2/RELEASE_ARM64_T8015
14.2 beta 2 Darwin Kernel Version 20.1.0: Mon Sep 21 00:08:44 PDT 2020; root:xnu-7195.40.113.0.2~22/RELEASE_ARM64_T8015
14.2 beta 3 Darwin Kernel Version 20.1.0: Wed Oct 7 00:36:56 PDT 2020; root:xnu-7195.40.141~32/RELEASE_ARM64_T8015
14.2 beta 4 Darwin Kernel Version 20.1.0: Tue Oct 13 09:52:10 PDT 2020; root:xnu-7195.40.143~17/RELEASE_ARM64_T8015
14.2 RCDarwin Kernel Version 20.1.0: Thu Oct 22 12:48:34 PDT 2020; root:xnu-7195.42.1~1/RELEASE_ARM64_T8101

Kernel Image

The kernel image base is randomized by the boot loader (iBoot). This is done by creating random data, doing a SHA-1 hash of it and then using a byte from the SHA-1 hash for the kernel slide. The slide is calculated with this formula:

base=0x01000000+(slide_byte*0x00200000)

If the slide is 0, the static offset of 0x21000000 is used instead.

The adjusted base is passed to the kernel in the boot arguments structure at offset , which is equivalent to gBootArgs->virtBase.

Kernel Map

The kernel map is used for kernel allocations of all types (, , etc.) and spans all of kernel space (-). The kernel based maps are submaps of the , for example , , etc.

The strategy is to randomize the base of the . A random 9-bit value is generated right after which establishes , is multiplied by the page size. The resulting value is used as the size for the initial allocation. Future (and submap) allocations are pushed forward by a random amount. The allocation is silently removed after the first garbage collection and reused. This behaviour can be overridden with the "" boot parameter.

Attacks

allows applications to request information about kernel modules, divided into active and passive operations. Active operations (load, unload, start, stop, etc.) require root access. iOS removes the ability to load kernel extensions. Passive operations were originally (before iOS 6) unrestricted and allowed unprivileged users to query kernel module base addresses. iOS6 inadvertently removed some limitations; only the load address requests are disallowed. So attackers can use to get load addresses and mach-o header dumps. The load address and mach-o segment headers are obscured to hide the ASLR slide, but mach-o section headers are not. This reveals the virtual addresses of loaded kernel sections.

This information leak has been closed with iOS 6.0.1.

Versions codenames

Main article: List of Apple codenames § iOS

Internally, iOS identifies each version by a codename, often used internally only, normally to maintain secrecy of the project. For example, the codename for iOS 14 is Azul.

Jailbreaking

Main article: iOS jailbreaking

Since its initial release, iOS has been subject to a variety of different hacks centered around adding functionality not allowed by Apple.[191] Prior to the 2008 debut of Apple's native iOS App Store, the primary motive for jailbreaking was to bypass Apple's purchase mechanism for installing the App Store's native applications.[192] Apple claimed that it would not release iOS software updates designed specifically to break these tools (other than applications that perform SIM unlocking); however, with each subsequent iOS update, previously un-patched jailbreak exploits are usually patched.[193]

When a device is booting, it loads Apple's own kernel initially, so a jailbroken device must be exploited and have the kernel patched each time it is booted up.

There are different types of jailbreak. An untethered jailbreak uses exploits that are powerful enough to allow the user to turn their device off and back on at will, with the device starting up completely, and the kernel will be patched without the help of a computer – in other words, it will be jailbroken even after each reboot.

However, some jailbreaks are tethered. A tethered jailbreak is only able to temporarily jailbreak the device during a single boot. If the user turns the device off and then boots it back up without the help of a jailbreak tool, the device will no longer be running a patched kernel, and it may get stuck in a partially started state, such as Recovery Mode. In order for the device to start completely and with a patched kernel, it must be "re-jailbroken" with a computer (using the "boot tethered" feature of a tool) each time it is turned on. All changes to the files on the device (such as installed package files or edited system files) will persist between reboots, including changes that can only function if the device is jailbroken (such as installed package files).

In more recent years, two other solutions have been created - semi-tethered and semi-untethered.

A semi-tethered solution is one where the device is able to start up on its own, but it will no longer have a patched kernel, and therefore will not be able to run modified code. It will, however, still be usable for normal functions, just like stock iOS. To start with a patched kernel, the user must start the device with the help of the jailbreak tool.

A semi-untethered jailbreak gives the ability to start the device on its own. On first boot, the device will not be running a patched kernel. However, rather than having to run a tool from a computer to apply the kernel patches, the user is able to re-jailbreak their device with the help of an app (usually sideloaded using Cydia Impactor) running on their device. In the case of the iOS 9.2-9.3.3 jailbreak, a Safari-based exploit was available, thereby meaning a website could be used to rejailbreak.

In more detail: Each iOS device has a bootchain that tries to make sure only trusted/signed code is loaded. A device with a tethered jailbreak is able to boot up with the help of a jailbreaking tool because the tool executes exploits via USB that bypass parts of that "chain of trust", bootstrapping to a pwned (no signature check) iBSS, iBEC, or iBoot to finish the boot process.

Since the arrival of Apple's native iOS App Store, and—along with it—third-party applications, the general motives for jailbreaking have changed.[194] People jailbreak for many different reasons, including gaining filesystem access, installing custom device themes, and modifying SpringBoard. An additional motivation is that it may enable the installation of pirated apps. On some devices, jailbreaking also makes it possible to install alternative operating systems, such as Android and the Linux kernel. Primarily, users jailbreak their devices because of the limitations of iOS. Depending on the method used, the effects of jailbreaking may be permanent or temporary.[195]

In 2010, the Electronic Frontier Foundation (EFF) successfully convinced the U.S. Copyright Office to allow an exemption to the general prohibition on circumvention of copyright protection systems under the Digital Millennium Copyright Act (DMCA). The exemption allows jailbreaking of iPhones for the sole purpose of allowing legally obtained applications to be added to the iPhone.[196] The exemption does not affect the contractual relations between Apple and an iPhone owner, for example, jailbreaking voiding the iPhone warranty; however, it is solely based on Apple's discretion on whether they will fix jailbroken devices in the event that they need to be repaired. At the same time, the Copyright Office exempted unlocking an iPhone from DMCA's anticircumvention prohibitions.[197] Unlocking an iPhone allows the iPhone to be used with any wireless carrier using the same GSM or CDMA technology for which the particular phone model was designed to operate.[198]

Unlocking

Main article: SIM lock

Initially most wireless carriers in the US did not allow iPhone owners to unlock it for use with other carriers. However AT&T allowed iPhone owners who have satisfied contract requirements to unlock their iPhone.[199] Instructions to unlock the device are available from Apple,[200] but it is ultimately the sole discretion of the carrier to authorize the device to be unlocked.[201] This allows the use of a carrier-sourced iPhone on other networks. Modern versions of iOS and the iPhone fully support LTE across multiple carriers despite where the phone was originally purchased from.[202] There are programs to remove SIM lock restrictions, but are not supported by Apple and most often not a permanent unlock – a soft-unlock.[203]

A software unlock is the process by which the iPhone is modified such that the baseband will accept the SIM card of any GSM carrier. This is entirely different from a jailbreak; jailbreaking one's iPhone does not unlock it. A jailbreak is, however, required for all currently public, unofficial software unlocks.

The legality of software unlocking varies in each country; for example, in the US, there is a DMCA exemption for unofficial software unlocking, but the exemption is limited to devices purchased before January 26, 2013 (so software unlocks for newer devices are in a legal grey area).[204]

Digital rights management

The closed and proprietary nature of iOS has garnered criticism, particularly by digital rights advocates such as the Electronic Frontier Foundation, computer engineer and activist Brewster Kahle, Internet-law specialist Jonathan Zittrain, and the Free Software Foundation who protested the iPad's introductory event and have targeted the iPad with their "Defective by Design" campaign.[205][206][207][208] Competitor Microsoft, via a PR spokesman, criticized Apple's control over its platform.[209]

At issue are restrictions imposed by the design of iOS, namely digital rights management (DRM) intended to lock purchased media to Apple's platform, the development model (requiring a yearly subscription to distribute apps developed for the iOS), the centralized approval process for apps, as well as Apple's general control and lockdown of the platform itself. Particularly at issue is the ability for Apple to remotely disable or delete apps at will.

Some in the tech community have expressed concern that the locked-down iOS represents a growing trend in Apple's approach to computing, particularly Apple's shift away from machines that hobbyists can "tinker with" and note the potential for such restrictions to stifle software innovation.[210][211] Former Facebook developer Joe Hewitt protested against Apple's control over its hardware as a "horrible precedent" but praised iOS's sandboxing of apps.[212]

Security and privacy

See also: Mobile security and WARRIOR PRIDE

iOS utilizes many security features in both hardware and software. Below are summaries of the most prominent features.

Secure Boot

Before fully booting into iOS, there is low-level code that runs from the Boot ROM. Its task is to verify that the Low-Level Bootloader is signed by the Apple RootCA public key before running it. This process is to ensure that no malicious or otherwise unauthorized software can be run on an iOS device. After the Low-Level Bootloader finishes its tasks, it runs the higher level bootloader, known as iBoot. If all goes well, iBoot will then proceed to load the iOS kernel as well as the rest of the operating system.[213]

Secure Enclave

The Secure Enclave is a coprocessor found in iOS devices part of the A7 and newer chips used for data protection, Touch ID and Face ID. The purpose of the Secure Enclave is to handle keys and other info such as biometrics that is sensitive enough to not be handled by the Application Processor (AP). It is isolated with a hardware filter so the AP cannot access it. It shares RAM with the AP, but its portion of the RAM (known as TZ0) is encrypted. The secure enclave itself is a flashable 4MB AKF processor core called the secure enclave processor (SEP) as documented in Apple Patent Application 20130308838. The technology used is similar to ARM's TrustZone/SecurCore but contains proprietary code for Apple KF cores in general and SEP specifically. It is also responsible for generating the UID key on A9 or newer chips that protects user data at rest.[214]

It has its own secure boot process to ensure that it is completely secure. A hardware random number generator is also included as a part of this coprocessor. Each device's Secure Enclave has a unique ID that is given to it when it is made and cannot be changed. This identifier is used to create a temporary key that encrypts the memory in this portion of the system. The Secure Enclave also contains an anti-replay counter to prevent brute force attacks.[213]

The SEP is located in the devicetree under IODeviceTree:/arm-io/sep and managed by the AppleSEPManager driver.[215]

In 2020, security flaws in the SEP were discovered, causing concerns about Apple devices such as iPhones.[216]

Face ID

Main article: Face ID

Face ID is a face scanner that is embedded in the notch on iPhone models X, XS, XS Max, XR, 11, 11 Pro, 11 Pro Max, 12, 12 Mini, 12 Pro, and 12 Pro Max, and 13, 13 Mini, 13 Pro, and 13 Pro Max. It can be used to unlock the device, make purchases, and log into applications among other functions. When used, Face ID only temporarily stores the face data in encrypted memory in the Secure Enclave, as described below. There is no way for the device's main processor or any other part of the system to access the raw data that is obtained from the Face ID sensor.[213]

Passcode

iOS devices can have a passcode that is used to unlock the device, make changes to system settings, and encrypt the device's contents. Until recently, these were typically four numerical digits long. However, since unlocking the devices with a fingerprint by using Touch ID has become more widespread, six-digit passcodes are now the default on iOS with the option to switch back to four or use an alphanumeric passcode.[213]

Touch ID

Main article: Touch ID

Touch ID is a fingerprint scanner that is embedded in the home button and can be used to unlock the device, make purchases, and log into applications among other functions. When used, Touch ID only temporarily stores the fingerprint data in encrypted memory in the Secure Enclave, as described above. There is no way for the device's main processor or any other part of the system to access the raw fingerprint data that is obtained from the Touch ID sensor.[213]

Address Space Layout Randomization

Main article: Address Space Layout Randomization

Address Space Layout Randomization (ASLR) is a low-level technique of preventing memory corruption attacks such as buffer overflows. It involves placing data in randomly selected locations in memory in order to make it more difficult to predict ways to corrupt the system and create exploits. ASLR makes app bugs more likely to crash the app than to silently overwrite memory, regardless of whether the behavior is accidental or malicious.[217]

Non-Executable Memory

iOS utilizes the ARM architecture'sExecute Never (XN) feature. This allows some portions of the memory to be marked as non-executable, working alongside ASLR to prevent buffer overflow attacks including return-to-libc attacks.[213]

Encryption

As mentioned above, one use of encryption in iOS is in the memory of the Secure Enclave. When a passcode is utilized on an iOS device, the contents of the device are encrypted. This is done by using a hardware AES 256 implementation that is very efficient because it is placed directly between the flash storage and RAM.[213]

iOS, in combination with its specific hardware, uses crypto-shredding when erasing all content and settings by obliterating all the keys in 'effaceable storage'. This renders all user data on the device cryptographically inaccessible.[218]

Keychain

The iOS keychain is a database of login information that can be shared across apps written by the same person or organization.[213] This service is often used for storing passwords for web applications.[219]

App Security

Third-party applications such as those distributed through the App Store must be code signed with an Apple-issued certificate. In principle, this continues the chain of trust all the way from the Secure Boot process as mentioned above to the actions of the applications installed on the device by users. Applications are also sandboxed, meaning that they can only modify the data within their individual home directory unless explicitly given permission to do otherwise. For example, they cannot access data owned by other user-installed applications on the device. There is a very extensive set of privacy controls contained within iOS with options to control apps' ability to access a wide variety of permissions such as the camera, contacts, background app refresh, cellular data, and access to other data and services. Most of the code in iOS, including third-party applications, runs as the "mobile" user which does not have root privileges. This ensures that system files and other iOS system resources remain hidden and inaccessible to user-installed applications.[213]

App Store bypasses

Companies can apply to Apple for enterprise developer certificates. These can be used to sign apps such that iOS will install them directly (sometimes called "sideloading"), without the app needing to be distributed via the App Store.[220] The terms under which they are granted make clear that they are only to be used for companies who wish to distribute apps directly to their employees.[220]

Circa January–February 2019, it emerged that a number of software developers were misusing enterprise developer certificates to distribute software directly to non-employees, thereby bypassing the App Store. Facebook was found to be abusing an Apple enterprise developer certificate to distribute an application to underage users that would give Facebook access to all private data on their devices.[221][222][223] Google was abusing an Apple enterprise developer certificate to distribute an app to adults to collect data from their devices, including unencrypted data belonging to third parties.[224][220] TutuApp, Panda Helper, AppValley, and TweakBox have all been abusing enterprise developer certificates to distribute apps that offer pirated software.[225]

Network Security

iOS supports TLS with both low- and high-level APIs for developers. By default, the App Transport Security framework requires that servers use at least TLS 1.2. However, developers are free to override this framework and utilize their own methods of communicating over networks. When Wi-Fi is enabled, iOS uses a randomized MAC address so that devices cannot be tracked by anyone sniffing wireless traffic.[213]

Two-Factor Authentication

Main article: Multi-factor authentication

Two-factor authentication is an option in iOS to ensure that even if an unauthorized person knows an Apple ID and password combination, they cannot gain access to the account. It works by requiring not only the Apple ID and password, but also a verification code that is sent to an iDevice or mobile phone number that is already known to be trusted.[213] If an unauthorized user attempts to sign in using another user's Apple ID, the owner of the Apple ID receives a notification that allows them to deny access to the unrecognized device.[226]

Reception

Market share

Main article: Usage share of operating systems

iOS is the second most popular mobile operating system in the world, after Android. Sales of iPads in recent years are also behind Android, while, by web use (a proxy for all use), iPads (using iOS) are still the most popular.[227]

By the middle of 2012, there were 410 million devices activated.[228] At WWDC 2014, Tim Cook said 800 million devices had been sold by June 2014.[229]

During Apple's quarterly earnings call in January 2015, the company announced that they had sold over one billion iOS devices since 2007.[230][231]

By late 2011, iOS accounted for 60% of the market share for smartphones and tablets.[232] By the end of 2014, iOS accounted for 14.8% of the smartphone market[233] and 27.6% of the tablet and two-in-one market.[234] In February 2015, StatCounter reported iOS was used on 23.18% of smartphones and 66.25% of tablets worldwide, measured by internet usage instead of sales.[235]

In the third quarter of 2015, research from Strategy Analytics showed that iOS adoption of the worldwide smartphone market was at a record low 12.1%, attributed to lackluster performance in China and Africa. Android accounted for 87.5% of the market, with Windows Phone and BlackBerry accounting for the rest.[236][237]

Devices

Main article: List of iOS devices

Источник: https://en.wikipedia.org/wiki/IOS
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Tenorshare Reiboot Pro 8.1.2.1 Crack With Patch Key 2021 [Win+Mac]

Tenorshare Reiboot Pro 8.1.2.1 Crack With Patch Key 2021 [Win+Mac]

Tenorshare Reiboot Pro 8.1.2.1 Crack is a powerful software used to solve the IOS problem and boost up your IOS devices. This application provides you with the facility to recover your IOS devices data from all types of errors. Everyone knows that it is tough to fix IOS errors, but using this application, you can quickly adjust your IOS errors. This software can fix your IOS errors automatically. It is one of the leading software which is available on this website with a working download link. Furthermore, it has a unique and user-friendly interface that is easy to use for every kind of user.

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Tenorshare Reiboot Pro 8.1.2.1 Crack With Patch Key 2021 [Win+Mac]

Tenorshare Reiboot Pro Keygen consumes low place in your PC system as a result of it’s light-weight. This software a very highly effective boot restore software that has proved itself as a #No—1 software program on this trade. Thousands and thousands of users utilize this app to recuperate their iOS gadgets due to its new and awesome options. This software contains a lot of latest options that may be very useful to you. The person interface may be straightforward, pleasant, and userfriendly to make use of even for learners. With a single click on the button, you easily can download this excellent software. Tenorshare Reiboot Pro 2021 Crack doesn’t use many sources in your system.

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Tool that unlocks iOS free-trial

Tenorshare 4uKey is an application that lets you unlock your handheld Apple devices. 4uKey removes passcodes and Apple IDs from iPad, iPod Touch, and iPhone. You can get rid of the mobile device management and the MDM log-in and profile screens from your iOS account. 4uKey is a paid app that comes with a free version.

iMyFone and 3uTools are alternatives to Tenorshare 4uKey that are developed for portable iOS electronics. iMyFone and 3uTools have a full suite of iOS management tools, while 4uKey is primarily for getting into disabled and locked accessories. iMyFone and 3uTools let you fake your GPS location, unlike Tenorshare 4uKey.

Is Tenorshare 4uKey free?

Tenorshare 4uKey does not have an entirely free download. Since 4uKey is trialware, you can use the service for business and personal use with a free trial for a limited period. You can either purchase the firmware package for a one-time price to get lifetime access or pay for a monthly subscription.

4uKey is available for Apple Mac and Microsoft Windows PC operating systems. Each of the plans lets you use 1 PC and up to 5 portable products. Tenorshare 4uKey has a separate Android unlocker that works with Samsung devices and Google accounts. You can cancel your membership at any time, aside from the lifetime license, with a money-back guarantee during a certain period.

Does Tenorshare 4uKey really work?

Tenorshare 4uKey will unlock iPhone, iPad, and iPod Touch locked password screens. 4uKey can remove four and six-digit passcodes along with Face ID and Touch ID from your iOS device. Another locked screen that you can get rid of is the MDM log in. The Remote Management screen can be removed in one step. 

4uKey can remove Apple ID from the devices that are logged in with your account. Apple ID removal can be risky with certain iOS versions, since you can lose your personal data depending on your iOS number and whether Find My iPhone is turned on or not. A successful Apple ID removal lets you use iCloud, Music, Podcasts, etc.

While a normal factory reset requires a password or Apple ID login, Tenorshare 4uKey lets you reset your iOS products without a passcodeor Apple ID credentials. Since the complete reset can be uncertain since you risk losing data recovery, you will need to know your Apple ID information to make sure you can retrieve your personal data.

What is 4uKey?

4uKey has a simple user interface with three features available on the home screen. You can unlock your Apple ID, erase your screen time passcode, or bypass the MDM. The ‘Unlock Apple ID’ and 'Remove Screen Time Passcode’ commands deliver on-screen instructions to follow. ‘Bypass MDM’ can be done with one click.

A backup of your data is recommended before you begin. You will need to connect your iOS device to your computer or laptop with a USB cable. 4uKey will detect your device during the passcode or Apple ID removal on your iPad, iPod, or iPhone screen.

4uKey will take care of the next steps once you download the firmware that matches your Apple product. An estimated timeof a few minutes is common to see beneath the loading bar.

The device will restore to the start screen, and you will need to set upyour Apple accessory from the beginning. While a screen passcode is required after you disable Apple ID accounts, you can choose whether you want to use a passcode after you have bypassed your lock screen.

Specialized software to unlock iOS

Tenorshare 4uKey is made specifically to unlock disabled iPhone, iPad, and iPod products. You can use 4uKey to get past a numeric code, Face ID, Touch ID, Apple ID, Screen Time, and MDM lock. ReiBoot is an additional application that Tenorshare makes to address recovery mode issues, and iCareFone is another app that specializes in backing up iOS electronics.

What’s new?

The developer delivers new software updates on a regular basis. A new feature lets you get past forgotten Screen Timepasscodes. While you can use 4uKey to remove the restriction without losing data, removals can be illegal which is why Tenorshare prohibits illegalApple ID or passcode removals within business settings.

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Tenorshare ReiBoot Pro 8.1.3.6 with Keygen

ReiBoot is boot repair tool for iOS devices. The app can put your iPhone/iPad or iPod Touch into and out of recovery mode with a single click when you are unable to do so from your iOS device or using the iTunes app.

ReiBoot allows you to restore your iPhone/iPad or iPod Touch from its backup file, in the event of a failure due to a downgrade or a jailbreak. If your iOS device is locked-up, frozen or your home button has failed to respond, you can restore it to a working state.

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How to Jailbreak iOS Device on Windows

To bypass iCloud activation lock, you need to jailbreak your iOS device first. Since there is no jailbreak tool for the Windows system, you can follow the tested tutorial here to create a Linux Ubuntu environment on your Windows computer and then jailbreak your iOS device.

Contents of this article:


Solution 1: Jailbreak iOS with Checkn1x

Checkn1x is a Linux-based distribution for jailbreaking iOS devices with Checkn1x.

Preparations needed for jailbreaking iOS devices on Windows:

  • Windows 7 or later, 32 or 64 bit
  • USB flash drive with 2 GB, or more, capacity
  • Download BalenaEtcher to burn USB flash
  • Download Checkn1x iso file

Refer to the video below to jailbreak iOS device on Windows in 5 minutes:

how to jailbreak ios on windows

# Burn a USB Flash Drive

Step 1. First download the mirror writing tool BalenaEthcer

Step 2. Download the latest version of the jailbreak tool image, select the above Checkn1x 1.1.7 version to download.

Step 3. Open BalenaEtcher, click "Flash from file", and select the downloaded image.

Flash from file

Step 4. Select the connected USB flash drive. Note that this will erase all the data in your U disk. Make a backup first if necessary.

Step 5. Click "Flash" to start writing the image .iso file.

Checkn1x flash success

After the writing is complete, restart the computer and choose to boot from the U disk.

#Restart Computer and Jailbreak iOS Device

Step 6. Restart the computer and Press F12 when the screen goes dark and before the brand logo appears.

Press F12

Use the errow keys to navigate and the Enter key to select. Select the U disk you used in the previous session to start. Usually the key is F12 and it might differ according to brands.

Start from U Disk

Step 7. Press the Alt+F2 key, select to run the Checkra1n jailbreak tool (GUI).

Run Checkra1n

Step 8. Checkra1n will start with the following starting interface. Use the errow keys to navigate and the Enter key to select.

Checkra1n start

Step 9. Click "Options". For iPhone 6s, 6s plus, 7 and 7 plus, please select "Allow untested iOS/iPadOS/tv OS versions."

Allow untested versions

Special reminder: When jailbreaking iPhone8, 8P, X, you need to check the first item "Allow untested iOS/iPadOS/tv OS versions"and "Skip A11 BPR check", and then return to start jailbreaking.

Skip A11 BPR check

Step 10. Your device will automatically enter recovery mode. When it enter recovery mode successfully, click "Next".

Entering recovery mode

After that, you need to put the device into DFU mode manually. Just follow the instructions on the Checkra1n interface. Here my device is an iPhone 8plus running iOS 14.6.

Enter DFU mode

After your device enters DFU mode successfully, Checkra1n will start jailvreaking automatically and it might takes a moment.

Jailbreaking and booting

If the "All Done" text appears on the Checkra1n interface, then the jailbreaking succeeds. You can press "Ctrl + Alt + Delete" to restart your computer and bypass the iCloud activation lock.

Jailbreak done

Note

If the above method cannot be jailbroken, or a Lockdown -21 error is displayed, then use the following jailbreak method:

In the start interface, select the Alt + F3 key combination to enter the command line jailbreak mode. At this time, you only need to tighten and enter the DFU mode. The jailbreak tool will automatically jailbreak, and no other operations are required. Only when All done is displayed at the end, the jailbreak is successful!

Success


Solution 2: Jailbreak iOS with Checkra1n

Note

  • Device models supported to jailbreak on iOS 14.x :full support for Apple chip A10/A10X devices - iPhone 6s6s plus77plus, iPad (2018, 6th generation)
    iPad (2019, 7th generation), iPod touch (2019, 7th generation)
    limited support for A11 devices on iOS 14.x (Options > Skip A11 BPR check) - iPhone 8/8 plus/X. After jailbreaking A11 devices, do not set Passcode, Touch ID, Face ID, or password for your lock screen.
  • If you have access to a computer running macOS 10.13 - 10.15, you are recommended to Jailbreak iOS Device on Mac first.
  • According to our tests, the jailbreaking for iPhone 5S will fail using this method. If you are using iPhone 5S, please jailbreak it on a Mac.

Check the video here to learn quickly on how to jailbreak iOS on Windows with Checkra1n:

how to jailbreak ios on windows

Preparations for Jailbreaking iOS on Windows

Preparations needed for jailbreaking iOS devices on Windows:

  • Windows 7 or later, 32 or 64 bit
  • USB flash drive with 2 GB, or more, capacity
  • Download ubuntu .iso file
  • Download rufus.exe to create USB drive for Ubuntu
  • Download checkra1n-x86_64 file to jailbreak iOS in Ubuntu

Detailed Steps for Jailbreaking iOS on Windows

# Create Ubuntu USB Flash Drive

Step 1.Insert your USB flash drive.

Step 2.Download the executable Rufus and run it – no installation is necessary. Once downloaded, the application is ready to use.

Step 3.Click the "Select" button and find the Ubuntu image you've downloaded. After selecting, the "ubuntu-20.04.1-desktop-amd64.iso" file will appear in the boot selection. Keep the other options default and click "Start".

Step 4.Rufus will show a warning that all data on your live USB will be destroyed. Please backup your USB files if necessary and then click "OK". Once an ISOHybrid image is detected, select the recommended option and click "OK".

Wait for 2 to 3 minutes when Rufus is creating USB flash drive of Ubuntu.

Click "Close" when the process completes.

Note

Please re-plugin the USB flash after creating Ubuntu drive in case that it becomes unrecognized.

# Boot Ubuntu on Windows

Step 5.Go to "Windows" > "Restart" to restart your compuer.

Press the F12 shortcut key when the computer is turned on and before the operating system loading. Here my computer is Dell.

Note

For most computer brands, the keyboard shortcut for launching BIOS is F12. If F12 does not work, you need to search for the correct key that matches your brand.

The BIOS control window of your computer will appear. On the BIOS window, you need to choose the Ubuntu USB flash drive you've just created. Use the arrow keys on your keyboard to select the correct option, and then press "Enter".

Step 6.You'll see the Ubuntu system loading as below. All Ubuntu filesystem checks are in progress.

Select the first option "*Ubuntu" to boot the selected Ubuntu OS.

Step 7.When the booting ends, select "Try Ubuntu" to start Ubuntu from the flash drive.

Now you've entered the Ubuntu system. Keep your iPhone/iPad/iPod touch connected to the computer and you'll see it on the desktop.

# Jailbreak iOS Device

Step 8.Find the "checkra1n-x86_64" jailbreak tool file you've downloaded before. If you haven't downloaded the file before restarting the computer, you can download it now through a browser. To open Checkra1n jailbreak tool, you'll need to use Terminal.

Open Terminal, enter codes in Terminal in succession (you can copy the codes in the quotations directly):

    1. enter "chmod +x " (there is a space before the plus sign and a space after the x) and drag the "checkra1n-x86_64" file to the Terminal window and press "Enter" key.
    2. enter "sudo " (there is a space after sudo) and drag the "checkra1n-x86_64" file to the Terminal window again, then press the "Enter" key.

Note

If the Checkra1n file can't be draged to Terminal, please copy and paste it to the desktop. Right click the file and choose "Show in Files" and then drag it again.

If the codes are correctly entered in the previous step, then Checkra1n will be running with the following screen appear:

Step 9.To jailbreak your iOS device, Checkra1n requires your device to be in recovery mode.

Click "Next" and Checkra1n will help your iOS device enter recovery mode automatically.

Click "Start" and follow the given instructions on Checkra1n to put your iOS device into DFU mode.

After entering DFU mode successfully, Checkra1n will immediately start installing jailbreak. Clik "Done" when the jailbreaking process completes.

Step 10.After successful jailbreaking, quit Ubuntu and restart your computer. Go to the top right corner, click "Power" > "Power Off" > "Restart".

Manually unplug your USB flash from your computer's USB port and then press "Enter".

After restarting, your computer will automatically enter Windows operating system. Launch iBypasser Windows version, and click "Start Bypass" to finish bypassing the iCloud activation lock screen.

FAQs: Common Errors and Problems when Jailbreaking

Q1. What to Do when the "Start" button of Checkra1n is grey?

If your device is running versions that have not been tested by Checkra1n, the "Start"button on Checkra1n will be grey. You need to click "Options" and select "Allow untested iOS/iPadOS/tvOS versions" and click "Back" then the "Start" button will be usable.

Q2. What to Do when Jailbreaking Gets Stuck on "Right before trigger"?

If Chcekra1n gets stuck on "Right before trigger (this is the real bug setup)" screen, try the following solutions to fix this:

  • use another USB and repeat the tutorial steps
  • flash your iOS device and restart the computer to try again

Q3. What to Do when the Jailbreaking Fails?

If the jailbreak fails, please plug your device into the USB port on the back of the computer mainframe and try the jailbreak process again. Usually the USB port on the back of the computer mainframe is 2.0 which has better compatibility then the 3.0 version in the front.

Q4. How to Solve the -20 Error when Jailbreaking iPad on iOS 14.5 and 14.6?

For the iPad Pro 12.9-inch and iPad mini4 models, when jailbreaking iOS14.5, 14.5.1, and 14.6, Error -20 will appear, which leads to the final jailbreak failure (as shown above). The reason is that some new versions such as 14.5 and the jailbreak tool checkra1n have problems with the driver kernel, resulting in the failure of the system to boot correctly in the last step. Here is a method that can successfully solve this problem.

Timed out -20 error

Tools you'll need:

Step 1. Download the tool and file given above.

Step 2. Drag Checkra1n 0.12.4 to the desktop. Right click the file and go to "Show Package Contents" to find the Checkra1n file.

Show Package Contents

Step 3. Open Terminal which you can find through Applications > Utilities, and then drag the Checkra1n file to the Terminal window.

Drag to Terminal

Step 4. Enter " -k " (there is a space before and after -k ). Drag the PongoConsolidated.bin file to the Terminal window.

Drag Pongo

Step 5. Press "Enter" on your keyboard and the Checkra1n GUI will be launched. Now you can do the normal jailbreak steps to jailbreak your device. If you've tested other devices with the -20 error, please let me know in the comment.

Run Checkra1n 124


After the jailbreaking is done, launch iBypasser Windows version, and click "Start Bypass" to finish bypassing the iCloud activation lock screen.

Источник: https://www.imyfone.com/activation-bypass/how-to-jailbreak-ios-on-windows/
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