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{{Short description|2015 mobile operating system}}
{{for|similar names, including Mac OS 9|OS9 (disambiguation)}}
{{for|similar names, including [[Mac OS 9]]|OS9 (disambiguation)}}
{{Use mdy dates|date=September 2015}}
{{Use mdy dates|date=May 2020}}
{{lowercase title}}
{{lowercase title}}
{{Infobox OS version
{{Infobox OS version
| name = iOS 9
| name = iOS 9
| version of = [[iOS]]
| version of = [[iOS]]
| logo = IOS 9 Logo.png
| logo = IOS 9 Logo.png
| logo_size = 100 px
| logo_size = 85px
| screenshot = IOS 9 Homescreen.png
| screenshot = IOS 9 Homescreen.png
| screenshot_size = 270px
| screenshot_size = 237px
| caption = [[iOS]] 9.3.2 running on an [[iPhone 6S]], showing some of the default apps.
| caption = iOS 9 home screen, running on the iPhone 6s
| developer = [[Apple Inc.]]
| developer = [[Apple Inc.]]
| website = {{URL|https://www.apple.com/ios/}}
| website = {{webarchive |url=https://web.archive.org/web/20160906075542/https://www.apple.com/ios/ |date=September 6, 2016 |title=iOS 9 – Apple }}
| source_model = [[Closed source|Closed]], with [[open source]] components
| source_model = [[Proprietary software|Closed]], with [[open-source software|open source]] components
| license = [[proprietary software|Proprietary]] [[EULA]] except for open-source components
| license = [[proprietary software|Proprietary]] [[EULA]] except for open-source components
| kernel_type = [[Hybrid kernel|Hybrid]] ([[XNU]])
| kernel_type = [[Hybrid kernel|Hybrid]] ([[XNU]])
| released = {{Start date and age|2015|9|16}}
| released = {{Start date and age|2015|9|16}}
| update model = [[Software Update]]
| supported_platforms = [[iPhone 4S]]<br/>[[iPhone 5]]<br/>[[iPhone 5C]]<br/>[[iPhone 5S]]<br/>[[iPhone 6]]<br />[[iPhone 6 Plus]]<br/>[[iPhone 6S]]<br/>[[iPhone 6S Plus]]<br/>[[iPhone SE]]<br/>[[iPod Touch (5th generation)]]<br/>[[iPod Touch (6th generation)]]<br/>[[iPad (2nd generation)|iPad 2]]<br/>[[iPad (3rd generation)]]<br/>[[iPad (4th generation)]]<br/>[[iPad Air]]<br/>[[iPad Air 2]]<br/>[[iPad Mini (1st generation)]]<br/>[[iPad Mini 2]]<br/>[[iPad Mini 3]]<br/>[[iPad Mini 4]]<br/>[[iPad Pro]]
| preceded_by = [[iOS 8]]
| package manager = [[App Store]]
| supported platforms = {{plainlist|
| succeeded_by = <!--Do not include until officially announced-->
'''iPhone'''<br/>
| latest release version = 9.3.2 (13F69)
* [[iPhone 4s]]
| latest release date = {{Start date and age|2016|5|16}}
* [[iPhone 5]]
| support_status = Supported
* [[iPhone 5c]]
| logo caption =
* [[iPhone 5s]]
| latest preview version = 9.3.3 Beta 1 (13G12)
* [[iPhone 6|iPhone 6 & 6 Plus]]
| latest preview date={{Start date and age|2016|5|23}}}}
* [[iPhone 6s|iPhone 6s & 6s Plus]]
* [[iPhone SE (1st generation)]]
'''iPod Touch'''<br/>
*[[iPod Touch (5th generation)]]
*[[iPod Touch (6th generation)]]
'''iPad'''<br/>
*[[iPad 2]]
*[[iPad (3rd generation)]]
*[[iPad (4th generation)]]
*[[iPad Air]]
*[[iPad Air 2]]
*[[iPad Mini (1st generation)]]
*[[iPad Mini 2]]
*[[iPad Mini 3]]
*[[iPad Mini 4]]
*[[iPad Pro (1st generation)]]
}}
| preceded_by = [[iOS 8]]
| succeeded_by = [[iOS 10]]
| latest release version = 9.3.6 (13G37)<ref>{{Cite web|url=https://www.macrumors.com/2019/07/22/apple-releases-gps-bug-fix-older-iphones-ipads/|title=Apple Releases iOS 9.3.6 and iOS 10.3.4 With GPS Bug Fix for Older iPhones and iPads|last=Clover|first=Juli|website=www.macrumors.com|date=July 22, 2019 |language=en|access-date=July 22, 2019|archive-date=July 22, 2019|archive-url=https://web.archive.org/web/20190722174309/https://www.macrumors.com/2019/07/22/apple-releases-gps-bug-fix-older-iphones-ipads/|url-status=live}}</ref>
| latest release date = {{Start date and age|2019|7|22}}
| tagline = The most advanced mobile experience. Now even more so.
| support_status = Obsolete, unsupported
| logo caption =
| latest preview version =
| latest preview date =
}}


'''iOS 9''' is the [[iOS version history|ninth]] major release of [[iOS]], the [[mobile operating system]] by [[Apple Inc.]] It is the successor to [[iOS 8]] and focuses less on new features and more on under-the-hood optimizations, as well as battery improvements.<ref>{{cite web|title=Top Features why iOS 9 is the smartest version|url=http://ios9guide.com/top-10-featuress-why-ios-9-is-the-smartest-version/}}</ref> It was announced at the company's [[WWDC 2015]] keynote on June 8, 2015, and released on September 16, 2015.
'''iOS 9''' is the [[iOS version history|ninth major release]] of the [[iOS]] [[mobile operating system]] developed by [[Apple Inc.]], being the successor to [[iOS 8]]. It was announced at the company's [[Worldwide Developers Conference]] on June 8, 2015, and was released on September 16, 2015. It was succeeded by [[iOS 10]] on September 13, 2016.<ref>{{cite web |first=Juli |last=Clover |title=Apple Releases iOS 10 With Redesigned Lock Screen, New Messages Features, Third-Party Siri, and More |url=http://www.macrumors.com/2016/09/13/apple-releases-ios-10/ |website=[[MacRumors]] |date=September 13, 2016 |access-date=December 30, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161228010133/http://www.macrumors.com/2016/09/13/apple-releases-ios-10/ |archive-date=December 28, 2016 }}</ref>


iOS 9 incorporated many feature updates to built-in apps. Most notably, [[Notes (Apple)|Notes]] received the ability to draw sketches with different tools, image insertion, prominent visual appearance for website links and map locations, and advanced list formatting; an all-new [[News (Apple)|Apple News]] app aggregates articles from different sources; and [[Apple Maps]] received mass transit support, although in a limited number of locations at launch. Major new system updates include [[proactivity]], where [[Siri]] and advanced search are combined to make the operating system more contextually aware of information (such as time and location), and can provide the user with information ahead of time. For searching, the proactive intelligence can display instant results in a widget-like format, including weather, sports, news, and more. iOS 9 also added multiple forms of multitasking to the [[iPad]]. In iOS 9.3, Apple added a Night Shift mode that changes the color of the device's display to a warmer, less "blue light" containing shade, to reduce any negative eye health effects on users' [[circadian rhythm]]s. Additionally, iOS 9 brought new user experience functions, including Quick Actions, and Peek and Pop, based on the touch-sensitive display technology in the [[iPhone 6s]]. Quick Actions are shortcuts on home screen app icons. Users can preview ("Peek") at content without moving away from the current screen before they enter ("Pop") the previewed content into full view.
On September 21, 2015, Apple announced that iOS 9 had been installed on more than 50% of "active" iOS devices as measured by the [[App Store (iOS)|App Store]], making it the fastest adoption rate for a new operating system.<ref>{{cite web|last1=Cunningham|first1=Andrew|title=Apple: iOS 9 on more than half of all devices, fastest adoption rate ever|url=http://arstechnica.com/apple/2015/09/apple-ios-9-on-more-than-half-of-all-devices-fastest-adoption-rate-ever/|website=[[Ars Technica]]|publisher=[[Condé Nast]]|accessdate=September 21, 2015|date=September 21, 2015}}</ref><ref>{{Cite web|title = Apple: Latest iPhone, iPad software surpasses 50 percent adoption - CNET|url = http://www.cnet.com/news/apple-touts-ios-9-adoption-rate-of-more-than-50/|website = CNET|accessdate = September 23, 2015}}</ref> {{As of|2016|5|9|df=US}}, that percentage has increased to 84%.<ref name="IOS 9 Adoption Rate">{{cite web|title=App Store - Support - Apple Developer|url=https://developer.apple.com/support/app-store/|publisher=Apple Inc.|accessdate= April 20, 2016}}</ref>


Reception of iOS 9 was positive. Critics praised proactivity and Siri for making the Notification Center a central location for all information, and the potential for future updates to improve the functionality. The new multitasking features for the iPad were complimented, as were drawing and photo insertion in the Notes app. However, Apple News was criticized for a low number of decent-looking articles, and Apple Maps was criticized for the limited geographical availability of mass transit support.
==History==
{{Main|iOS version history#iOS 9}}
iOS 9 was introduced at the [[Apple Worldwide Developers Conference]] on June 8, 2015, with iOS 9.0 beta 1 being made available to registered developers straight after the keynote, and a public beta made available to members of Apple's Beta Software Program in July.<ref>{{cite news|last1=Griffin|first1=Andrew|title=iOS 9 beta: users can sign up for beta program to get new iPhone operating system in July|url=http://www.independent.co.uk/life-style/gadgets-and-tech/news/ios-9-beta-users-can-sign-up-for-beta-scheme-to-get-new-iphone-operating-system-in-july-10306392.html|accessdate=June 10, 2015|publisher=The Independent|date=June 8, 2015}}</ref><ref name=telegraph>{{cite news|last1=Curtis|first1=Sophie|title=iOS 9: what we've learnt from WWDC 2015|url=http://www.telegraph.co.uk/technology/apple/11662734/iOS-9-everything-we-know-after-WWDC-2015.html|accessdate=June 10, 2015|publisher=The Telegraph|date=June 9, 2015}}</ref> iOS 9 was released publicly on September 16, 2015.<ref>{{Cite press release|title = iOS 9 Available as a Free Update for iPhone, iPad & iPod touch Users September 16 | url = https://www.apple.com/pr/library/2015/09/09iOS-9-Available-as-a-Free-Update-for-iPhone-iPad-iPod-touch-Users-September-16.html|website = www.apple.com|accessdate = December 9, 2015}}</ref><ref>{{cite web|title=iOS 9 will be released on September 16th|url=http://www.theverge.com/2015/9/9/9245073/apple-ios-9-download-release-date-iPhone-upgrade|work=[[The Verge]]|publisher=[[Vox Media]]}}</ref><ref>{{cite web|title=iOS 9 to be released Sept. 16|url=http://www.cnet.com/news/ios-9-release-sept-16/|work=[[CNET]]|publisher=[[CBS Interactive]]}}</ref>


Five days after release, Apple announced that iOS 9 had been installed on more than 50% of "active" iOS devices, which Apple described as the "fastest adoption rate ever for a new operating system".
iOS 9.0.1 was released on September 23, 2015, as the first update to iOS 9. It fixed a major bug that caused the "Slide to Upgrade" screen to freeze when updating from earlier versions of iOS.<ref>{{cite web|url=http://gadgets.ndtv.com/mobiles/news/ios-901-update-brings-fix-for-slide-to-upgrade-and-other-bugs-743878|title=iOS 9.0.1 Update Brings Fix for 'Slide to Upgrade' and Other Bugs|author=Manish Singh|date=September 24, 2015}}</ref><ref>{{cite web|url=http://www.macrumors.com/2015/09/23/apple-releases-ios-9-0-1/|title=Apple Releases iOS 9.0.1 With Multiple Bug Fixes|date=September 23, 2015|author=Juli Clover}}</ref>


iOS 9 is the final version of iOS to feature the classic slide-to-unlock gesture. With the release of iOS 10, Apple introduced the Today view, which was accessed on the lock screen by swiping to the right. Apple removed slide-to-unlock in iOS 10 because it would create confusion when users were trying to unlock their phone by sliding the screen, but instead of unlocking the phone, it took them to the new Today view.<ref>{{Cite web |last=Smith |first=Chris |date=2016-06-14 |title=Apple has replaced 'slide to unlock' with something really dumb |url=https://bgr.com/tech/ios-10-swipe-unlock-press-home/ |access-date=2022-05-08 |website=BGR |language=en-US |archive-date=October 17, 2021 |archive-url=https://web.archive.org/web/20211017104907/https://bgr.com/tech/ios-10-swipe-unlock-press-home/ |url-status=live }}</ref>
iOS 9.0.2 was released on September 30, 2015, to fix a major lock screen bypass issue.<ref>{{cite web|url=http://www.zdnet.com/article/new-ios-9-iphone-ipad-update-lands-with-lock-screen-bypass-fix/|title=New iOS 9.0.2 update fixes iPhone lock screen bypass flaw|author=Zack Whittaker|date=October 1, 2015}}</ref><ref>{{cite web|url=http://www.iphonehacks.com/2015/09/ios-9-0-2-lock-screen-security-fix.html|title=iOS 9.0.2 fixes the lock screen security flaw that could access Photos and Contacts without passcode|author=Evan Selleck|date=September 30, 2015}}</ref>
iOS 9 is the final version of iOS compatible with devices with the 30-pin dock connector, including the [[iPhone 4s]], [[iPad 2]], and [[iPad (3rd generation)]]. It is also the final version of iOS that supports the [[iPad Mini (1st generation)]] and the last 32-bit iPod Touch, the [[iPod Touch (5th generation)]]. iOS 9's successor, iOS 10, drops support for devices with A5 or A5X chips.


== Overview ==
iOS 9.1 was released on October 21, 2015.<ref>{{cite web|title =Apple Releases iOS 9.1 With New Emoji, Live Photos Improvements| url = http://www.macrumors.com/2015/10/21/apple-releases-ios-9-1/|website = www.macrumors.com|date = October 21, 2015}}</ref> It includes support for the [[iPad Pro]] and [[Apple Pencil]] and the 4th generation [[Apple TV]].


iOS 9 was introduced at the Apple Worldwide Developers Conference on June 8, 2015, with the first beta version made available to registered developers after the keynote, and a public beta made available in July.<ref name="Announce">{{cite web |first=Dan |last=Seifert |title=Apple announces iOS 9, release later this year |url=https://www.theverge.com/2015/6/8/8730557/apple-ios9-release-wwdc-2015 |website=[[The Verge]] |publisher=[[Vox Media]] |date=June 8, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20170206023203/http://www.theverge.com/2015/6/8/8730557/apple-ios9-release-wwdc-2015 |archive-date=February 6, 2017 }}</ref><ref>{{cite web |first=Andrew |last=Griffin |title=iOS 9 beta: users can sign up for beta scheme to get new iPhone operating system in July |url=https://www.independent.co.uk/life-style/gadgets-and-tech/news/ios-9-beta-users-can-sign-up-for-beta-scheme-to-get-new-iphone-operating-system-in-july-10306392.html |website=[[The Independent]] |date=June 8, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160729221113/http://www.independent.co.uk/life-style/gadgets-and-tech/news/ios-9-beta-users-can-sign-up-for-beta-scheme-to-get-new-iphone-operating-system-in-july-10306392.html |archive-date=July 29, 2016 }}</ref><ref>{{cite web |first=Sophie |last=Curtis |title=iOS 9: what we've learnt from WWDC 2015 |url=https://www.telegraph.co.uk/technology/apple/11662734/iOS-9-everything-we-know-after-WWDC-2015.html |website=[[The Daily Telegraph]] |date=June 9, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160304051528/http://www.telegraph.co.uk/technology/apple/11662734/iOS-9-everything-we-know-after-WWDC-2015.html |archive-date=March 4, 2016 }}</ref>
iOS 9.2 was released on December 8, 2015, with new features including adding Arabic language support for Siri and introducing iPhone support for the [[Lightning (connector)|Lightning]] to [[Secure Digital|SD Card]] Reader, which lets users transfer photos and videos from an SD card (commonly used in [[Digital single-lens reflex camera|DSLR]] cameras) to iPhone without the need for a computer.<ref>{{cite web|url=http://9to5mac.com/2015/12/08/ios-9-2-beta-5/|title=Apple releases iOS 9.2 with Arabic Siri, iPhone SD Card Reader support, Apple Music fixes, more|author=Zac Hall|date=December 8, 2015}}</ref>


This marked the first time that the general public had been able to test new versions of iOS before official release, with [[Eddy Cue]], Apple's Senior Vice President of Internet Software and Services, telling ''[[Fast Company (magazine)|Fast Company]]'' that the public beta program was started "because of Maps", referring to the company's Apple Maps launch that had [[Apple Maps#Early inaccuracy (2012)|significant issues in its early days]].<ref>{{cite web |first=Rick |last=Tetzeli |title=Playing The Long Game Inside Tim Cook's Apple |url=https://www.fastcompany.com/3062090/tim-cooks-apple/playing-the-long-game-inside-tim-cooks-apple |website=[[Fast Company (magazine)|Fast Company]] |publisher=Mansueto Ventures |date=August 8, 2016 |access-date=July 5, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170414121749/https://www.fastcompany.com/3062090/tim-cooks-apple/playing-the-long-game-inside-tim-cooks-apple |archive-date=April 14, 2017 }}</ref><ref>{{cite web |first=Chris |last=Welch |title=Apple created the iOS public beta because its Maps app was so bad |url=https://www.theverge.com/2016/8/8/12401638/apple-created-ios-beta-because-maps |website=[[The Verge]] |publisher=[[Vox Media]] |date=August 8, 2016 |access-date=July 5, 2017 |url-status=live |archive-url=https://web.archive.org/web/20161113052020/http://www.theverge.com/2016/8/8/12401638/apple-created-ios-beta-because-maps |archive-date=November 13, 2016 }}</ref>
iOS 9.2.1 was released on January 19, 2016, with some bug fixes. On February 18, a second version of iOS 9.2.1 was released to fix an issue that could brick iPhones with [[Touch ID]] sensors that had been repaired by a third-party.<ref>{{Cite web|url=http://social.techcrunch.com/2016/02/18/apple-apologizes-and-updates-ios-to-restore-iphones-disabled-by-error-53/|title=Apple Apologizes And Updates iOS To Restore iPhones Disabled By Error 53|last=Panzarino|first=Matthew|website=TechCrunch|access-date=2016-03-15}}</ref>


iOS 9 was officially released on September 16, 2015.<ref>{{cite web |first=Russell |last=Brandom |title=iOS 9 will be released on September 16th |url=https://www.theverge.com/2015/9/9/9245073/apple-ios-9-download-release-date-iphone-upgrade |website=[[The Verge]] |publisher=[[Vox Media]] |date=September 9, 2015 |access-date=November 10, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161025164014/http://www.theverge.com/2015/9/9/9245073/apple-ios-9-download-release-date-iphone-upgrade |archive-date=October 25, 2016 }}</ref><ref>{{cite web |first=Kent |last=German |title=iOS 9 to be released Sept. 16 |url=https://www.cnet.com/news/ios-9-release-sept-16/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=September 9, 2015 |access-date=November 10, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161111061155/https://www.cnet.com/news/ios-9-release-sept-16/ |archive-date=November 11, 2016 }}</ref>
iOS 9.3 was released on March 21, 2016, with new [[3D Touch]] shortcuts ([[iPhone 6S|iPhone 6s and 6s Plus]] only), Night Shift Mode,<ref>Only available for [[iPhone 5S]] and later, [[iPad Pro]], [[iPad Air]] or later, [[iPad Mini 2]] or later, and [[iPod Touch (6th generation)]].</ref> [[Notes (application)|Notes]] with password protection and [[Touch ID]], improvements in [[News (application)|News]], improvements to the [[Health (application)|Health]] app, [[CarPlay]] updates for [[Apple Music]] and [[Apple Maps]], new languages for [[Siri]], multi-user mode for [[iPad]] in education, support for pairing multiple [[Apple Watch]]es to one [[iPhone]], [[Wi-fi calling]] for [[AT&T]] and [[Verizon]] only, major bug fixes, and improvements in speed and battery life.<ref>{{Cite web|url=http://www.techbout.com/what-is-new-in-ios-9-3-11900/|title=What is New in iOS 9.3|website=Techbout|language=en-US|access-date=2016-03-23}}</ref> iOS 9.3's Night Shift is a significant feature that shifts the display's colors to a warmer, less blue, light so that it lowers the effect of the screen's light on a user's [[circadian rhythm]]s.


== System features ==
iOS 9.3.1 was released on March 31, 2016, fixing a bug that causes Safari and other apps to crash and become unresponsive after tapping on links in the app.<ref>{{Cite web|url=http://9to5mac.com/2016/03/31/apple-releases-ios-9-3-1-for-iphone-and-ipad-addresses-crashing-bugs-when-tapping-links/|title=Apple releases iOS 9.3.1 for iPhone and iPad, addresses crashing bugs when tapping links|last=Mayo|first=Benjamin|website=9to5Mac|access-date=2016-03-31}}</ref>
=== 3D Touch ===
On the iPhone 6s and iPhone 6s Plus, a touch-sensitive display feature called 3D Touch is incorporated into iOS 9. It is similar to [[Force Touch]], which can be found on the trackpad of some Apple [[MacBook]] computers. Quick Actions and shortcuts are added to apps that support the 3D Touch feature and are triggered by pressing slightly harder on the app icon. It also introduces actions known as Peek and Pop, which lets users firmly hold to preview ("Peek") any kind of content in a hovering window, before they optionally apply more pressure to enter ("Pop") the content into full view.<ref>{{cite web|url=http://www.macrumors.com/how-to/iphone-6s-3d-touch/|title=How to Use 3D Touch on iPhone 6s and 6s Plus|last=Gil|first=Lory|date=October 30, 2015|website=[[MacRumors]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161121223000/http://www.macrumors.com/how-to/iphone-6s-3d-touch/|archive-date=November 21, 2016}}</ref>


The taptic engine in the iPhone 6S provides haptic feedback each time users press the screen harder.<ref>{{cite web|url=http://www.ibtimes.co.uk/iphone-6s-iphone-6s-plus-first-look-hands-3d-touch-1519139|title=iPhone 6s and iPhone 6s Plus first look: Hands-on with 3D Touch|last=Arthur|first=Charles|date=September 9, 2015|website=[[International Business Times]]|publisher=[[IBT Media]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161228061256/http://www.ibtimes.co.uk/iphone-6s-iphone-6s-plus-first-look-hands-3d-touch-1519139|archive-date=December 28, 2016}}</ref>
iOS 9.3.2 was released on May 16, 2016, restoring the ability to use Night Shift and Low Power Mode simultaneously, fixed a [[Bluetooth]] issue for [[iPhone SE]], fixed various bugs and improvements to speed and security.<ref>{{Cite web|url=http://gadgets.ndtv.com/mobiles/news/ios-932-now-available-for-download-brings-minor-improvements-fixes-838396|title=iOS 9.3.2 Now Available for Download; Brings Minor Improvements, Fixes|website=NDTV Gadgets360.com|access-date=2016-05-17}}</ref> However, iOS 9.3.2 bricked some iPad Pros, preventing them from being used. This is also called "Error 56". Apple pulled the update for iPad Pro 9.7 on May 20, 2016, after hearing about complaints of the "Error 56".<ref>{{cite web|last=Clover|first=Juli|title=Apple Pulls iOS 9.3.2 Update for 9.7-Inch iPad Pro After Bricking Complaints|url=http://www.macrumors.com/2016/05/20/ios-9-3-2-for-9-7-ipad-pro-pulled/}}</ref> Apple re-released iOS 9.3.2 (13F72) on June 2, 2016, for 9.7-inch iPad Pro which fixes the bricking issue or known as "Error 56".


=== Battery ===
Apple continues to develop new releases with major and minor improvements for the operating system through [[Software release life cycle#Beta|beta software]] available to registered members of Apple Beta Software Program. iOS 9.3.3 beta 1 has been available for developer beta testers since May 23, 2016.<ref>{{cite web|last1=Clover|first1=Juli|title=Apple Seeds First Beta of iOS 9.3.3 to Developers|url=http://www.macrumors.com/2016/05/23/apple-seeds-first-beta-of-ios-9-3-3/|website=MacRumors|accessdate=May 23, 2016|date=May 23, 2016}}</ref>
iOS 9 comes with two important battery-saving updates. When a phone has been placed face-down, the screen will not light up upon receiving notifications. Apple has also added Low Power Mode, which modifies the amount of energy dedicated to background services and animations. For example, background app refresh and push email are paused during Low Power Mode. When a phone reaches 20% battery level, users are automatically prompted to turn on Low Power Mode, which changes the color of the battery icon in the top row status bar on the screen to yellow.<ref>{{cite web|url=https://www.cnet.com/how-to/how-to-use-low-power-mode-on-ios-9/|title=How to use low-power mode on iOS 9|last=Cipriani|first=Jason|date=July 16, 2015|website=[[CNET]]|publisher=[[CBS Interactive]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161221090254/https://www.cnet.com/how-to/how-to-use-low-power-mode-on-ios-9/|archive-date=December 21, 2016}}</ref> When the battery goes higher than the 80% level, Low Power Mode automatically turns back off.<ref>{{cite web|url=http://bgr.com/2015/09/29/ios-9-batter-life-trick-low-power-mode/|title=This obvious iOS 9 trick helps your iPhone battery last much longer|last=Smith|first=Chris|date=September 29, 2015|website=[[Boy Genius Report|BGR]]|publisher=[[Penske Media Corporation]]|access-date=October 12, 2017|url-status=live|archive-url=https://web.archive.org/web/20171013013454/http://bgr.com/2015/09/29/ios-9-batter-life-trick-low-power-mode/|archive-date=October 13, 2017}}</ref>


==Features==
=== Design ===
[[San Francisco (sans-serif typeface)|San Francisco]], a new system font, replaced [[Helvetica Neue]] as the system typeface of iOS.<ref>{{cite web|url=https://www.wired.com/2015/06/apple-abandoned-worlds-beloved-typeface/|title=Why Apple Abandoned the World's Most Beloved Typeface|last=Stinson|first=Liz|date=June 9, 2015|website=[[Wired (website)|Wired]]|publisher=[[Condé Nast]]|access-date=January 8, 2017|url-status=live|archive-url=https://web.archive.org/web/20150613012051/http://www.wired.com/2015/06/apple-abandoned-worlds-beloved-typeface/|archive-date=June 13, 2015}}</ref><ref>{{cite web|url=http://mashable.com/2015/09/16/apple-ios-9-font|title=All hail Apple's new iOS 9 font, San Francisco|last=Strange|first=Adario|date=September 17, 2015|website=[[Mashable]]|access-date=January 8, 2017|url-status=live|archive-url=https://web.archive.org/web/20170109183948/http://mashable.com/2015/09/16/apple-ios-9-font/|archive-date=January 9, 2017}}</ref>
iOS 9 includes enhancements to preinstalled applications and system functions, especially for the iPad, as well as improvements to stability, speed and battery life.


iOS 9 added a new battery widget to the Notification Center that displays the battery life and charging status of any connected [[Bluetooth]] device.<ref>{{cite web|url=https://theappfactor.com/how-to-add-ios-9-battery-widget-to-notification-center/|title=How to add the iOS 9 battery widget to Notification Center|last=Kazmucha|first=Allyson|date=September 18, 2015|website=The App Factor|access-date=December 28, 2016|url-status=live|archive-url=https://web.archive.org/web/20161228032819/https://theappfactor.com/how-to-add-ios-9-battery-widget-to-notification-center/|archive-date=December 28, 2016}}</ref><ref>{{cite web|url=https://www.tekrevue.com/tip/ios-9-battery-widget-notification-center/|title=New in iOS 9: Track iPhone Accessory Battery Life in Notification Center|last=Tanous|first=Jim|date=September 28, 2015|website=TekRevue|access-date=December 28, 2016|url-status=live|archive-url=https://web.archive.org/web/20161228032923/https://www.tekrevue.com/tip/ios-9-battery-widget-notification-center/|archive-date=December 28, 2016}}</ref>
===Keyboard===


When the shift button is inactive, lowercase letters are displayed on the keyboard, instead of the all-caps representation on previous iOS versions.<ref>{{cite web|url=https://9to5mac.com/2015/06/08/ios-9-shift-key/|title=Here's how Apple finally fixed the shift key in iOS 9|last=Beasley|first=Mike|date=June 8, 2015|website=9to5Mac|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20160923011117/https://9to5mac.com/2015/06/08/ios-9-shift-key/|archive-date=September 23, 2016}}</ref>
On [[iPad]], a two-finger drag on the keyboard moves the cursor freely like a traditional trackpad making positioning the cursor and selecting text easier. A shortcut bar has been added including cut, copy, paste, undo and redo. On the iPhone 6S and 6S Plus, a force press on the keyboard also allows the user to move the cursor like a trackpad.


=== Installation ===
When shift is inactive, lowercase letters are displayed,<ref>{{cite web|url=http://9to5mac.com/2015/06/08/ios-9-shift-key/|title=Here’s how Apple finally fixed the shift key in iOS 9|work=9to5Mac}}</ref> instead of the all-caps representation on all previous iOS versions, although this can be disabled.
iOS 9 is a smaller update than iOS 8, requiring just 1.3&nbsp;[[Gigabyte|GB]] of space, compared to 4.58&nbsp;GB for iOS 8.<ref name="Installation">{{cite web|url=http://www.macrumors.com/2015/06/23/ios-9-app-delete-reinstall-os-update-feature/|title=iOS 9 Includes New Auto App Delete/Reinstall Feature for OS Updates on Devices With Insufficient Space|last=Clover|first=Juli|date=June 23, 2015|website=[[MacRumors]]|access-date=January 8, 2017|url-status=live|archive-url=https://web.archive.org/web/20170103003255/http://www.macrumors.com/2015/06/23/ios-9-app-delete-reinstall-os-update-feature/|archive-date=January 3, 2017}}</ref> Additionally, iOS 9 includes an option to temporarily delete apps to allow the update to install. Once the update has been installed, the apps will be automatically reinstalled from the App Store.<ref name="Installation" /><ref>{{cite web|url=https://www.theverge.com/2015/6/23/8834059/apple-ios-9-can-temporarily-delete-apps-before-updates|title=iOS 9 can temporarily delete apps to make room for software updates|last=Welch|first=Chris|date=June 23, 2015|website=[[The Verge]]|publisher=[[Vox Media]]|access-date=January 8, 2017|url-status=live|archive-url=https://web.archive.org/web/20170130003249/http://www.theverge.com/2015/6/23/8834059/apple-ios-9-can-temporarily-delete-apps-before-updates|archive-date=January 30, 2017}}</ref> iOS 9 also features "app thinning" functionality, whereby only the necessary assets needed to run apps on each individual device is downloaded rather than the entire app, potentially saving space.<ref name="Installation" /><ref>{{cite web|url=http://www.trustedreviews.com/news/apple-fixes-flaw-that-prevented-ios-9-app-thinning|title=Apple fixes flaw that prevented iOS 9 app-thinning|last=Smith|first=Chris|date=October 6, 2015|website=TrustedReviews|access-date=February 1, 2017|url-status=dead|archive-url=https://web.archive.org/web/20160125204526/http://www.trustedreviews.com/news/apple-fixes-flaw-that-prevented-ios-9-app-thinning|archive-date=January 25, 2016}}</ref> For example, with the new app thinning technology, when a user downloads a new app onto their new iPhone 6S, the download would only include the images and data that are required on that device, so that no space is required for the images and data that would not be used on the device.


===News===
=== Multitasking ===
For the first time, iOS 9 adds a number of features to the iPad to improve productivity. These include Slide Over, Split Screen, and [[Picture-in-picture|Picture in Picture]], for enhanced multitasking, similar to the experience found on [[OS X El Capitan]]. Slide Over allows the user to pull in a second app with a swipe from the right edge of the display. This app takes up 1/3 of the screen and sticks to the right side of the screen, while interactivity within the full-screen app is disabled while left inactive in the background. The feature allows users to perform quick tasks and then dismiss the app again.<ref>{{cite web|url=https://www.cnet.com/how-to/how-to-use-the-ipads-new-slide-over-feature-in-ios-9/|title=How to use the iPad's new 'slide-over' feature in iOS 9|last=Cipriani|first=Jason|date=August 28, 2015|website=[[CNET]]|publisher=[[CBS Interactive]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20160814023017/http://www.cnet.com/how-to/how-to-use-the-ipads-new-slide-over-feature-in-ios-9/|archive-date=August 14, 2016}}</ref><ref name="MacRumors Multitasking">{{cite web|url=http://www.macrumors.com/2015/09/16/ios-9-split-screen-multitasking-ipad/|title=Inside iOS 9: Split-Screen Multitasking for the iPad|last=Clover|first=Juli|date=September 16, 2015|website=[[MacRumors]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161229060035/http://www.macrumors.com/2015/09/16/ios-9-split-screen-multitasking-ipad/|archive-date=December 29, 2016}}</ref>
{{Main|News (application)}}iOS 9 includes a new News app (replacing the [[Newsstand (application)|Newsstand]] app) which displays news from sources such as [[The New York Times]], [[CNN]], [[Wired (website)|Wired]], and [[ESPN]] to bring one unified experience in the way users read, experience, and discover news.<ref name="verge">{{cite web|last1=Seifert|first1=Dan|title=Apple announces iOS 9, release later this year|url=http://www.theverge.com/2015/6/8/8730557/apple-ios9-release-wwdc-2015|publisher=The Verge|accessdate=June 10, 2015|date=June 8, 2015}}</ref> Publishers use the Apple News Format to create articles for iOS users. The app has been compared to the popular app [[Flipboard]], which also aggregates news in addition to social media posts.<ref name ="verge"/> It has been discovered that the News application will also have support for RSS feeds from Safari.<ref>{{cite web|last1=Clover|first1=Juli|title=iOS 9 Beta 3 Tidbits: 4x4 Folders on iPad, Screenshot and Selfie Folders, News App, and More|url=http://www.macrumors.com/2015/07/08/ios-9-beta-3-tidbits/|website=Mac Rumors|accessdate=July 28, 2015|date=July 8, 2015}}</ref>


If the user taps on the handle next to the Slide Over window or extends the window further towards the left of the screen, the user enters Split Screen, which allows them to interact with two apps simultaneously side-by-side in a 50/50 split. Users can also switch to another app in either Slide Over mode or Split Screen view by pulling down on the handle on top of either app and selecting another app from the list to replace the existing one.<ref>{{cite web|url=https://www.cnet.com/how-to/get-to-know-the-ipads-new-split-view-feature-in-ios-9/|title=Get to know the iPad's new 'split-view' feature in iOS 9|last=Cipriani|first=Jason|date=September 11, 2015|website=[[CNET]]|publisher=[[CBS Interactive]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20170222021122/https://www.cnet.com/how-to/get-to-know-the-ipads-new-split-view-feature-in-ios-9/|archive-date=February 22, 2017}}</ref><ref name="MacRumors Multitasking" />
Originally, News was only available in the US only, but as of the iOS 9.1 release, the app also arrived in the UK and Australia.<ref>{{Cite web|title = Apple Releases iOS 9.1 With New Emoji, Live Photos Improvements|url = http://www.macrumors.com/2015/10/21/apple-releases-ios-9-1/|accessdate = October 21, 2015|website = Mac Rumours|last = Clover|first = Juli|date = October 21, 2015}}</ref>


Picture in Picture mode allows users to minimize FaceTime calls or supported videos to a smaller window and continue watching them while doing other tasks on the iPad.<ref>{{cite web|url=https://www.cnet.com/how-to/how-to-use-ios-9s-picture-in-picture-feature-with-youtube/|title=How to use iOS 9's picture-in-picture feature with YouTube|last=Cipriani|first=Jason|date=January 14, 2016|website=[[CNET]]|publisher=[[CBS Interactive]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20170225035309/https://www.cnet.com/how-to/how-to-use-ios-9s-picture-in-picture-feature-with-youtube/|archive-date=February 25, 2017}}</ref><ref name="MacRumors Multitasking" />
As of March 16, 2016, Apple has opened the News platform up to all news agencies.


The Split Screen multitasking feature is only available for [[iPad Air 2]], [[iPad mini 4]], and [[iPad Pro]], while the Slide Over and Picture in Picture features are available on the iPad Air, iPad Air 2, iPad mini 2 and newer, and the iPad Pro.<ref>{{cite web|url=http://www.iphonehacks.com/2015/09/ipad-support-ios-9-split-view-slide-over-picture-in-picture.html|title=Here are the iPads that will support iOS 9's Split View, Slide Over and Picture-in-Picture features|last=Pandey|first=Rajesh|date=September 15, 2015|website=iPhoneHacks.com|access-date=December 19, 2016|url-status=live|archive-url=https://web.archive.org/web/20161220202425/http://www.iphonehacks.com/2015/09/ipad-support-ios-9-split-view-slide-over-picture-in-picture.html|archive-date=December 20, 2016}}</ref>
===Notes===
The built-in Notes app has received a number of enhancements, including the ability to draw sketches with a number of different tools, including a ruler for straight lines. Images can also be added, and links to websites and Map locations get a more prominent, visual appearance when added to notes. Attachments including images, links, locations, documents and audio across all notes can be viewed in a single view from the notes list. Advanced formatting options including checked, bulleted, dashed and numbered lists can be added. The iPhone 4S, iPad 2, iPad (3rd generation), iPad Mini (1st generation), and iPod Touch (5th generation) do not support the Sketch feature of the Notes application.<ref>{{cite web|last1=Hughes|first1=Neil|title=Inside iOS 9: Apple's Notes app is greatly enhanced with drawings, lists, pictures, links & more|url=http://appleinsider.com/articles/15/06/12/inside-ios-9-apples-notes-app-is-greatly-enhanced-with-drawings-lists-pictures-links-more|website=Apple Insider|accessdate=June 18, 2015}}</ref>


When banner notifications are tapped, causing another app to open, a back button at the top-left corner of the screen has been added, bringing the user back to the previous app.<ref>{{cite web|url=http://appleinsider.com/articles/15/08/09/how-to-use-the-new-back-button-in-ios-9|title=How to use the new back button in iOS 9|last=Oliver|first=Sam|date=August 9, 2015|website=AppleInsider|access-date=April 6, 2017|url-status=live|archive-url=https://web.archive.org/web/20170406110541/http://appleinsider.com/articles/15/08/09/how-to-use-the-new-back-button-in-ios-9|archive-date=April 6, 2017}}</ref>
Notes now sync using iCloud Drive, as opposed to the less secure [[Internet Message Access Protocol|IMAP]] system that Apple has used in past iterations of iOS. When a library has been updated to the new Notes format, devices that still use IMAP will no longer be able to view the upgraded notes. The new Notes format also syncs to any Mac on the same iCloud account running [[OS X El Capitan|OS X 10.11]] or higher.<ref>{{Cite web|title = How to view your iOS 9 Notes on your OS X Yosemite Mac &#124; iMore|url = http://www.imore.com/how-view-your-ios-9-notes-your-os-x-yosemite-mac|accessdate = September 17, 2015|website = iMore|last = Caldwell|first = Serenity|date = September 17, 2015}}</ref>


On iPhone, iOS 9 changed appearance of its app switcher from side-by-side view in iOS 8 to card-like view.<ref>[https://ijunkie.com/ios-9-ui-changes/ A look at the 23 UI changes in iOS 9 you may have missed]</ref>
Secure notes, introduced in iOS 9.3, lets an iOS user protect their notes with either a passcode or Touch ID.<ref>{{cite web|title=iOS Updates - Apple|url=https://www.apple.com/ios/updates|website=Apple|accessdate=March 22, 2016}}</ref>


===Maps===
=== Night Shift ===
{{See also|Night Shift (software)}}
{{Main|Apple Maps}}[[Apple Maps]] adds support for transit directions in [[Baltimore]], [[Berlin]], [[Chicago]], [[London]], [[Los Angeles]], [[Mexico City]], [[New York City]], [[Paris]], [[Philadelphia]], [[San Francisco]], [[Shanghai]], [[Toronto]], and [[Washington D.C.]], along with several other cities in China at launch, which will expand as Apple maps out more cities.<ref>{{cite web|last1=Tabini|first1=Marco|title=Apple Maps in iOS 9 adds public transit, local business search|url=http://www.macworld.com/article/2932429/apple-maps-in-ios-9-adds-public-transit-local-business-search.html|website=Macworld|accessdate=June 10, 2015}}</ref> The Maps app now also makes recommendations to points of interest, restaurants, etc. based on what time of day it is or the users' interests. Map also display place cards for landmarks, cities and text taken from Wikipedia.<ref>{{cite web|url=https://support.apple.com/kb/DL1842|title=iOS 9.0.1|website=apple.com}}</ref> Apple has claimed that information collected by iOS this way will not be shared with the company or third parties. There will also be an icon in the details view of a retailer to indicate that they support [[Apple Pay]]. The transit feature is not available on the iPhone 4S, iPad 2, iPad Mini (1st generation), and iPod Touch (5th generation).

Night Shift is a display mode introduced in iOS 9.3. The mode shifts the colors of the device's display to be warmer, similar to [[F.lux]], a popular program for [[Microsoft Windows]] and [[macOS|Apple macOS]] computers.<ref>{{cite web|url=http://www.macrumors.com/2016/01/11/apple-ios-9-3-night-shift/|title=Apple Introduces New 'Night Shift' Feature in iOS 9.3|last=Clover|first=Juli|date=January 11, 2016|website=[[MacRumors]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161028063833/http://www.macrumors.com/2016/01/11/apple-ios-9-3-night-shift/|archive-date=October 28, 2016}}</ref><ref>{{cite web|url=http://appleinsider.com/articles/16/03/22/why-apples-night-shift-in-ios-93-will-help-you-get-a-better-nights-sleep|title=Why Apple's Night Shift in iOS 9.3 will help you get a better night's sleep|date=March 22, 2016|website=AppleInsider|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161225221935/http://appleinsider.com/articles/16/03/22/why-apples-night-shift-in-ios-93-will-help-you-get-a-better-nights-sleep|archive-date=December 25, 2016}}</ref> When enabled, it uses the device's clock and geographic location to determine when to turn the feature on or off. Optionally, the user can set a manual schedule, or not have a schedule at all. For ease of access, there is a new Night Shift toggle in the Control Center. The settings for Night Shift are located under "Display and Brightness" in the Settings app, and on top of enabling the feature and setting a schedule, the user can also set the warmth of the display.<ref name="About Night Shift">{{cite web|url=http://www.macrumors.com/how-to/use-ios-9-3-night-shift-mode/|title=How to Use Night Shift Mode in iOS 9.3|last=Clover|first=Juli|date=January 14, 2016|website=[[MacRumors]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161120081201/http://www.macrumors.com/how-to/use-ios-9-3-night-shift-mode/|archive-date=November 20, 2016}}</ref>

Despite being introduced in iOS 9.3 in March 2016, it wasn't possible to use Night Shift and Low Power Mode simultaneously until the release of iOS 9.3.2 two months later.<ref name="Night Shift and Low Power Mode">{{cite web |first=Juli |last=Clover |title=Apple Releases iOS 9.3.2 With Support for Simultaneous Night Shift/Low Power Mode Usage |url=http://www.macrumors.com/2016/05/16/apple-releases-ios-9-3-2/ |website=[[MacRumors]] |date=May 16, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161117213604/http://www.macrumors.com/2016/05/16/apple-releases-ios-9-3-2/ |archive-date=November 17, 2016 }}</ref> Night Shift requires a 64-bit processor only found in the [[Apple A7]] or newer chips, which means older iOS devices, including the [[iPhone 4s]], [[iPhone 5]], [[iPhone 5c]], [[iPad 2]], [[iPad (3rd generation)|iPad 3]], [[iPad (4th generation)|iPad 4]], [[iPad Mini (first generation)|first-generation iPad Mini]], and [[iPod Touch (5th generation)|5th generation iPod Touch]], do not receive Night Shift mode.<ref name="About Night Shift" />

=== Performance ===
iOS 9 includes performance and speed improvements thanks to the expanded use of the [[Metal (API)|Metal API]]. Metal was introduced in [[iOS 8]] and was previously limited to game developers. In iOS 9, the use of Metal is expanded to let it handle many of the core user interface elements and graphics.<ref>{{cite web|url=http://www.ibtimes.co.uk/9-reasons-why-ios-9-will-make-your-old-iphone-feel-like-new-1519281|title=9 reasons why iOS 9 will make your old iPhone feel like new|last=McClelland|first=David|date=September 10, 2015|website=[[International Business Times]]|publisher=[[IBT Media]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20170420090946/http://www.ibtimes.co.uk/9-reasons-why-ios-9-will-make-your-old-iphone-feel-like-new-1519281|archive-date=April 20, 2017}}</ref>

=== Proactivity ===
Intelligence is one of the main features in iOS 9, consisting of the newly integrated [[Siri]] and Search (previously known as Spotlight), as well as "proactivity" throughout the operating system. iOS is now more aware of contextual information (such as time and location), and proactively provides the user with what they may need in advance to save them time and effort. When typing, Search has also been improved to display instant answers in an at-a-glance, widget-like format, similar to that provided in the Siri interface. Search can display current weather, sports scores, news, and more. The Search screen with proactive suggestions can be accessed either by pulling down the notifications window, in the Safari web browser through the search bar, and to the left on the home screen.<ref>{{cite web |first=Andrew |last=Cunningham |title=iOS 9, thoroughly reviewed |url=https://arstechnica.com/apple/2015/09/ios-9-thoroughly-reviewed/5/#h5 |website=[[Ars Technica]] |publisher=[[Condé Nast]] |date=September 16, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221000039/http://arstechnica.com/apple/2015/09/ios-9-thoroughly-reviewed/5/#h5 |archive-date=December 21, 2016 }}</ref>

The intelligence also extends into apps. For instance, in Mail, events can be automatically added to Calendar if details are found in the message content, and likely additional recipients are suggested during message composition. Siri is also aware of what is currently on screen when it is engaged by holding down the home button.<ref>{{cite web |first=David |last=Goldman |title=9 things you'll love about iOS 9 |url=https://money.cnn.com/gallery/technology/2015/06/09/9-best-ios-9-features |publisher=[[CNN]] |date=June 9, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160304201101/http://money.cnn.com/gallery/technology/2015/06/09/9-best-ios-9-features/ |archive-date=March 4, 2016 }}</ref>

=== Security ===
iOS 9 introduces multiple security enhancements. It introduces a 6-digit passcode as a default, an extra two digits over the previous 4-digit default,<ref>{{cite web |first=Zack |last=Whittaker |title=Apple just relieved a big security headache for work iPhones |url=https://www.zdnet.com/article/apple-ibm-passcode-security-six-digits-event-september-9/ |website=[[ZDNet]] |publisher=[[CBS Interactive]] |date=September 10, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160304111616/http://www.zdnet.com/article/apple-ibm-passcode-security-six-digits-event-september-9/ |archive-date=March 4, 2016 }}</ref> as well as support for [[two-factor authentication]].<ref>{{cite web |first=Lee |last=Munson |title=iOS 9 enhances two factor authentication, introduces 6-digit passcodes |url=https://nakedsecurity.sophos.com/2015/06/10/ios-9-enhances-two-factor-authentication-introduces-6-digit-passcodes/ |website=Naked Security |date=June 10, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161210013132/https://nakedsecurity.sophos.com/2015/06/10/ios-9-enhances-two-factor-authentication-introduces-6-digit-passcodes/ |archive-date=December 10, 2016 }}</ref> 6-digit passcodes were much more secure because there were now 1 million possible passcode combinations compared to just 10,000 for 4-digit passcodes.

The original iOS 9 release in September 2015 fixed a security issue in previous iOS versions, in which a "flaw allowed anyone within range of an [[AirDrop]] user to install malware on a target device and tweak iOS settings so the exploit would still work if the victim rejected an incoming AirDrop file".<ref>{{cite web |first=Thomas |last=Fox-Brewster |title=One Great Reason To Update To iOS 9 – A Nasty Silent AirDrop Attack Is In Town |url=https://www.forbes.com/sites/thomasbrewster/2015/09/16/airdrop-ios-vulnerability/ |website=[[Forbes]] |date=September 16, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20170215221433/http://www.forbes.com/sites/thomasbrewster/2015/09/16/airdrop-ios-vulnerability/ |archive-date=February 15, 2017 }}</ref><ref>{{cite web |first=Charlie |last=Osborne |title=Apple iOS 9 fixes serious AirDrop vulnerability |url=https://www.cnet.com/news/apple-airdrop-flaw-leaves-users-vulnerable-to-exploit/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=September 17, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221090252/https://www.cnet.com/news/apple-airdrop-flaw-leaves-users-vulnerable-to-exploit/ |archive-date=December 21, 2016 }}</ref>

=== Settings ===
The Settings app in iOS 9 includes a new search bar that makes it easier to find settings and options.<ref>{{cite web |first=Susie |last=Ochs |title=Settings in iOS 9: Every notable change you need to know |url=http://www.macworld.com/article/2985017/ios/settings-in-ios-9-every-notable-change-you-need-to-know.html |website=[[Macworld]] |publisher=[[International Data Group]] |date=September 21, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161127171601/http://www.macworld.com/article/2985017/ios/settings-in-ios-9-every-notable-change-you-need-to-know.html |archive-date=November 27, 2016 }}</ref><ref>{{cite web |first=Osas |last=Obaizamomwan |title=How to search Settings on iPhone or iPad in iOS 9 |url=http://www.iphonehacks.com/2015/10/how-to-search-settings-on-iphone-ipad-in-ios-9.html |website=iPhoneHacks.com |date=October 7, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20171206201105/http://www.iphonehacks.com/2015/10/how-to-search-settings-on-iphone-ipad-in-ios-9.html |archive-date=December 6, 2017 }}</ref><ref>{{cite web |title=The best iOS 9 features you don't know about yet |url=https://www.theverge.com/2015/9/18/9352327/new-ios-9-features-iphone-tips-tricks-guide |website=[[The Verge]] |publisher=[[Vox Media]] |date=September 18, 2015 |access-date=March 26, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170109180831/http://www.theverge.com/2015/9/18/9352327/new-ios-9-features-iphone-tips-tricks-guide |archive-date=January 9, 2017 }}</ref> The user also has options to have notifications be grouped by which app they came from,<ref name="Forbes 25">{{cite web |first=Gordon |last=Kelly |title=Apple iOS 9 Has 25 Great Secret Features |url=https://www.forbes.com/sites/gordonkelly/2015/09/19/apple-ios-9-secrets/ |website=[[Forbes]] |date=September 19, 2015 |access-date=April 15, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170415105224/https://www.forbes.com/sites/gordonkelly/2015/09/19/apple-ios-9-secrets/ |archive-date=April 15, 2017 }}</ref><ref>{{cite web |first=Marty |last=Edwards |title=iOS 9 tips: Free Notification Center alerts from app groupings |url=http://appleinsider.com/articles/15/09/22/ios-9-tips-display-notification-center-alerts-individually-by-time |website=AppleInsider |date=September 22, 2015 |access-date=April 15, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170415200417/http://appleinsider.com/articles/15/09/22/ios-9-tips-display-notification-center-alerts-individually-by-time |archive-date=April 15, 2017 }}</ref> and the ability to turn on or off Shake to Undo.<ref name="Redmond 45">{{cite web |first=Uzair |last=Ghani |title=The 45 Hidden iOS 9 Features Apple Didn't Tell You About |url=http://www.redmondpie.com/the-hidden-ios-9-features-apple-didnt-tell-you-about/ |website=Redmond Pie |date=June 16, 2015 |access-date=April 15, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170415104427/http://www.redmondpie.com/the-hidden-ios-9-features-apple-didnt-tell-you-about/ |archive-date=April 15, 2017 }}</ref>

=== Other changes ===
On [[iPad]], a two-finger drag on the keyboard moves the cursor freely like a traditional trackpad, making positioning the cursor and selecting text easier.<ref>{{cite web |first=Ashleigh |last=Macro |title=Complete guide to iOS 9 Multitasking on the iPad |url=http://www.macworld.co.uk/feature/ipad/everything-you-need-know-about-ios-9-on-ipad-3621941/ |website=[[Macworld]] |publisher=[[International Data Group]] |date=September 14, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20170106151212/http://www.macworld.co.uk/feature/ipad/everything-you-need-know-about-ios-9-on-ipad-3621941/ |archive-date=January 6, 2017 }}</ref> The keyboard-to-trackpad feature is also extended to [[iPhone 6S|iPhone 6S and 6S Plus]], in which users can 3D Touch (force press) the keyboard to enable the trackpad.<ref>{{cite web |title=How to use iOS 9's keyboard as a trackpad with 3D Touch on iPhone 6s |url=http://appleinsider.com/articles/15/10/11/how-to-use-ios-9s-keyboard-as-a-trackpad-with-3d-touch-on-iphone-6s- |website=AppleInsider |date=October 11, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221090520/http://appleinsider.com/articles/15/10/11/how-to-use-ios-9s-keyboard-as-a-trackpad-with-3d-touch-on-iphone-6s- |archive-date=December 21, 2016 }}</ref> Also on the iPad, a shortcut bar has been added for cut, copy, paste, undo, and redo functions,<ref>{{cite web |first=Luke |last=Filipowicz |title=How to use the keyboard shortcut bar on iPad |url=http://www.imore.com/how-use-shortcut-bar-ipad |website=[[iMore]] |date=March 28, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161207193111/http://www.imore.com/how-use-shortcut-bar-ipad |archive-date=December 7, 2016 }}</ref> and folders display 16 apps per page in a 4-by-4 arrangement, compared to 9 on the iPhone,<ref>{{cite web |first=Neil |last=Hughes |title=Inside iOS 9: iPad home screen folders now display 16 apps per page |url=http://appleinsider.com/articles/15/07/08/ipad-home-screen-folders-now-display-16-apps-per-page-in-apples-new-ios-9-beta-3 |website=AppleInsider |date=July 8, 2015 |access-date=March 19, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170320052107/http://appleinsider.com/articles/15/07/08/ipad-home-screen-folders-now-display-16-apps-per-page-in-apples-new-ios-9-beta-3 |archive-date=March 20, 2017 }}</ref> allowing for an increased total of 240 apps in a single folder.<ref>{{cite web |first=Chance |last=Miller |title=iOS 9 lets you store 105 more apps per folder on the iPad |url=https://9to5mac.com/2015/07/08/new-folders-ios-9/ |website=9to5Mac |date=July 8, 2015 |access-date=October 15, 2017 |url-status=live |archive-url=https://web.archive.org/web/20171015150809/https://9to5mac.com/2015/07/08/new-folders-ios-9/ |archive-date=October 15, 2017 }}</ref>

iOS 9 introduced [[Wi-Fi]] Assist, a feature (enabled by default) that automatically switches the phone to cellular data when the Wi-Fi connection is spotty.<ref>{{cite web |first=Roberto |last=Baldwin |title=iOS 9's WiFi Assist is killing your data plan |url=https://www.engadget.com/2015/09/28/ios-9-wifi-assist/ |website=[[Engadget]] |publisher=[[AOL]] |date=September 28, 2015 |access-date=January 8, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170105083132/https://www.engadget.com/2015/09/28/ios-9-wifi-assist/ |archive-date=January 5, 2017 }}</ref><ref>{{cite web |first=Chris |last=Smith |title=There's a great new iOS 9 feature you might have to turn off right now |url=http://bgr.com/2015/09/28/ios-9-features-wi-fi-assist/ |website=[[Boy Genius Report|BGR]] |publisher=[[Penske Media Corporation]] |date=September 28, 2015 |access-date=January 8, 2017 |url-status=live |archive-url=https://web.archive.org/web/20161226093541/http://bgr.com/2015/09/28/ios-9-features-wi-fi-assist/ |archive-date=December 26, 2016 }}</ref><ref>{{cite web |first=Alex |last=Hern |title=Ignore the haters: Wi-Fi Assist is the best new feature in iOS 9 |url=https://www.theguardian.com/technology/2015/sep/30/ignore-the-haters-wi-fi-assist-is-ios-9 |website=[[The Guardian]] |date=September 30, 2015 |access-date=January 8, 2017 |url-status=live |archive-url=https://web.archive.org/web/20161013111413/https://www.theguardian.com/technology/2015/sep/30/ignore-the-haters-wi-fi-assist-is-ios-9 |archive-date=October 13, 2016 }}</ref>

Whenever the user is presented with flight information, the user can click on a link to view a preview for that flight.<ref>{{cite web |first=Karissa |last=Bell |title=12 hidden features in iOS 9 |url=http://mashable.com/2015/09/17/ios-9-hidden-features/ |website=[[Mashable]] |date=September 17, 2015 |access-date=March 26, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170324160947/http://mashable.com/2015/09/17/ios-9-hidden-features/ |archive-date=March 24, 2017 }}</ref><ref>{{cite web |title=Apple brings native flight tracking support to iOS 9 and OS X El Capitan |url=http://appleinsider.com/articles/15/08/12/apple-brings-native-flight-tracking-support-to-ios-9-and-os-x-el-capitan |website=AppleInsider |date=August 12, 2015 |access-date=June 10, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170329211804/http://appleinsider.com/articles/15/08/12/apple-brings-native-flight-tracking-support-to-ios-9-and-os-x-el-capitan |archive-date=March 29, 2017 }}</ref>

== App features ==
=== iBooks ===
With iOS 9.3 and later, PDFs saved to the [[Apple Books|iBooks]] application via [[Safari (web browser)|Safari]] or [[iTunes]] can be synced with [[iCloud]].<ref>{{cite web|url=https://9to5mac.com/2016/01/11/ios-9-3-gallery-night-shift-new-3d-touch-features-notes-touch-id-more/|title=iOS 9.3 Gallery & Feature List: Night Shift, New 3D Touch features, updated Health app, Notes Touch ID, more|last=Gurman|first=Mark|date=January 11, 2016|website=9to5Mac|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20170128213424/https://9to5mac.com/2016/01/11/ios-9-3-gallery-night-shift-new-3d-touch-features-notes-touch-id-more/|archive-date=January 28, 2017}}</ref>

=== iCloud ===
iOS 9 has a setting that enables an [[iCloud Drive]] app on the home screen. iCloud Drive lets the user save and browse files and folders in [[iCloud]].<ref>{{cite web|url=http://www.macrumors.com/2015/06/08/dedicated-icloud-drive-app/|title=Dedicated iCloud Drive App Included Within Settings of iOS 9|last=Broussard|first=Mitchel|date=June 8, 2015|website=[[MacRumors]]|access-date=December 29, 2016|url-status=live|archive-url=https://web.archive.org/web/20170226131147/https://www.macrumors.com/2015/06/08/dedicated-icloud-drive-app/|archive-date=February 26, 2017}}</ref><ref>{{cite web|url=https://www.theverge.com/2015/6/9/8750365/icloud-drive-app-ios-9|title=iOS 9 has a hidden iCloud Drive app|last=Byford|first=Sam|date=June 9, 2015|website=[[The Verge]]|publisher=[[Vox Media]]|access-date=December 29, 2016|url-status=live|archive-url=https://web.archive.org/web/20161229171431/http://www.theverge.com/2015/6/9/8750365/icloud-drive-app-ios-9|archive-date=December 29, 2016}}</ref><ref>{{cite web|url=https://9to5mac.com/2015/06/08/icloud-drive-app/|title=iCloud Drive gets its own app on iOS 9, but it's hidden by default|last=Beasley|first=Mike|date=June 8, 2015|website=9to5Mac|access-date=December 29, 2016|url-status=live|archive-url=https://web.archive.org/web/20161229171718/https://9to5mac.com/2015/06/08/icloud-drive-app/|archive-date=December 29, 2016}}</ref>

=== Health ===
The Health app, introduced in iOS 8, has received landscape mode on iPhone. It also added support for reproductive health, UV exposure, water intake and sedentary state data types.<ref>{{cite web|url=http://appleinsider.com/articles/15/06/09/apples-expands-healthkit-in-ios-9-to-track-uv-exposure-water-intake-sexual-activity-ovulation|title=Apple expands HealthKit in iOS 9 to track sexual activity, ovulation, UV exposure, water intake|last=Hughes|first=Neil|date=June 9, 2015|website=AppleInsider|access-date=February 18, 2017|url-status=live|archive-url=https://web.archive.org/web/20170209235235/http://appleinsider.com/articles/15/06/09/apples-expands-healthkit-in-ios-9-to-track-uv-exposure-water-intake-sexual-activity-ovulation|archive-date=February 9, 2017}}</ref>

In iOS 9.3, it also tracks sleep, exercise, and weight from the [[Apple Watch]].<ref>{{cite web|url=https://www.theguardian.com/technology/2016/mar/21/ios-93-better-sleep-health-app-and-fingerprint-locking-for-notes|title=iOS 9.3 now available with Night Shift mode to help you sleep|last=Gibbs|first=Samuel|date=March 21, 2016|website=[[The Guardian]]|access-date=February 18, 2017|url-status=live|archive-url=https://web.archive.org/web/20170218234639/https://www.theguardian.com/technology/2016/mar/21/ios-93-better-sleep-health-app-and-fingerprint-locking-for-notes|archive-date=February 18, 2017}}</ref>

=== Messages ===
[[Messages (software)|Messages]] now allows the user to search for text and have that text be highlighted (and scrolled).<ref>{{cite web|url=https://www.foxnews.com/tech/2015/09/17/10-more-hidden-features-in-ios.html|title=10 more hidden features in iOS 9|last=Epstein|first=Zach|date=September 17, 2015|website=[[Fox News]]|publisher=[[Fox Entertainment Group]]|access-date=March 26, 2017|url-status=live|archive-url=https://web.archive.org/web/20170327081731/http://www.foxnews.com/tech/2015/09/17/10-more-hidden-features-in-ios.html|archive-date=March 27, 2017}}</ref>

=== Maps ===
[[Apple Maps]] adds support for transit directions in [[Baltimore]], [[Berlin]], [[Chicago]], [[London]], [[Los Angeles]], [[Mexico City]], [[New York City]], [[Paris]], [[Philadelphia]], [[San Francisco]], [[Toronto]], and [[Washington, D.C.]], along with "over 300 locations in [[China]]."<ref>{{cite web|url=http://www.macworld.com/article/2932429/ios/apple-maps-in-ios-9-adds-public-transit-local-business-search.html|title=Apple Maps in iOS 9 adds public transit, local business search|last=Tabini|first=Marco|date=June 8, 2015|website=[[Macworld]]|publisher=[[International Data Group]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20160817191150/http://www.macworld.com/article/2932429/ios/apple-maps-in-ios-9-adds-public-transit-local-business-search.html|archive-date=August 17, 2016}}</ref>

The Maps app now also has enhanced location details, including a Nearby feature that recommends shops, restaurants and places to drink in close proximity to the user. For places serving food, users can specify exactly what type of food they want.<ref>{{cite web|url=http://www.macworld.com/article/2952647/ios/hands-on-with-maps-in-ios-9-introducing-public-transit-and-more-accurate-data.html|title=Hands-on with Maps in iOS 9: Introducing public transit and more accurate data|last=McGarry|first=Caitlin|date=September 16, 2015|website=[[Macworld]]|publisher=[[International Data Group]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161010080659/http://www.macworld.com/article/2952647/ios/hands-on-with-maps-in-ios-9-introducing-public-transit-and-more-accurate-data.html|archive-date=October 10, 2016}}</ref><ref>{{cite web|url=http://www.macrumors.com/2015/09/16/ios-9-apple-maps-transit-nearby/|title=Inside iOS 9: Apple Maps Gains Transit Mode and Nearby Search|last=Rossignol|first=Joe|date=September 16, 2015|website=[[MacRumors]]|access-date=December 20, 2016|url-status=live|archive-url=https://web.archive.org/web/20161022065148/http://www.macrumors.com/2015/09/16/ios-9-apple-maps-transit-nearby/|archive-date=October 22, 2016}}</ref>

=== News ===
iOS 9 includes a new [[Apple News]] app (replacing the [[Newsstand (application)|Newsstand]] app), which aggregates news from different sources in a similar style as [[Flipboard]].<ref>{{cite web |first=Jason |last=Cipriani |title=Get started with iOS 9's News app |url=https://www.cnet.com/how-to/get-started-with-ios-9s-news-app/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=September 11, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160812235332/http://www.cnet.com/how-to/get-started-with-ios-9s-news-app/ |archive-date=August 12, 2016 }}</ref> The app features a "mobile-formatted layout that loads quickly and has informative animations and full-bleed images".<ref name="Announce"/> Additionally, News supports [[RSS]] feeds from the Safari web browser.<ref>{{cite web |first=Juli |last=Clover |title=iOS 9 Beta 3 Tidbits: 4x4 Folders on iPad, Screenshot and Selfie Folders, News App, and More |url=http://www.macrumors.com/2015/07/08/ios-9-beta-3-tidbits/ |website=[[MacRumors]] |date=July 8, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161022174821/http://www.macrumors.com/2015/07/08/ios-9-beta-3-tidbits/ |archive-date=October 22, 2016 }}</ref> At launch, the News app was only available in the United States, but it was expanded to the United Kingdom and Australia with the iOS 9.1 update.<ref name="Apple News in UK and Australia">{{cite web |first=Juli |last=Clover |title=Apple Releases iOS 9.1 With New Emoji, Live Photos Improvements |url=http://www.macrumors.com/2015/10/21/apple-releases-ios-9-1/ |website=[[MacRumors]] |date=October 21, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160912045820/http://www.macrumors.com/2015/10/21/apple-releases-ios-9-1/ |archive-date=September 12, 2016 }}</ref>

In March 2016, Apple opened the News platform to all news agencies, including independent bloggers.<ref>{{cite web |first=Catherine |last=Shu |title=Apple opens its iOS News app to all publishers |url=https://techcrunch.com/2016/03/16/apple-news-opens-up/ |website=[[TechCrunch]] |publisher=[[AOL]] |date=March 16, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160911000054/https://techcrunch.com/2016/03/16/apple-news-opens-up/ |archive-date=September 11, 2016 }}</ref><ref>{{cite web |first=Emily Jane |last=Fox |title=Apple just opened its News app in a big way |url=https://www.vanityfair.com/news/2016/03/apple-news-opens-to-publishers |website=[[Vanity Fair (magazine)|Vanity Fair]] |publisher=[[Condé Nast]] |date=March 15, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161018045330/http://www.vanityfair.com/news/2016/03/apple-news-opens-to-publishers |archive-date=October 18, 2016 }}</ref>

=== Notes ===
The Notes app has received a number of enhancements in iOS 9, including the ability to draw sketches with a number of different tools, including a ruler for straight lines. Images can also be added, and links to websites and Map locations get a more prominent, visual appearance when added to notes. On the iPad, and on iPhone in landscape mode, Notes has a range of color options for drawing, as well as an eraser. Advanced formatting options including checked, bulleted, dashed and numbered lists.<ref>{{cite web |first=Neil |last=Hughes |title=Inside iOS 9: Apple's Notes app is greatly enhanced with drawings, lists, pictures, links & more |url=http://appleinsider.com/articles/15/06/12/inside-ios-9-apples-notes-app-is-greatly-enhanced-with-drawings-lists-pictures-links-more |website=AppleInsider |date=June 12, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161116155337/http://appleinsider.com/articles/15/06/12/inside-ios-9-apples-notes-app-is-greatly-enhanced-with-drawings-lists-pictures-links-more/ |archive-date=November 16, 2016 }}</ref><ref>{{cite web |first=Caitlin |last=McGarry |title=Meet the new Notes, iOS 9's feature-packed Evernote rival |url=http://www.macworld.com/article/2947866/ios/meet-the-new-notes-ios-9s-feature-packed-evernote-rival.html |website=[[Macworld]] |publisher=[[International Data Group]] |date=September 16, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20170129041137/http://www.macworld.com/article/2947866/ios/meet-the-new-notes-ios-9s-feature-packed-evernote-rival.html |archive-date=January 29, 2017 }}</ref>

The app also supports [[iCloud]] and allows for easy folder creation.<ref>{{cite web |first=Nate |last=Ralph |title=Apple iOS 9 review |url=https://www.cnet.com/products/apple-ios-9/review/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=September 16, 2015 |access-date=April 21, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170422034938/https://www.cnet.com/products/apple-ios-9/review/ |archive-date=April 22, 2017 }}</ref>

A secure notes feature, introduced in iOS 9.3,<ref name="1970 Bug Fix and new Notes app">{{cite web |first=Juli |last=Clover |title=Apple Releases iOS 9.3 With Night Shift, New Quick Actions, App Improvements, '1970' Bug Fix and More |url=http://www.macrumors.com/2016/03/21/apple-releases-ios-9-3/ |website=[[MacRumors]] |date=March 21, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161027173442/http://www.macrumors.com/2016/03/21/apple-releases-ios-9-3/ |archive-date=October 27, 2016 }}</ref> lets an iOS user protect their notes with either a passcode or Touch ID.<ref>{{cite web |first=Jason |last=Cipriani |title=How to secure the Notes app on iOS 9.3 |url=https://www.cnet.com/how-to/how-to-secure-the-notes-app-on-ios-9-3/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=March 21, 2016 |access-date=December 19, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161220222811/https://www.cnet.com/how-to/how-to-secure-the-notes-app-on-ios-9-3/ |archive-date=December 20, 2016 }}</ref>


===Multitasking===
=== Photos ===
The Photos app on iOS 9 included the improved scrubber bar in the photo viewer, "Screenshots" and "Selfies" albums, and the ability to hold and select multiple photos easily, without having to delete them individually.<ref>{{cite web|url=https://www.independent.co.uk/life-style/gadgets-and-tech/news/ios-9-to-have-special-photo-albums-for-screenshots-and-selfies-10376996.html|title=iOS 9 to have special photo albums for screenshots and selfies|last=Griffin|first=Andrew|date=July 9, 2015|website=[[The Independent]]|access-date=March 26, 2017|url-status=live|archive-url=https://web.archive.org/web/20170216070122/http://www.independent.co.uk/life-style/gadgets-and-tech/news/ios-9-to-have-special-photo-albums-for-screenshots-and-selfies-10376996.html|archive-date=February 16, 2017}}</ref> It also allows the user to hide sensitive material through a new Hide option.<ref>{{cite web|url=http://fieldguide.gizmodo.com/23-things-you-can-do-in-ios-9-that-you-couldnt-do-in-io-1731300214|title=23 Things You Can Do in iOS 9 That You Couldn't Do in iOS 8|last=Nield|first=David|date=September 17, 2015|website=[[Gizmodo]]|access-date=March 26, 2017|url-status=live|archive-url=https://web.archive.org/web/20170204044132/http://fieldguide.gizmodo.com/23-things-you-can-do-in-ios-9-that-you-couldnt-do-in-io-1731300214|archive-date=February 4, 2017}}</ref><ref>{{cite web|url=https://www.igeeksblog.com/how-to-hide-multiple-photos-videos-on-iphone-or-ipad-in-ios-9/|title=How to Hide Multiple Photos/Videos on iPhone or iPad in iOS 9|last=Padhiyar|first=Jignesh|website=iGeeksBlog|access-date=March 26, 2017|url-status=live|archive-url=https://web.archive.org/web/20170327080258/https://www.igeeksblog.com/how-to-hide-multiple-photos-videos-on-iphone-or-ipad-in-ios-9/|archive-date=March 27, 2017}}</ref> The app also allows the user to [[multi-touch|pinch to zoom]] while playing a video.<ref name="Redmond 45"/><ref name="Forbes 25"/>
iOS 9 also adds a number of features to the [[iPad]] to improve productivity. These include Slide Over, Split View, and [[Picture-in-picture|Picture in Picture]], for enhanced multitasking, similar to the experience found on [[OS X El Capitan]]. Slide Over allows the user to pull in a second app with a swipe from the right edge of the display. This app takes up the width of 33% of the screen size, and disables interactivity within the full screen app, which takes up 66% of the display, allowing users to perform quick tasks and then dismiss the app again. If the user taps on the handle next to the Slide Over window, or extends it further towards the left of the screen, the user enters Split View, which allows users to interact with two apps simultaneously side-by-side in a 50%/50% split. Users can switch to another app in either Slide Over mode or Split-Screen view by pulling down on the handle on top of either app and selecting another app from the list to replace the existing one. The Split-Screen Multitasking feature is only be available to [[iPad Air 2]], [[iPad mini 4]], and [[iPad Pro]]. However, the Slide Over and Picture in Picture feature will be available on the iPad Air, iPad Air 2, iPad mini 2 and higher, and the iPad Pro.<ref name="verge" /><ref>{{cite web|last1=Weinberger|first1=Matt|title=The Apple iPad is your next work computer|url=http://www.businessinsider.com/wwdc-apple-ipad-2015-6|website=Business Insider|publisher=[[Business Insider]]|accessdate=June 10, 2015}}</ref> The iPad 2, 3rd generation, 4th generation, and Mini (1st Generation) will not receive any of these multitasking updates.<ref>{{cite web|last1=Beasley|first1=Mike|title=Apple announces split-screen multitasking for iPad in iOS 9|url=http://9to5mac.com/2015/06/08/ipad-split-screen-multitasking/|website=9to5mac.com|accessdate=July 22, 2015|date=June 8, 2015}}</ref>


=== Safari ===
When banner notifications are tapped, causing another app to open, a back button at the top-left corner of the screen has been added, bringing the user back to the previous app.
With the release of iOS 9, the [[Safari (web browser)|Safari]] web browser allows for third-party content blocking apps.<ref>{{cite web |first=Glenn |last=Fleishman |title=Hands-on with content blocking Safari extensions in iOS 9 |url=http://www.macworld.com/article/2984483/ios/hands-on-with-content-blocking-safari-extensions-in-ios-9.html |website=[[Macworld]] |publisher=[[International Data Group]] |date=September 17, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161222190647/http://www.macworld.com/article/2984483/ios/hands-on-with-content-blocking-safari-extensions-in-ios-9.html |archive-date=December 22, 2016 }}</ref><ref>{{cite web |first=Oscar |last=Raymundo |title=How to enable Safari ad-blockers in iOS 9 |url=http://www.macworld.com/article/2986298/ios/how-to-enable-safari-ad-blockers-in-ios-9.html |website=[[Macworld]] |publisher=[[International Data Group]] |date=September 28, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221091117/http://www.macworld.com/article/2986298/ios/how-to-enable-safari-ad-blockers-in-ios-9.html |archive-date=December 21, 2016 }}</ref> Safari also allows users to customize the appearance of the Reader mode, with options for font and background color.<ref name="Redmond 45" /><ref>{{cite web |first=Jason |last=Cipriani |title=Customize the appearance of Safari's Reader mode on iOS 9 |url=https://www.cnet.com/how-to/customize-the-appearance-of-safaris-reader-mode-on-ios-9/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=September 3, 2015 |access-date=April 15, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170415104115/https://www.cnet.com/how-to/customize-the-appearance-of-safaris-reader-mode-on-ios-9/ |archive-date=April 15, 2017 }}</ref>


A few days after the release of iOS 9, [[ad blocking]] software had topped the [[App Store (iOS)|App Store]] charts, with Marco Arment, developer of a Peace app, saying that "web advertising and behavioral tracking is out of control. They're unacceptably creepy, bloated, annoying, and insecure, and they're getting worse at an alarming pace."<ref>{{cite web |first=Lance |last=Whitney |title=Ad blockers top Apple charts as iOS 9 debuts |url=https://www.cnet.com/news/ad-blockers-top-apple-charts-as-ios-9-debuts/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=September 17, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160906053530/http://www.cnet.com/news/ad-blockers-top-apple-charts-as-ios-9-debuts/ |archive-date=September 6, 2016 }}</ref><ref>{{cite web |first=Matthew |last=Miller |title=Ad blockers help some and hurt others: Top Apple iOS app pulled for being too blunt |url=https://www.zdnet.com/article/ad-blockers-help-some-and-hurt-others-top-apple-ios-app-pulled-for-being-too-blunt/ |website=[[ZDNet]] |publisher=[[CBS Interactive]] |date=September 19, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160807184900/http://www.zdnet.com/article/ad-blockers-help-some-and-hurt-others-top-apple-ios-app-pulled-for-being-too-blunt/ |archive-date=August 7, 2016 }}</ref>
The app switcher is redesigned, with app previews stacked on each other that are swiped through in a carousel effect. It also removes the recent contacts section found in iOS 8.


===Proactivity===
=== Watch ===
The Apple Watch app was renamed to simply Watch.
Intelligence is one of the main features in iOS 9, consisting of the newly integrated [[Siri]] and Search (previously known as Spotlight), as well as "proactivity" throughout the operating system. iOS is now more aware of contextual information (such as time and location), and proactively provides the user with what they may need in advance to save them time and effort. For example, the Search screen displays suggested apps, nearby points of interest from Maps and current news stories, based on time of day and location. When typing, Search has also been improved to display instant answers in an at-a-glance, widget-like format, similar to that provided in the Siri interface. Search can display current weather, sports scores, news, and more. The Search screen with proactive suggestions can be accessed by swiping to the left of the first home screen, as with the old Spotlight in iPhone OS 3 to 6. The new Search screen is not available on the iPhone 4S, iPad 2, iPad (3rd generation), iPad Mini (1st generation), and iPod Touch (5th generation).<ref name="featurefragmentation">{{Cite web|title = iOS 9, thoroughly reviewed &#124; Ars Technica|url = http://arstechnica.com/apple/2015/09/ios-9-thoroughly-reviewed/2/#h4|accessdate = September 17, 2015|website = Ars Technica|last = Cunningham|first = Andrew|date = September 16, 2015}}</ref> However, the Search field and Siri button can also be accessed by swiping down on any page of the home screen (as in iOS 7/8), but doesn't show any suggestions. The intelligence also extends into apps. For instance, in Mail, events can be automatically added to Calendar if details are found in the message content, and likely additional recipients are suggested during message composition. Siri is also aware of what is currently onscreen when it is engaged by holding down the home button. For example, if a user is shopping for something in Safari, the user can say, "Remind me about 'this' when I get home", and Siri will set a reminder with a [[geofence]] and attached link of the current page. The user can also ask Siri "Show me photos I took last June" and Siri will direct into the photos app, similar to the new Spotlight in [[OS X El Capitan|OS X 10.11 El Capitan]].<ref>{{cite news|last1=Goldman|first1=David|title=9 things you'll love about iOS 9|url=http://money.cnn.com/gallery/technology/2015/06/09/9-best-ios-9-features/|accessdate=June 10, 2015|work=[[CNN.com]]|publisher=[[CNN]]|date=June 9, 2015}}</ref>


===Wallet===
===Wallet===
The Passbook application was renamed [[Apple Wallet|Wallet]] in iOS 9 and includes many new changes, such as support for store loyalty cards, gift cards, Discover credit/debit cards, and [[Apple Pay]] in the UK.<ref>{{cite web |first=J.R. |last=Bookwalter |title=iOS 9 Wallet: Using the shortcut, loyalty cards and more |url=http://www.techradar.com/news/phone-and-communications/mobile-phones/ios-9-wallet-using-the-shortcut-loyalty-cards-and-more-1305062 |website=[[TechRadar]] |publisher=[[Future plc]] |date=September 24, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161127153807/http://www.techradar.com/news/phone-and-communications/mobile-phones/ios-9-wallet-using-the-shortcut-loyalty-cards-and-more-1305062 |archive-date=November 27, 2016 }}</ref> The Wallet app can also be accessed from the lock screen.<ref>{{cite web |first=Jason |last=Cipriani |title=How to access your Wallet from the lock screen on iOS 9 |url=https://www.cnet.com/how-to/how-to-access-your-wallet-from-the-lock-screen-on-ios-9/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=July 20, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160816080448/http://www.cnet.com/how-to/how-to-access-your-wallet-from-the-lock-screen-on-ios-9/ |archive-date=August 16, 2016 }}</ref>
{{Main|Wallet (application)}}The Passbook application was renamed [[Wallet (application)|Wallet]] in iOS 9 and includes many new changes such as support for store loyalty cards, gift cards, Discover Credit/Debit Card support, and Apple Pay in the UK.<ref>{{cite web|url=http://www.apple.com/ios/ios9-preview/|title=iOS 9 - What’s New|work=Apple}}</ref>


=== 3D Touch ===
== Developer APIs ==
In iOS 9.3, a "Music API" allows developers to integrate apps into the [[Apple Music]] streaming service.<ref>{{cite web |first=Juli |last=Clover |title=Apple Promotes New Apple Music API Introduced in iOS 9.3 |url=https://www.macrumors.com/2016/04/28/apple-music-new-api-ios-9-3/ |website=[[MacRumors]] |date=April 28, 2016 |access-date=June 11, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170321093736/https://www.macrumors.com/2016/04/28/apple-music-new-api-ios-9-3/ |archive-date=March 21, 2017 }}</ref>
{{Main|Force Touch}}


== Reception ==
3D Touch, which is only available on the iPhone 6s and iPhone 6s Plus, is incorporated into iOS 9. Quick Actions and shortcuts are added to applications that support this feature, and are triggered by pressing slightly harder on the application icon. 3D Touch on iOS 9 also introduces actions known as Peek and Pop, which lets users preview all kinds of content and act on it without having to actually open it. For example, a consumer can "Peek" (preview) at emails in the user's inbox by pressing lightly on the email, and by pressing harder, the user will "Pop" open the email and see its full content. Users can also preview a webpage if they have a link to it, by pressing the link gently, without having to leave the current application that they are on.<ref>{{cite web|url=http://www.cnet.com/videos/what-is-3d-touch/|title=What is 3D Touch?|work=[[CNET]]|publisher=[[CBS Interactive]]}}</ref> The taptic engine in iPhone 6s and 6s plus provide haptic feedback each time users press the screen harder.<ref>{{cite web|url=http://www.ibtimes.co.uk/iphone-6s-iphone-6s-plus-first-look-hands-3d-touch-1519139|title=Hands on with 3D Touch|work=IBTimes}}</ref>
iOS 9 received mostly positive reviews. Dan Seifert of ''[[The Verge]]'' praised the improvements in Proactivity and Siri, highlighting how the notification drop-down contains most, if not all, the information the user needs. Although he pointed out that Google's [[Google Now]] and Microsoft's [[Cortana (software)|Cortana]] personal assistants offer similar services, sometimes with "better and more varied ways" of achieving results, the improvements to iOS "lay the foundation for even more capabilities in the future."<ref>{{cite web |first=Dan |last=Seifert |title=Apple iOS 9 review |url=https://www.theverge.com/2015/9/16/9336351/apple-ios-9-review-iphone-release |website=[[The Verge]] |publisher=[[Vox Media]] |date=September 16, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20170110075530/http://www.theverge.com/2015/9/16/9336351/apple-ios-9-review-iphone-release |archive-date=January 10, 2017 }}</ref> Chris Velazco of ''[[Engadget]]'' liked the "small, thoughtful" design changes, but was most impressed by the new multitasking features for the iPad, referring to Split Screen as a "lovely little feature." He did, however, criticize the low number of decent-looking articles in Apple News, writing that "you'll notice a discrepancy in how some articles are handled – most are just formatted text on a white background with the outlet's logo up top" and also noted the limited number of locations in Apple Maps that, at launch, supported mass transit directions.<ref>{{cite web |first=Chris |last=Velazco |title=iOS 9 review: Making the basics work even better |url=https://www.engadget.com/2015/09/22/ios-9-review/ |website=[[Engadget]] |publisher=[[AOL]] |date=September 22, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161027185055/https://www.engadget.com/2015/09/22/ios-9-review/ |archive-date=October 27, 2016 }}</ref> Matt Swider of ''[[TechRadar]]'' wrote that Siri and Proactivity lists were "robust," and enjoyed that notifications were sorted chronologically rather than by app.<ref>{{cite web |first=Matt |last=Swider |title=iOS 9 review |url=http://www.techradar.com/reviews/pc-mac/software/operating-systems/ios-9-1300933/review |website=[[TechRadar]] |publisher=[[Future plc]] |date=September 19, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221091003/http://www.techradar.com/reviews/pc-mac/software/operating-systems/ios-9-1300933/review |archive-date=December 21, 2016 }}</ref> Samuel Gibbs of ''[[The Guardian]]'' welcomed the changes to the built-in apps such as drawing and photo insertion in Notes, unknown number identification from emails through Phone, and Siri automatically launching the Music app upon plugging in headphones. He also praised the updates to the keyboard, calling it "much easier to use."<ref>{{cite web |first=Samuel |last=Gibbs |title=iOS 9 review: an upgrade to jump for, or skip? |url=https://www.theguardian.com/technology/2015/sep/15/apple-ios-9-review-iphone-ipad-software-better-battery-life-multitasking-siri |website=[[The Guardian]] |date=September 15, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161024231613/https://www.theguardian.com/technology/2015/sep/15/apple-ios-9-review-iphone-ipad-software-better-battery-life-multitasking-siri |archive-date=October 24, 2016 }}</ref>


Apple faced a lawsuit over allegedly slowing the [[iPhone 4s]] with iOS 9.<ref>{{cite web |first=Raymond |last=Wong |title=Apple faces $5 million lawsuit over allegedly slowing the iPhone 4S with iOS 9 |url=http://mashable.com/2015/12/31/iphone-4s-ios-9-lawsuit/#eXy9FfemJPqJ |website=[[Mashable]] |date=December 31, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160621002805/http://mashable.com/2015/12/31/iphone-4s-ios-9-lawsuit/#eXy9FfemJPqJ |archive-date=June 21, 2016 }}</ref><ref>{{cite web |first=Mikey |last=Campbell |title=Lawsuit seeks more than $5M from Apple for slowing older iPhones with iOS 9 upgrade |url=http://appleinsider.com/articles/15/12/29/lawsuit-seeks-more-than-5m-from-apple-for-allegedly-slowing-older-iphones-with-ios-9-upgrade |website=AppleInsider |date=December 29, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161213202538/http://appleinsider.com/articles/15/12/29/lawsuit-seeks-more-than-5m-from-apple-for-allegedly-slowing-older-iphones-with-ios-9-upgrade |archive-date=December 13, 2016 }}</ref>{{Needs update|date=January 2023}}
=== Night Shift ===
Night Shift is a feature introduced in iOS 9.3. The feature shifts the colors of the device's display to be warmer, similar to [[F.lux]], a popular program for [[Microsoft Windows]] and [[OS X|Apple OS X]] computers.<ref>{{cite web|title=A better experience every day. And night.|url=http://www.apple.com/ios/updates/|website=Apple|accessdate=April 17, 2016}}</ref> When enabled, it uses the device's clock and geographic location to determine when to turn the feature on or off. Optionally, the user can set a manual schedule, or not have a schedule at all. For ease of access, there is a new Night Shift toggle that has been added to the Control Center. The settings for Night Shift are located under "Display and Brightness" in the Settings app, and on top of enabling the feature and setting a schedule, the user can also set the warmth of the display.<ref>{{Cite web|url=http://www.macrumors.com/how-to/use-ios-9-3-night-shift-mode/|title=How to Use Night Shift Mode in iOS 9.3|website=www.macrumors.com|access-date=2016-03-19}}</ref> Night Shift is automatically turned off when Low Power Mode is enabled, although users have been able to find workarounds for enabling both at the same time.<ref>{{cite web|last1=Benjamin|first1=Jeff|title=How-To: Use Night Shift and Low Power Mode at the same time on iOS 9.3 [Video]|url=http://9to5mac.com/2016/03/22/how-to-use-night-shift-low-power-mode-at-the-same-time-ios-9-3/|website=9to5Mac|accessdate=April 17, 2016|date=March 22, 2016}}</ref><ref>{{cite web|last1=Benjamin|first1=Jeff|title=How-To: Enable Night Shift and Low Power Mode at the same time on iOS 9.3.1|url=http://9to5mac.com/2016/04/09/how-to-night-shift-low-power-mode-enabled-siri-workaround/|website=9to5Mac|accessdate=April 17, 2016|date=April 9, 2016}}</ref> Only the [[iPhone 5s]] and later, the [[iPad mini 2]] and later, the [[iPad Air]] and later, the [[iPod Touch (6th generation)|sixth-generation iPod Touch]], and the [[iPad Pro]] can be used with Night Shift. The [[iPhone 4s]], [[iPhone 5]], [[iPad 2]] to [[iPad (4th generation)]], and [[iPod Touch (5th generation)]] do not receive the Night Shift Feature as it requires the 64-bit processors found in the [[Apple A7]] to [[Apple A9]] chips.


On September 21, 2015, Apple announced that iOS 9 had been installed on more than 50% of "active" iOS devices, as measured by the [[App Store (iOS)|App Store]]. According to Apple, this was "the fastest adoption rate ever for a new operating system".<ref>{{cite web |first=Andrew |last=Cunningham |title=Apple: iOS 9 on more than half of all devices, fastest adoption rate ever |url=https://arstechnica.com/apple/2015/09/apple-ios-9-on-more-than-half-of-all-devices-fastest-adoption-rate-ever/ |website=[[Ars Technica]] |publisher=[[Condé Nast]] |date=September 21, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20170107035326/http://arstechnica.com/apple/2015/09/apple-ios-9-on-more-than-half-of-all-devices-fastest-adoption-rate-ever/ |archive-date=January 7, 2017 }}</ref><ref>{{cite web |first=Lance |last=Whitney |title=Apple: Latest iPhone, iPad software surpasses 50 percent adoption |url=https://www.cnet.com/news/apple-touts-ios-9-adoption-rate-of-more-than-50/ |website=[[CNET]] |publisher=[[CBS Interactive]] |date=September 21, 2015 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221093346/https://www.cnet.com/news/apple-touts-ios-9-adoption-rate-of-more-than-50/ |archive-date=December 21, 2016 }}</ref>
===Other Improvements===


====Battery====
== Problems ==
=== Error 53 bricking issue ===
iOS 9 comes with Low Power Mode, which is said to increase battery life by up to three hours. In addition, Apple has added face-down detection on the iPhone 5S or newer. The operating system will know when your device is face down, and will not light up the screen when you get notifications to preserve battery life. Overall, Apple claims that iOS 9 will give consumers an extra hour of battery life just by updating.<ref>{{Cite web|url=http://www.apple.com/ios/whats-new/|title=iOS 9 - What’s New - Apple|website=Apple|access-date=2016-03-19}}</ref>
In February 2016, news outlets reported that users who updated to iOS 9 on a particular device that had components repaired by a third-party (notably the [[Touch ID]] fingerprint recognition sensor) rendered their phone [[brick (electronics)|unusable]]. The issue, named "Error 53",<ref>{{cite web |first=Jay |last=McGregor |title=iPhone 6 Killing 'Error 53' Highlights Big iOS 9 Problem |url=https://www.forbes.com/sites/jaymcgregor/2016/02/05/iphone-6-killing-error-53-highlights-big-ios-9-problem |website=[[Forbes]] |date=February 5, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161222085520/http://www.forbes.com/sites/jaymcgregor/2016/02/05/iphone-6-killing-error-53-highlights-big-ios-9-problem/ |archive-date=December 22, 2016 }}</ref><ref>{{cite web |first=Miles |last=Brignall |title='Error 53' fury mounts as Apple software update threatens to kill your iPhone 6 |url=https://www.theguardian.com/money/2016/feb/05/error-53-apple-iphone-software-update-handset-worthless-third-party-repair |website=[[The Guardian]] |date=February 5, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161222040915/https://www.theguardian.com/money/2016/feb/05/error-53-apple-iphone-software-update-handset-worthless-third-party-repair |archive-date=December 22, 2016 }}</ref> was, according to [[iFixIt]], limited to [[iPhone 6|iPhone 6 and 6 Plus]] devices.<ref>{{cite web |first=Kyle |last=Wiens |title=What's Up With Error 53? |url=http://ifixit.org/blog/7889/whats-up-with-error-53/ |website=[[iFixIt]] |date=February 5, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161122143259/http://ifixit.org/blog/7889/whats-up-with-error-53/ |archive-date=November 22, 2016 }}</ref> Apple stated:<ref>{{cite web |first=Chris |last=Velazco |title=Apple says the iPhone-breaking Error 53 is a security measure |url=https://www.engadget.com/2016/02/05/apple-iphone-error-53/ |website=[[Engadget]] |publisher=[[AOL]] |date=February 5, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161022180457/https://www.engadget.com/2016/02/05/apple-iphone-error-53/ |archive-date=October 22, 2016 }}</ref>


<blockquote>
==== Performance ====
We protect fingerprint data using a secure enclave, which is uniquely paired to the Touch ID sensor. When iPhone is serviced by an authorised Apple service provider or Apple retail store for changes that affect the Touch ID sensor, the pairing is re-validated. ... This check ensures the device and the iOS features related to Touch ID remain secure. Without this unique pairing, a malicious Touch ID sensor could be substituted, thereby gaining access to the secure enclave. When iOS detects that the pairing fails, Touch ID, including Apple Pay, is disabled so the device remains secure.
iOS 9 includes under-the-hood improvements thanks to the use of the [[Metal (API)|Metal API]] throughout the operating system.<ref>{{Cite web|url=http://www.ibtimes.co.uk/9-reasons-why-ios-9-will-make-your-old-iphone-feel-like-new-1519281|title=9 reasons why iOS 9 will make your old iPhone feel like new|website=International Business Times UK|access-date=2016-03-19}}</ref> Previously, Metal was only used within gaming applications.<ref>{{Cite web|url=http://www.trustedreviews.com/opinions/ios-8-metal-explained-how-does-it-affect-your-iphone-or-ipad|title=iOS 8 Metal Explained: How does it affect your iPhone or iPad?|website=TrustedReviews|access-date=2016-03-19}}</ref>
</blockquote>


Apple released a new version of iOS 9.2.1 later in February to fix the issue.<ref name="9.2.1 error 53 fixed">{{cite web |first=Matthew |last=Panzarino |title=Apple Apologizes And Updates iOS To Restore iPhones Disabled By Error 53 |url=https://techcrunch.com/2016/02/18/apple-apologizes-and-updates-ios-to-restore-iphones-disabled-by-error-53/ |website=[[TechCrunch]] |publisher=[[AOL]] |date=February 28, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161223144111/https://techcrunch.com/2016/02/18/apple-apologizes-and-updates-ios-to-restore-iphones-disabled-by-error-53/ |archive-date=December 23, 2016 }}</ref>
==== Security ====
iOS 9 introduces improved security using advanced encryption. iOS 9 also introduces a new [[two-factor authentication]] system for better security within [[iCloud Drive]].<ref>{{cite web|last1=Munson|first1=Lee|title=iOS 9 enhances two factor authentication, introduces 6-digit passcodes|url=https://nakedsecurity.sophos.com/2015/06/10/ios-9-enhances-two-factor-authentication-introduces-6-digit-passcodes/|website=naked security|accessdate=June 10, 2015|date=June 10, 2015}}</ref><ref>{{cite web|url=http://www.cnet.com/news/why-youll-want-to-install-that-new-iphone-operating-system-asap-protection-from-hackers/|title=Why you'll want to install that new iPhone operating system ASAP: Protection from hackers|work=[[CNET]]|publisher=[[CBS Interactive]]}}</ref> iOS 9 fixes a security issue within previous iOS versions where a hacker could bypass Apple's certificate security protocols allowing the "attacker to issue a malware payload via a directory traversal attack" which allows the hacker to "remotely alter configuration files to ensure the exploit still works even if an incoming [[AirDrop]] file is rejected by a user".<ref>{{cite web|url=http://www.cnet.com/news/apple-airdrop-flaw-leaves-users-vulnerable-to-exploit/|title=Apple iOS 9 fixes serious AirDrop vulnerability|work=[[CNET]]|publisher=[[CBS Interactive]]}}</ref><ref>{{Cite web|title = Apple AirDrop flaw leaves users vulnerable to exploit {{!}} ZDNet|url = http://www.zdnet.com/article/apple-airdrop-flaw-leaves-users-vulnerable-to-exploit/|website = ZDNet|accessdate = September 24, 2015}}</ref> In addition, 6-digit passcodes are now the ''default'' for [[Touch ID]]-enabled devices (increased from 4).<ref>{{cite web|last1=Lee|first1=Tyler|title=iOS 9 Introduces New Security Improvements|url=http://www.ubergizmo.com/2015/06/ios-9-new-security/|website=ubergizmo|accessdate=June 10, 2015}}</ref><ref>{{Cite web|title = Apple just relieved a big security headache for work iPhones {{!}} ZDNet|url = http://www.zdnet.com/article/apple-ibm-passcode-security-six-digits-event-september-9/|website = ZDNet|accessdate = September 23, 2015}}</ref> Devices ''without'' Touch ID will also be able to use 6-digit passcodes, and devices ''with'' Touch ID will still be able to use 4-digit passcodes (although they won't be the default option).


==== Safari ====
=== Date reboot issue ===
In February 2016, a bug was discovered that could render 64-bit devices unusable. The bug, caused by setting the date to January 1, 1970, would cause the device to get stuck in a reboot process until the battery died or the time setting shifted past January 1. A similar bug also applies to 32-bit devices, where the battery would report 0% of charge, and the Wi-Fi would be disabled.<ref>{{cite web |first=Samuel |last=Gibbs |title=Setting the date to 1 January 1970 will brick your iPhone, iPad or iPod touch |url=https://www.theguardian.com/technology/2016/feb/12/setting-the-date-to-1-january-1970-will-brick-your-iphone-ipad-or-ipod-touch |website=[[The Guardian]] |date=February 12, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221152315/https://www.theguardian.com/technology/2016/feb/12/setting-the-date-to-1-january-1970-will-brick-your-iphone-ipad-or-ipod-touch |archive-date=December 21, 2016 }}</ref> iOS 9.3, released on March 21, 2016, fixed the issue.<ref name="1970 Bug Fix and new Notes app"/>
{{Main|Safari (web browser)}}


=== 9.7-inch iPad Pro bricking issue ===
With the release of iOS 9, the [[Safari (web browser)|Safari]] web browser allows for third-party integration; {{as of|2015|09|lc=y}}, the most popular third-party Safari extensions are [[Ad blocking|ad- and content-blocking]] applications.<ref>{{cite web|url=http://www.cnet.com/news/ad-blockers-top-apple-charts-as-ios-9-debuts/|title=Ad blockers top Apple charts as iOS 9 debuts|work=[[CNET]]|publisher=[[CBS Interactive]]}}</ref><ref>{{cite web|first=Matthew|last=Miller|url=http://www.zdnet.com/article/ad-blockers-help-some-and-hurt-others-top-apple-ios-app-pulled-for-being-too-blunt/|title=Ad blockers help some and hurt others: Top Apple iOS app pulled for being too blunt|work=[[ZDNet]]}}</ref>
In May 2016, Apple released iOS 9.3.2. The update was followed by reports that it [[brick (electronics)|bricked]] some 9.7-inch [[iPad Pro]]s, with a "Connect to iTunes" message, and an "Error 56" message in iTunes that it couldn't restore the tablet.<ref name="9.7-inch iPad Pro bricked">{{cite web |first=Juli |last=Clover |title=iOS 9.3.2 Bricking Some 9.7-inch iPad Pro Devices With 'Error 56' Message [Updated] |url=http://www.macrumors.com/2016/05/16/ios-9-3-2-bricking-some-9-7-ipad-pros/ |website=[[MacRumors]] |date=May 16, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221090713/http://www.macrumors.com/2016/05/16/ios-9-3-2-bricking-some-9-7-ipad-pros/ |archive-date=December 21, 2016 }}</ref><ref>{{cite web |first=Andrew |last=Cunningham |title=After bricking saga, Apple re-posts iOS 9.3.2 update for 9.7-inch iPad Pro [Updated] |url=https://arstechnica.com/apple/2016/06/apple-pulls-ios-9-3-2-update-for-9-7-inch-ipad-pro-after-reports-of-bricking/ |website=[[Ars Technica]] |publisher=[[Condé Nast]] |date=June 2, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221000357/http://arstechnica.com/apple/2016/06/apple-pulls-ios-9-3-2-update-for-9-7-inch-ipad-pro-after-reports-of-bricking/ |archive-date=December 21, 2016 }}</ref>


Apple temporarily stopped offering the 9.3.2 update, until a re-release of the version in June 2016 fixed the issue.<ref name="Bricking issue fixed">{{cite web |first=Juli |last=Clover |title=Apple Releases Updated Version of iOS 9.3.2 for 9.7-Inch iPad Pro |url=http://www.macrumors.com/2016/06/02/apple-releases-ios-9-3-2-for-9-7-ipad-pro/ |website=[[MacRumors]] |date=June 2, 2016 |access-date=December 20, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161120001734/http://www.macrumors.com/2016/06/02/apple-releases-ios-9-3-2-for-9-7-ipad-pro/ |archive-date=November 20, 2016 }}</ref>
==== iBooks ====
As of iOS 9.3, PDFs saved to the iBooks application via [[Safari (web browser)|Safari]] or [[iTunes]] can be synced with iCloud.<ref>{{Cite web|url=http://9to5mac.com/2016/01/11/ios-9-3-gallery-night-shift-new-3d-touch-features-notes-touch-id-more/|title=iOS 9.3 Gallery & Feature List: Night Shift, New 3D Touch features, updated Health app, Notes Touch ID, more|last=Gurman|first=Mark|website=9to5Mac|access-date=2016-03-19}}</ref>


==== iCloud ====
=== iBooks crash ===
The release of iOS 9.3.3 in July 2016 was followed by reports that the [[Apple Books|iBooks]] store crashed.<ref>{{cite web |first=Gordon |last=Kelly |title=Apple iOS 9.3.3 Has A Nasty Surprise |url=https://www.forbes.com/sites/gordonkelly/2016/07/22/apple-ios-9-3-3-ibooks-ipads/ |website=[[Forbes]] |date=July 22, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161222121510/http://www.forbes.com/sites/gordonkelly/2016/07/22/apple-ios-9-3-3-ibooks-ipads/ |archive-date=December 22, 2016 }}</ref> However, Apple explained in August that the timing was a coincidence, and the iBooks app crash was a result of a server issue, not the software update.<ref>{{cite web |first=Gordon |last=Kelly |title=Apple Confirms Problem Around iOS 9.3.3 |url=https://www.forbes.com/sites/gordonkelly/2016/08/01/apple-ios-9-3-3-server-problems/ |website=[[Forbes]] |date=August 1, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161107175202/http://www.forbes.com/sites/gordonkelly/2016/08/01/apple-ios-9-3-3-server-problems/ |archive-date=November 7, 2016 }}</ref>
iOS 9 includes a new [[iCloud#iCloud Drive|iCloud Drive]] app, which can be enabled from the iCloud settings.<ref>{{cite web|last=Nield |first=David |url=http://fieldguide.gizmodo.com/23-things-you-can-do-in-ios-9-that-you-couldnt-do-in-io-1731300214 |title=23 Things You Can Do in iOS 9 That You Couldn't Do in iOS 8 |publisher=Gizmodo |date=September 17, 2015 |accessdate=September 21, 2015}}</ref>


=== Spyware attack ===
==Problems==
{{Main|Pegasus (spyware)}}
On February 5, 2016, news outlets reported that users who updated to iOS 9 on a particular device that had been repaired by a third-party repair outlets using non-Apple-manufactured components (notably the [[Touch ID]] component) rendered their phone completely unusable (or "[[brick (electronics)|bricked]]"), resulting in an error being shown.<ref name="error53-guardian">{{cite web|url=http://www.theguardian.com/money/2016/feb/05/error-53-apple-iphone-software-update-handset-worthless-third-party-repair|title='Error 53' fury mounts as Apple software update threatens to kill your iPhone 6|author=Miles Brignall|date=February 5, 2016|accessdate=February 8, 2016|publisher=[[The Guardian]]}}</ref><ref>{{cite web|url=http://www.forbes.com/sites/jaymcgregor/2016/02/05/iphone-6-killing-error-53-highlights-big-ios-9-problem/|title=iPhone 6 Killing 'Error 53' Highlights Big iOS 9 Problem|author=Jay McGregor|date=February 5, 2016|publisher=[[Forbes]]}}</ref><ref>{{cite web|url=http://ifixit.org/blog/7889/whats-up-with-error-53/|title=What's Up With Error 53?|author=Kyle Wiens|date=February 5, 2016|website=ifixit.org}}</ref> After installing the update, the device would prevent users from accessing any of their content with no option to reverse the software update, return the phone to its original condition or to otherwise rescue its data.<ref>{{cite web|url=http://www.engadget.com/2016/02/05/apple-iphone-error-53/|title=Apple says the iPhone-breaking Error 53 is a security measure|author=Chris Velasco|publisher=[[Engadget]]|date=February 5, 2016|accessdate=February 8, 2016}}</ref> Apple claimed that error shown due to this was to protect customers' data stored on the device that could possibly be compromised by malicious components after unauthorised repairs.<ref name="error53-guardian"/>
The release of iOS 9.3.5 in August 2016 fixed three critical security vulnerabilities. The vulnerabilities could be exploited to silently enable a [[iOS jailbreaking|jailbreak]] and allow the malicious installation of [[Pegasus (spyware)|a spyware called "Pegasus"]]. Pegasus could intercept and read text messages, emails, track calls, trace phone location, activate the microphone, and gather information from apps, including (but not limited to) [[iMessage]], [[Gmail]], [[Viber]], [[Facebook]], [[WhatsApp]], [[Telegram (software)|Telegram]], and [[Skype]].<ref>{{cite web |first=Thomas |last=Fox-Brewster |title=Everything We Know About NSO Group: The Professional Spies Who Hacked iPhones With A Single Text |url=https://www.forbes.com/sites/thomasbrewster/2016/08/25/everything-we-know-about-nso-group-the-professional-spies-who-hacked-iphones-with-a-single-text/ |website=[[Forbes]] |date=August 25, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20170110135726/http://www.forbes.com/sites/thomasbrewster/2016/08/25/everything-we-know-about-nso-group-the-professional-spies-who-hacked-iphones-with-a-single-text/ |archive-date=January 10, 2017 }}</ref>


The discovery of the vulnerabilities dated 10 days before the 9.3.5 update was released. [[United Arab Emirates|Arab]] human rights defender Ahmed Mansoor received a suspicious text message with a link and sent it to [[Citizen Lab]]. An investigation ensued with collaboration from [[Lookout (IT security)|Lookout]] that revealed that if Mansoor clicked the link, it would have jailbroken his phone and implanted it with the spyware. Citizen Lab linked the attack to an Israeli surveillance company known as [[NSO Group]] that sells Pegasus to governments for "lawful interception."<ref>{{cite journal |first1=Bill |last1=Marczak |first2=John |last2=Scott-Railton |title=The Million Dollar Dissident: NSO Group's iPhone Zero-Days used against a UAE Human Rights Defender |url=https://citizenlab.org/2016/08/million-dollar-dissident-iphone-zero-day-nso-group-uae/ |website=[[Citizen Lab]] |date=August 24, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161217014412/https://citizenlab.org/2016/08/million-dollar-dissident-iphone-zero-day-nso-group-uae/ |archive-date=December 17, 2016 }}</ref><ref>{{Cite web|url=https://www.vice.com/en_us/article/3da5qj/government-hackers-iphone-hacking-jailbreak-nso-group|title=Government Hackers Caught Using Unprecedented iPhone Spy Tool|last=Franceschi-Bicchierai|first=Lorenzo|date=August 25, 2016|website=Vice|language=en-US|access-date=June 4, 2019|archive-date=September 3, 2020|archive-url=https://web.archive.org/web/20200903100656/https://www.vice.com/en_us/article/3da5qj/government-hackers-iphone-hacking-jailbreak-nso-group|url-status=live}}</ref>
A newly discovered date bug could permanently disable 64-bit processor devices. This bug was done by manually setting the date to January 1, 1970, subsequently rebooting the device.<ref>{{cite news|url=http://www.theguardian.com/technology/2016/feb/12/setting-the-date-to-1-january-1970-will-brick-your-iphone-ipad-or-ipod-touch|title=Setting the date to 1 January 1970 will brick your iPhone, iPad or iPod touch|author=Samuel Gibbs|date=February 12, 2016|newspaper=[[The Guardian]]}}</ref>


Regarding how widespread the issue was, Lookout explained in a blog post: "We believe that this spyware has been in the wild for a significant amount of time based on some of the indicators within the code" and pointed out that the code shows signs of a "kernel mapping table that has values all the way back to [[iOS 7]]."<ref>{{cite web |title=Sophisticated, persistent mobile attack against high-value targets on iOS |url=https://blog.lookout.com/blog/2016/08/25/trident-pegasus/ |website=Lookout |date=August 25, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161217041121/https://blog.lookout.com/blog/2016/08/25/trident-pegasus/ |archive-date=December 17, 2016 }}</ref>
On March 24, 2016, Apple temporarily stopped offering the iOS 9.3 update for older devices like the [[iPad Air]] and [[iPhone 5S]] earlier due to installation issues some users have experienced. On older devices, iOS 9.3 requires users to input the Apple ID and password originally used to set up the device, which can lead to the device becoming stuck at the Activation Lock screen if the original account information can't be recalled. On March 28, 2016, Apple released a new patched build of iOS 9.3 for older devices impacted by the issue.<ref>{{cite news|url=http://osxdaily.com/2016/03/28/ios-9-3-build-13e237-fix-activation-error-ipsw|title=Fix iOS 9.3 Activation Errors with New 13E237 Build for Older iPhone, iPad, iPod touch|newspaper=OSXDaily|date=March 28, 2016}}</ref>


News of the spyware received significant media attention,<ref>{{cite web |first=Nicole |last=Perlroth |title=IPhone Users Urged to Update Software After Security Flaws Are Found |url=https://www.nytimes.com/2016/08/26/technology/apple-software-vulnerability-ios-patch.html |website=[[The New York Times]] |date=August 25, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161220110442/http://www.nytimes.com/2016/08/26/technology/apple-software-vulnerability-ios-patch.html |archive-date=December 20, 2016 }}</ref><ref>{{cite web |first=Paul |last=Szoldra |title=Inside 'Pegasus,' the impossible-to-detect software that hacks your iPhone |url=http://www.businessinsider.com/pegasus-nso-group-iphone-2016-8 |website=[[Business Insider]] |publisher=[[Axel Springer SE]] |date=August 26, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221162145/http://www.businessinsider.com/pegasus-nso-group-iphone-2016-8 |archive-date=December 21, 2016 }}</ref><ref>{{cite web |first=Janko |last=Roettgers |title=This App Can Tell if an iPhone Was Hacked With Latest Pegasus Spy Malware |url=https://variety.com/2016/digital/news/iphone-hack-pegasus-malware-security-ios-update-1201845700/ |website=[[Variety (magazine)|Variety]] |publisher=[[Penske Media Corporation]] |date=August 26, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221162858/http://variety.com/2016/digital/news/iphone-hack-pegasus-malware-security-ios-update-1201845700/ |archive-date=December 21, 2016 }}</ref><ref>{{cite web |first=Lily Hay |last=Newman |title=A Hacking Group Is Selling iPhone Spyware to Governments |url=https://www.wired.com/2016/08/hacking-group-selling-ios-vulnerabilities-state-actors/ |website=[[Wired (website)|Wired]] |publisher=[[Condé Nast]] |date=August 25, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221163133/https://www.wired.com/2016/08/hacking-group-selling-ios-vulnerabilities-state-actors/ |archive-date=December 21, 2016 }}</ref><ref>{{cite web |first1=Jon |last1=Swartz |first2=Elizabeth |last2=Weise |title=Apple issues security update to prevent iPhone spyware |url=https://www.usatoday.com/story/tech/2016/08/25/apple-issues-security-update-prevent-iphone-spyware/89347242/ |website=[[USA Today]] |publisher=[[Gannett Company]] |date=August 26, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20160830100432/http://www.usatoday.com/story/tech/2016/08/25/apple-issues-security-update-prevent-iphone-spyware/89347242/ |archive-date=August 30, 2016 }}</ref> particularly for being called the "most sophisticated" smartphone attack ever,<ref>{{cite web |first=Thomas |last=Tamblyn |title=What Is The "Pegasus" iPhone Spyware And Why Was It So Dangerous? |url=http://www.huffingtonpost.co.uk/entry/what-is-the-pegasus-iphone-spyware-and-why-was-it-so-dangerous_uk_57c0043fe4b0ba22a4d3f930 |website=[[The Huffington Post]] |publisher=[[AOL]] |date=August 26, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221232824/http://www.huffingtonpost.co.uk/entry/what-is-the-pegasus-iphone-spyware-and-why-was-it-so-dangerous_uk_57c0043fe4b0ba22a4d3f930 |archive-date=December 21, 2016 }}</ref><ref>{{cite web |first=Sami |last=Khan |title=Meet Pegasus, the most-sophisticated spyware that hacks iPhones: How serious was it? |url=http://www.ibtimes.co.in/meet-pegasus-most-sophisticated-spyware-that-hacks-iphones-how-serious-was-it-691467 |website=[[International Business Times]] |publisher=[[IBT Media]] |date=August 27, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161221162549/http://www.ibtimes.co.in/meet-pegasus-most-sophisticated-spyware-that-hacks-iphones-how-serious-was-it-691467 |archive-date=December 21, 2016 }}</ref> and for being the first time in iPhone history that a remote jailbreak exploit has been detected.<ref>{{cite web |first=Russell |last=Brandom |title=A serious attack on the iPhone was just seen in use for the first time |url=https://www.theverge.com/2016/8/25/12646656/iphone-vulnerability-ios-patch-remote-jailbreak |website=[[The Verge]] |publisher=[[Vox Media]] |date=August 25, 2016 |access-date=December 21, 2016 |url-status=live |archive-url=https://web.archive.org/web/20161116145320/http://www.theverge.com/2016/8/25/12646656/iphone-vulnerability-ios-patch-remote-jailbreak |archive-date=November 16, 2016 }}</ref>
On March 28, 2016, [[iPhone]] and [[iPad]] users have reported that an apparent iOS bug that causes [[Safari]], Mail, Messages, Notes, Chrome, and select other preinstalled and third-party apps to crash or freeze after tapping or long-pressing on web links. Users first starting experiencing this issue after the release of iOS 9.3 last week but some users also claim to be affected on iOS 9.2.1 and earlier iOS versions. Apple released iOS 9.3.1 on March 31, 2016, with a fix for users affected by this issue on their iOS devices.


=== "Broadpwn" Wi-Fi vulnerability ===
==Reception==
In July 2017, information on a critical [[Wi-Fi]] security vulnerability affecting 1 billion iOS and [[Android (operating system)|Android]] devices was published. The issue, named "Broadpwn", allows an attacker to remotely take control of nearby vulnerable devices and turn affected devices into "rogue access points", further spreading the infection to other nearby devices.<ref>{{cite web |first=Andy |last=Greenberg |title=How a bug in an obscure chip exposed a billion smartphones to hackers |url=https://www.wired.com/story/broadpwn-wi-fi-vulnerability-ios-android/ |website=[[Wired (website)|Wired]] |publisher=[[Condé Nast]] |date=July 27, 2017 |access-date=October 12, 2017 |url-status=live |archive-url=https://web.archive.org/web/20170918234540/https://www.wired.com/story/broadpwn-wi-fi-vulnerability-ios-android |archive-date=September 18, 2017 }}</ref> Apple released a [[security patch]] for the issue as part of its [[iOS 10|iOS 10.3.3]] update,<ref>{{cite web |first=Roger |last=Fingas |title=Apple's iOS 10.3.3 update protects against 'Broadpwn' Wi-Fi exploit |url=http://appleinsider.com/articles/17/07/20/apples-ios-1033-update-protects-against-broadpwn-wi-fi-exploit |website=AppleInsider |date=July 20, 2017 |access-date=October 12, 2017 |url-status=live |archive-url=https://web.archive.org/web/20171013013705/http://appleinsider.com/articles/17/07/20/apples-ios-1033-update-protects-against-broadpwn-wi-fi-exploit |archive-date=October 13, 2017 }}</ref> though older devices running iOS 9, including the [[iPad 2]], [[iPad (3rd generation)|3rd generation iPad]], [[iPhone 4s]], the [[iPad Mini (1st generation)|first-generation iPad Mini]], and the [[IPod Touch (5th generation)|5th generation iPod Touch]] were left without an available update, causing concerns over the safety of the iPad 2, the 3rd generation iPad, and the first-generation iPad Mini in schools.<ref>{{cite web |first=Andrew |last=Walters |title=Thousands of iPad 2 tablets in schools just became ticking timebombs |url=https://www.sirius.co.nz/thousands-of-ipad-2-tablets-are-ticking-timebombs/ |publisher=Sirius Information Services [New Zealand] |date=August 1, 2017 |url-status=dead |archive-url=https://web.archive.org/web/20190119182158/https://www.sirius.co.nz/thousands-of-ipad-2-tablets-are-ticking-timebombs/ |archive-date=January 19, 2019}}</ref>
The reception of iOS 9 has been generally positive with critics praising all the under-the-hood improvements Apple made as welcome changes especially since iOS 9's predecessor, iOS 8, was known for having bugs and being unstable at times.<ref>{{cite web|url=http://ipadinsight.com/ios-9/ios-9-gets-a-big-boost-from-under-the-hood-refinements/|title=iOS 9 gets a big boost from under the hood refinements|work=iPad Insight}}</ref> Reviewers have also praised iOS 9 for including many improvements in user experience such as the new Intelligence improvements. However, many journalists noted that Apple picked up many of the ideas for iOS 9 from other platforms. The Intelligence improvements were seen as borrowed from Google, who introduced the idea of [[Google Now]] and Now On Tap which perform many of the same functions as Proactive in iOS 9. Improvements to the iPad experience such as split-screen multitasking were seen in other tablets such as the [[Microsoft Surface]] or the [[Samsung Galaxy Tab series|Samsung Galaxy line of tablets]].<ref>{{cite web|url=https://www.yahoo.com/tech/7-new-features-apple-just-stole-from-microsoft-121056288064.html|title=7 'New' Features Apple Just Stole From Microsoft, Google, and Itself|date=June 9, 2015|work=yahoo.com}}</ref> Keyboard improvements such as scrolling with a two-finger gesture and upper/lower case keyboard were noted by critics as having been taken from jailbreak tweaks as well (SwipeSelection<ref>{{cite web|url=http://www.iphonehacks.com/2012/05/swipeselection-to-make-ipad-text-editing-concept-a-reality.html|title=SwipeSelection: Jailbreak Tweak to Make iPad Text Editing Concept a Reality|work=iPhone Hacks - #1 iPhone, iPad, iOS Blog}}</ref> and ShowCase,<ref>{{cite web|url=http://www.ziphone.org/2011/02/new-cydia-tweak-showcase-tweak-for-ios.html|title=New Cydia Tweak: ShowCase Tweak for iOS Keyboard Makes Typing A Lot Easier - Unlock iPhone 4, unlock iPhone 3GS, jailbreak iPhone - how to with ziPhone.org|work=ziphone.org}}</ref> respectively).


===iPhone 4s lawsuit===
There has been criticism, however, of the operating system's new way of handling apps, called "App Thinning", in which apps downloaded on a specific device will only download files that are required to run on that device and not contain any files required to run on other iOS devices. While this is beneficial for individuals who may have devices with lower storage capacity, the apps downloaded do not transfer back to iTunes when connected, as they have previously. This may mean that a user has to download the same app multiple times for each of their devices - a problem especially for those with limited data allowances from their internet service providers.<ref>{{cite web|url=http://www.mcelhearn.com/itunes-12-3-not-copying-purchased-content-from-ios-devices|title=iTunes 12.3 Not Copying Purchased Content from iOS Devices}}</ref><ref>{{cite web|url=https://discussions.apple.com/thread/7261341|title=iTunes won't transfer purchases from iPhone/iPad|work=apple.com}}</ref>
{{see also|Batterygate}}
On December 22, 2015, Apple faced a class-action lawsuit for crippling the iPhone 4s with the iOS 9 update, with some people even going so far as to say that iOS 9 rendered their devices unusable.<ref>{{Cite web|url=https://www.techtimes.com/articles/120915/20160103/apple-facing-lawsuit-for-allegedly-forcing-people-to-buy-newer-models-by-slowing-down-iphone-4s-with-ios-9.htm|title=Apple Facing Lawsuit For Allegedly Forcing People To Buy Newer Models By Slowing Down iPhone 4s with iOS 9|website=TechTimes|access-date=April 14, 2020|archive-date=November 8, 2020|archive-url=https://web.archive.org/web/20201108114627/http://www.techtimes.com/articles/120915/20160103/apple-facing-lawsuit-for-allegedly-forcing-people-to-buy-newer-models-by-slowing-down-iphone-4s-with-ios-9.htm|url-status=live}}</ref><ref>{{Cite web|url=https://www.cultofmac.com/404282/5-million-lawsuit-asks-did-ios-9-cripple-iphone-4s-devices/|title=$5 million lawsuit asks: Did iOS 9 cripple iPhone 4s devices?|website=Cult Of Mac|date=December 30, 2015 |access-date=April 14, 2020|archive-date=November 8, 2020|archive-url=https://web.archive.org/web/20201108142001/https://www.cultofmac.com/404282/5-million-lawsuit-asks-did-ios-9-cripple-iphone-4s-devices/|url-status=live}}</ref> The 4s only had 512MB of [[Random-access memory|RAM]],<ref>{{Cite web|url=https://www.gsmarena.com/apple_iphone_4s-4212.php|title=Apple iPhone 4S|date=April 14, 2020|website=GSMArena|access-date=April 14, 2020|archive-date=March 29, 2020|archive-url=https://web.archive.org/web/20200329215441/https://www.gsmarena.com/apple_iphone_4s-4212.php|url-status=live}}</ref> so it could not handle the iOS 9 update. A settlement was reached in 2022, such that users who downloaded iOS 9 onto an iPhone 4s, while living in New York or New Jersey, could receive $15 each, from a fund of $20,000,000 paid by Apple.<ref name="Macworld-20220505">{{cite web |url=https://www.macworld.com/article/698021/iphone-4s-ios-9-class-actions-lawsuit-settlement.html |date=2022-05-05 |accessdate=2023-12-16 |title=If you downloaded iOS 9 on an iPhone 4s, you may be entitled to a refund check |author=Michael Simon |work=Macworld }}</ref><ref>{{cite web |author=Lonnie Brown |work=The Ledger |title=Gadget Daddy: Apple offers $20M in 7-year-old iPhone 4S lawsuit. But is the end really near? |url=https://www.theledger.com/story/business/columns/2022/06/03/gadget-daddy-end-really-near-7-year-old-iphone-4-s-lawsuit/7481109001/ |date=2022-06-03 |accessdate=2023-12-16 }}</ref><ref>{{cite web |url=https://www.docketalarm.com/cases/New_York_Eastern_District_Court/1--15-cv-07381/Lerman_v._Apple_Inc/173/ |title=Memorandum and Order, ''Lerman et al. v. Apple Inc.'', 15-CV-7381 (LB) |publisher=United States District Court, Eastern District of New York |date=2022-10-04 |accessdate=2023-12-16 }}</ref>


===Activation Error bricking issue===
Apple is facing a $5 million lawsuit over allegedly slowing the [[iPhone 4S]] with iOS 9.<ref>{{cite web|url=http://mashable.com/2015/12/31/iphone-4s-ios-9-lawsuit/|title=Apple faces $5 million lawsuit over allegedly slowing the iPhone 4S with iOS 9|author=Raymond Wong|date=December 31, 2015|work=Mashable}}</ref>
Around early 2018, some users who still had devices running iOS 9 with the [[Apple_A9|A9 chip]] reported being prompted by an "Activation Error" screen that occurred at any random time. Attempting to get out of this error screen would only send the user back to the said screen, unless they restored their device to the latest iOS version in iTunes (which also meant data loss was possible if the device had content in it, as restoring the device wipes everything from it). This bug still persists as of the present day for certain users currently running iOS 9 on their A9 devices, and its cause is currently unknown.<ref>{{Cite web|url=https://www.youtube.com/watch?v=UxaCUugPoRY|title=Older iPhones Bricked For Being Too Outdated - Locking Users From Their Data|access-date=January 9, 2023|website=YouTube|archive-date=January 10, 2023|archive-url=https://web.archive.org/web/20230110090423/https://www.youtube.com/watch?v=UxaCUugPoRY|url-status=live}}</ref> As of January 2023, Apple has made no public comment regarding the issue.


==Supported devices==
== Supported devices ==
All devices that support iOS 8 support iOS 9.
With this release, Apple did not drop support for any iOS devices, with all devices supporting iOS 8 also able to run iOS 9.<ref>[http://www.cnet.com/news/apple-devices-compatible-with-ios-9 "iOS 9 will run on all iOS 8-compatible devices - CNET"] June 8, 2015</ref> Supported devices on this release include the iPhone 4S onwards, iPod Touch (5th generation) onwards, the iPad 2 onwards, and the iPad Mini (1st generation) onwards, making iOS 9 have the most supported devices than any other iOS release, with 22 devices. The iPad 2 is also the first iOS device to support six major releases of iOS, supporting iOS 4 to 9. This is the greatest amount of major iOS releases a single iOS device has supported, surpassing the iPhone 4S which supports five major releases (iOS 5 to 9), and iPod Touch (5th generation) supporting four major releases (iOS 6 to 9). However, iOS 9 has limited support on the iPad 2, the iPhone 4S, the iPad Mini (1st generation), and the iPod Touch (5th generation).


{{col-begin|width=75%}}
Supported devices:
{{col-begin}}
{{col-break}}
{{col-break}}

;iPhone
*[[iPhone 4S]]
===iPhone===
*[[iPhone 4s]]
*[[iPhone 5]]
*[[iPhone 5]]
*[[iPhone 5C]]
*[[iPhone 5c]]
*[[iPhone 5S]]
*[[iPhone 5s]]
*[[iPhone 6]]
*[[iPhone 6|iPhone 6 & 6 Plus]]
*[[iPhone 6|iPhone 6 Plus]]
*[[iPhone 6s|iPhone 6s & 6s Plus]]
*[[iPhone 6S]]
*[[iPhone SE (1st generation)]]

*[[iPhone 6S|iPhone 6S Plus]]
*[[iPhone SE]]
{{col-break}}
{{col-break}}

;iPod Touch
===iPod Touch===
*[[iPod Touch (5th generation)]]
*[[iPod Touch (5th generation)]]
*[[iPod Touch (6th generation)]]
*[[iPod Touch (6th generation)]]

{{col-break}}
{{col-break}}

;iPad
===iPad===
*[[iPad (2nd generation)|iPad 2]]
*[[iPad 2]]
*[[iPad (3rd generation)]]
*[[iPad (3rd generation)]]
*[[iPad (4th generation)]]
*[[iPad (4th generation)]]
*[[iPad Air]]
*[[iPad Air]]
*[[iPad Air 2]]
*[[iPad Air 2]]
*[[iPad Pro]]
{{col-break}}
;iPad Mini
*[[iPad Mini (1st generation)]]
*[[iPad Mini (1st generation)]]
*[[iPad Mini 2]]
*[[iPad Mini 2]]
*[[iPad Mini 3]]
*[[iPad Mini 3]]
*[[iPad Mini 4]]
*[[iPad Mini 4]]
*[[iPad Pro (1st generation)|iPad Pro (12.9-inch 1st generation)]]
*[[iPad Pro (1st generation)|iPad Pro (9.7-inch)]]
{{col-break}}
{{col-break}}
{{col-end}}
{{col-end}}


== Version history ==
==References==
{| class="wikitable"
|+
!Version
!Build
!Codename
!Release date
!Notes
!Update type
|-
|9.0
|13A340{{efn|name=ipadmini4|[[iPad Mini 4|iPad mini 4]] only}}<br />13A342{{efn|name=iphone6s|[[iPhone 6S]] only}}<br />13A343{{efn|name=iphone6splus|[[iPhone 6S|iPhone 6S Plus]] only}}<br />13A344
| rowspan="4" |Monarch
|September 16, 2015
|Initial release on iPhone 6s, iPhone 6s Plus, and iPad mini 4
* Allows Siri to search personal photos and videos based on dates, locations, album names, etc.
* Ask Siri can now remind users about things they have viewed in apps
* Siri can now be asked for directions via public transit
* Phone calls, FaceTime calls, and Messages conversations can now be initiated from contacts searched in Spotlight Search
* iPad Only
** Adds Slide Over, allowing users to switch between apps without exiting the current app, for Apple apps and supported third-party apps
** Split View allows using two apps at once with Apple apps and supported third-party apps, with resizeable windows
** Picture-in-picture video support for Safari video, FaceTime, Videos, Podcasts, and supported third-party apps
* Adds support in Maps for public transit, station details, schedules, and directions
* Adds indicator for Apple Pay support on place cards
* Allows adding photos to Notes from Photo Library or Camera
* Can now draw notes with your finger
* Redesigns the News app
* Adds support for Discover cards with Apple Pay
* Apple Pay can be prepared by double-tapping Home and keeping one's finger on Home
* Increases battery life
* Software updates now take up less space, can be installed later after downloading
* Apple apps and the UI now use Metal to render, for better performance
* Using a six-digit passcode is now default instead of a four-digit passcode
* San Francisco is now the default system font
* Wi-Fi assist automatically uses cellular data if Wi-Fi connectivity is poor
* Content can be transferred from an Android device to an iOS device with the Move to iOS app
|Initial Release
|-
|rowspan="2"|9.0.1
|13A404
|September 23, 2015
|rowspan="2"|
* Fixes an issue where some users could not complete setup assistant after updating
* Fixes an issue where sometimes alarms and timers could fail to play
* Fixes an issue in Safari and Photos apps where pausing video could cause the paused frame to appear distorted
* Fixes an issue where some users with a custom APN setup via a profile would lose cellular data
| rowspan="2" |Bug Fixes
|-
|13A405{{efn|name=iphone6s6splus|[[iPhone 6S]] and iPhone 6S Plus only}}
|September 24, 2015
|-
|9.0.2
|13A452
|September 30, 2015
|
* Fixes an issue with the setting to turn on or off app cellular data usage
* Fixes an issue that prevented iMessage activation for some users
* Fixes an issue where an iCloud backup could be interrupted after starting a manual backup
* Fixes an issue where the screen could incorrectly rotate when receiving notifications
* Fixes an issue where a lock screen issue allowed access to photos and contacts on a locked device
* Improved the stability of Podcasts app
|Bug Fixes
|-
|rowspan="2"|9.1
|13B143
| rowspan="2" |Boulder
|October 21, 2015
|rowspan="2"|Initial release on iPad Pro 12.9" (1st generation)
* Live Photos now intelligently senses when the iPhone is raised or lowered, so that Live Photos will automatically not record these movements
* Over 150 new emoji characters with full support for Unicode 7.0 and 8.0 emojis
* Improved overall stability, including CarPlay, Music, Photos, Safari and Search
* Improved performance while in Multitasking UI
* Fixes an issue that could cause Calendar to become unresponsive in Month view
* Fixes an issue that prevented Game Center from launching some users
* Fixes an issue that zoomed the content of some apps
* Fixes an issue that could cause an incorrect unread mail count for POP mail accounts
* Fixes an issue that prevented users from removing recent contacts from new mail or messages
* Fixes an issue that caused some messages to not appear in Mail search results
* Fixes an issue that left a gray bar in the body of an audio message
* Fixes an issue that caused activation errors on some carriers
* Fixes an issue that prevented some apps from updating from the App Store
| rowspan="2" |Feature Update
|-
|13B144{{efn|name=ipadpro12and9inch|[[iPad Pro (1st generation)|iPad Pro 12.9-inch (1st generation)]] only}}
|November 17, 2015
|-
|9.2
|13C75
|Castlerock
|December 8, 2015
|
* Apple Music improvements
** Ability to create a new playlist when adding a song to a playlist
** Most recently changed playlist is now listed at the top when adding songs to playlist
** Ability to download albums or playlists from your iCloud Music Library by tapping the iCloud download button
** New download indicator next to each song in My Music and Playlists
** See works, composers, and performers while browsing Classical music in the Apple Music catalog
* iBooks now supports listening to an audiobook while browsing the library, reading other books, or exploring the iBooks Store
* iPhone support for USB Camera Adapter to import photos and videos
* Siri support for Arabic (Saudi Arabia, United Arab Emirates)
* Bug fixes
|Feature Update
|-
|rowspan="2"|9.2.1
|13D15
| rowspan="2" |Dillon
|January 19, 2016
|rowspan="2"|
* Fixes many bugs that allowed local users to execute arbitrary code with kernel privileges
* Fixes multiple bugs where visiting a malicious website led to arbitrary code execution
* Fixes a bug that allowed captive web portals to read and write user's cookies
| rowspan="2" |Bug Fixes
|-
|13D20{{efn|[[iPhone 6]], iPhone 6 Plus, [[iPhone 6S]], iPhone 6S Plus, [[iPad Air 2]], [[iPad Mini 3|iPad mini 3]], [[iPad Mini 4|iPad mini 4]] and [[iPad Pro (1st generation)|iPad Pro 12.9-inch (1st generation)]] only}}
|February 18, 2016
|-
|rowspan="3"|9.3
|13E233<br />13E234{{efn|[[iPhone 6S]], iPhone 6S Plus and [[iPad Pro (1st generation)|iPad Pro 9.7-inch]] only}}
| rowspan="4" |Eagle
|March 21, 2016
|Initial release on iPhone SE (1st generation)
* Adds support for a new feature named Night Shift which, manually or automatically (based on user preference), makes the display color warmer so it is easier to view at night. Users can adjust the color temperature in the Settings app
** Night Shift works only on 64-bit devices
* Adds support for protecting notes inside the Notes app with a passcode or Touch ID
* Support for pairing multiple Apple Watches to your iPhone
* Support for Spanish (Latin America) display language
* Siri support for Finnish, Hebrew and Malay
* Fixes an issue where manually changing the date to May 1970 or earlier<ref>{{cite web|url=https://support.apple.com/en-us/HT205248|title=If you changed the date to May 1970 or earlier and can't restart your iPhone, iPad, or iPod touch|website=Apple Support|date=February 15, 2016|archive-url=https://web.archive.org/web/20160304050538/https://support.apple.com/en-us/HT205248|archive-date=March 4, 2016|url-status=deviated}}</ref> could prevent 64-bit devices from turning on after a restart
|Feature Update
|-
|13E236{{efn|[[iPad 2]] (GSM) only}}
|March 25, 2016
|rowspan="2"|Builds 13E236 and 13E237 were issued to devices that were affected by the Activation Lock bug. These re-issued builds helped correct the issue after the prior builds were withdrawn
| rowspan="2" |Bug Fixes
|-
|13E237{{efn|[[iPhone 4s]], [[iPhone 5]], [[iPhone 5c]], [[iPhone 5s]], [[iPad 2]] (Wi-Fi), iPad 2 (CDMA), [[iPad (3rd generation)]], [[iPad (4th generation)]], [[iPad Mini (1st generation)|iPad mini (1st generation)]], [[iPad Mini 2|iPad mini 2]], [[iPad Air|iPad Air (1st generation)]] and [[iPod Touch (5th generation)|iPod touch (5th generation)]] only}}
|March 28, 2016
|-
|9.3.1
|13E238
|March 31, 2016
|
* Fixes an issue that caused apps to be unresponsive after tapping on links in Safari or other apps
* Fixes an issue where connecting to a fake Apple time server which sets system time to January 1, 1970, can cause 64-bit devices to overheat and become unresponsive after a restart
|Bug Fixes
|-
|rowspan="2"|9.3.2
|13F69
| rowspan="2" |Frisco
|May 16, 2016
|
* Fixes an issue where some Bluetooth accessories could experience audio quality issues when paired to iPhone SE
* Fixes an issue where looking up dictionary definitions could fail
* Fixes an issue that prevented typing email addresses when using the Japanese Kana keyboard in Mail and Messages
* Fixes an issue for VoiceOver users, using the Alex voice, where the device switches to a different voice to announce punctuation or spaces
| rowspan="2" |Bug Fixes
|-
|13F72{{efn|[[iPad Pro (1st generation)|iPad Pro 9.7-inch]] only}}
|June 2, 2016
|A previous build of iOS 9.3.2 bricked some iPad Pros 9.7-inch. Build 13F72 fixes this issue
|-
|9.3.3
|13G34
| rowspan="3" |Genoa
|July 18, 2016
|
* Fixes multiple bugs that allow for arbitrary code execution with kernel privileges
* Fixes a bug that allowed a local attacker to access contact information
* Fixes a bug where visiting a malicious website can allow spoofing UI elements
|Bug Fixes
|-
|9.3.4
|13G35
|August 4, 2016
|Fixes a memory corruption vulnerability in IOMobileFrameBuffer found by Team Pangu that allows arbitrary code execution with kernel privileges
|Bug Fixes
|-
|9.3.5
|13G36
|August 25, 2016
|Fixes bugs with the kernel that allow unrestricted memory access and arbitrary code execution
|Bug Fixes
|-
! colspan="6" |Exclusive to iPhone 4s, iPad Mini (1st generation) (Wi-Fi + Cellular), iPad 2 (CDMA) and iPad (3rd generation) (Wi-Fi + Cellular)
|-
|9.3.6
|13G37
|Genoa
|July 22, 2019
|Fixes an issue that would prevent cellular devices from maintaining an accurate GPS position after November 3, 2019
|Bug Fixes
|}
{{notelist}}

== See also ==

* [[OS X El Capitan]]
* [[TvOS 9#tvOS 9|tvOS 9]]
* [[WatchOS#watchOS 1|watchOS 1]]

== References ==
{{Reflist|30em}}
{{Reflist|30em}}


==External links==
== External links ==
*{{official website|https://www.apple.com/ios/|iOS}} official site
* {{webarchive |url=https://web.archive.org/web/20160906075542/https://www.apple.com/ios/ |date=September 6, 2016 |title=iOS 9 }}
* [https://support.apple.com/kb/dl1842?locale=en_US iOS 9 release notes]
* [http://mymobotips.com/how-to-improve-ios-9-battery-life-iphone/ Increase Battery Life on iOS 9 Devices]

{{S-start}}
{{Succession box|title=iOS 9|years=2015|before=[[iOS 8]]|after=[[iOS 10]]}}
{{S-end}}


{{iOS}}
{{iOS}}
{{Darwin derivations}}
{{Apple software}}
{{Apple software}}
{{Apple}}
{{Apple}}
{{S-start}}
{{S-bef
| before= [[iOS 8]]
}}
{{S-ttl
|title = iOS 9
|years = September 2015
}}
{{S-inc}}
{{s-end}}


[[Category:IOS (Apple)|*]]
[[Category:IOS|*9]]
[[Category:2015 software]]
[[Category:Products introduced in 2015]]
[[Category:Mobile operating systems]]
[[Category:Tablet operating systems]]
[[Category:Proprietary operating systems]]

Latest revision as of 07:49, 3 January 2025

iOS 9
Version of the iOS operating system
iOS 9 home screen, running on the iPhone 6s
DeveloperApple Inc.
Source modelClosed, with open source components
Initial releaseSeptember 16, 2015; 9 years ago (2015-09-16)
Latest release9.3.6 (13G37)[1] / July 22, 2019; 5 years ago (2019-07-22)
Update methodSoftware Update
Package managerApp Store
Platforms
Kernel typeHybrid (XNU)
LicenseProprietary EULA except for open-source components
Preceded byiOS 8
Succeeded byiOS 10
Official websiteiOS 9 – Apple at the Wayback Machine (archived September 6, 2016)
TaglineThe most advanced mobile experience. Now even more so.
Support status
Obsolete, unsupported

iOS 9 is the ninth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iOS 8. It was announced at the company's Worldwide Developers Conference on June 8, 2015, and was released on September 16, 2015. It was succeeded by iOS 10 on September 13, 2016.[2]

iOS 9 incorporated many feature updates to built-in apps. Most notably, Notes received the ability to draw sketches with different tools, image insertion, prominent visual appearance for website links and map locations, and advanced list formatting; an all-new Apple News app aggregates articles from different sources; and Apple Maps received mass transit support, although in a limited number of locations at launch. Major new system updates include proactivity, where Siri and advanced search are combined to make the operating system more contextually aware of information (such as time and location), and can provide the user with information ahead of time. For searching, the proactive intelligence can display instant results in a widget-like format, including weather, sports, news, and more. iOS 9 also added multiple forms of multitasking to the iPad. In iOS 9.3, Apple added a Night Shift mode that changes the color of the device's display to a warmer, less "blue light" containing shade, to reduce any negative eye health effects on users' circadian rhythms. Additionally, iOS 9 brought new user experience functions, including Quick Actions, and Peek and Pop, based on the touch-sensitive display technology in the iPhone 6s. Quick Actions are shortcuts on home screen app icons. Users can preview ("Peek") at content without moving away from the current screen before they enter ("Pop") the previewed content into full view.

Reception of iOS 9 was positive. Critics praised proactivity and Siri for making the Notification Center a central location for all information, and the potential for future updates to improve the functionality. The new multitasking features for the iPad were complimented, as were drawing and photo insertion in the Notes app. However, Apple News was criticized for a low number of decent-looking articles, and Apple Maps was criticized for the limited geographical availability of mass transit support.

Five days after release, Apple announced that iOS 9 had been installed on more than 50% of "active" iOS devices, which Apple described as the "fastest adoption rate ever for a new operating system".

iOS 9 is the final version of iOS to feature the classic slide-to-unlock gesture. With the release of iOS 10, Apple introduced the Today view, which was accessed on the lock screen by swiping to the right. Apple removed slide-to-unlock in iOS 10 because it would create confusion when users were trying to unlock their phone by sliding the screen, but instead of unlocking the phone, it took them to the new Today view.[3] iOS 9 is the final version of iOS compatible with devices with the 30-pin dock connector, including the iPhone 4s, iPad 2, and iPad (3rd generation). It is also the final version of iOS that supports the iPad Mini (1st generation) and the last 32-bit iPod Touch, the iPod Touch (5th generation). iOS 9's successor, iOS 10, drops support for devices with A5 or A5X chips.

Overview

[edit]

iOS 9 was introduced at the Apple Worldwide Developers Conference on June 8, 2015, with the first beta version made available to registered developers after the keynote, and a public beta made available in July.[4][5][6]

This marked the first time that the general public had been able to test new versions of iOS before official release, with Eddy Cue, Apple's Senior Vice President of Internet Software and Services, telling Fast Company that the public beta program was started "because of Maps", referring to the company's Apple Maps launch that had significant issues in its early days.[7][8]

iOS 9 was officially released on September 16, 2015.[9][10]

System features

[edit]

3D Touch

[edit]

On the iPhone 6s and iPhone 6s Plus, a touch-sensitive display feature called 3D Touch is incorporated into iOS 9. It is similar to Force Touch, which can be found on the trackpad of some Apple MacBook computers. Quick Actions and shortcuts are added to apps that support the 3D Touch feature and are triggered by pressing slightly harder on the app icon. It also introduces actions known as Peek and Pop, which lets users firmly hold to preview ("Peek") any kind of content in a hovering window, before they optionally apply more pressure to enter ("Pop") the content into full view.[11]

The taptic engine in the iPhone 6S provides haptic feedback each time users press the screen harder.[12]

Battery

[edit]

iOS 9 comes with two important battery-saving updates. When a phone has been placed face-down, the screen will not light up upon receiving notifications. Apple has also added Low Power Mode, which modifies the amount of energy dedicated to background services and animations. For example, background app refresh and push email are paused during Low Power Mode. When a phone reaches 20% battery level, users are automatically prompted to turn on Low Power Mode, which changes the color of the battery icon in the top row status bar on the screen to yellow.[13] When the battery goes higher than the 80% level, Low Power Mode automatically turns back off.[14]

Design

[edit]

San Francisco, a new system font, replaced Helvetica Neue as the system typeface of iOS.[15][16]

iOS 9 added a new battery widget to the Notification Center that displays the battery life and charging status of any connected Bluetooth device.[17][18]

When the shift button is inactive, lowercase letters are displayed on the keyboard, instead of the all-caps representation on previous iOS versions.[19]

Installation

[edit]

iOS 9 is a smaller update than iOS 8, requiring just 1.3 GB of space, compared to 4.58 GB for iOS 8.[20] Additionally, iOS 9 includes an option to temporarily delete apps to allow the update to install. Once the update has been installed, the apps will be automatically reinstalled from the App Store.[20][21] iOS 9 also features "app thinning" functionality, whereby only the necessary assets needed to run apps on each individual device is downloaded rather than the entire app, potentially saving space.[20][22] For example, with the new app thinning technology, when a user downloads a new app onto their new iPhone 6S, the download would only include the images and data that are required on that device, so that no space is required for the images and data that would not be used on the device.

Multitasking

[edit]

For the first time, iOS 9 adds a number of features to the iPad to improve productivity. These include Slide Over, Split Screen, and Picture in Picture, for enhanced multitasking, similar to the experience found on OS X El Capitan. Slide Over allows the user to pull in a second app with a swipe from the right edge of the display. This app takes up 1/3 of the screen and sticks to the right side of the screen, while interactivity within the full-screen app is disabled while left inactive in the background. The feature allows users to perform quick tasks and then dismiss the app again.[23][24]

If the user taps on the handle next to the Slide Over window or extends the window further towards the left of the screen, the user enters Split Screen, which allows them to interact with two apps simultaneously side-by-side in a 50/50 split. Users can also switch to another app in either Slide Over mode or Split Screen view by pulling down on the handle on top of either app and selecting another app from the list to replace the existing one.[25][24]

Picture in Picture mode allows users to minimize FaceTime calls or supported videos to a smaller window and continue watching them while doing other tasks on the iPad.[26][24]

The Split Screen multitasking feature is only available for iPad Air 2, iPad mini 4, and iPad Pro, while the Slide Over and Picture in Picture features are available on the iPad Air, iPad Air 2, iPad mini 2 and newer, and the iPad Pro.[27]

When banner notifications are tapped, causing another app to open, a back button at the top-left corner of the screen has been added, bringing the user back to the previous app.[28]

On iPhone, iOS 9 changed appearance of its app switcher from side-by-side view in iOS 8 to card-like view.[29]

Night Shift

[edit]

Night Shift is a display mode introduced in iOS 9.3. The mode shifts the colors of the device's display to be warmer, similar to F.lux, a popular program for Microsoft Windows and Apple macOS computers.[30][31] When enabled, it uses the device's clock and geographic location to determine when to turn the feature on or off. Optionally, the user can set a manual schedule, or not have a schedule at all. For ease of access, there is a new Night Shift toggle in the Control Center. The settings for Night Shift are located under "Display and Brightness" in the Settings app, and on top of enabling the feature and setting a schedule, the user can also set the warmth of the display.[32]

Despite being introduced in iOS 9.3 in March 2016, it wasn't possible to use Night Shift and Low Power Mode simultaneously until the release of iOS 9.3.2 two months later.[33] Night Shift requires a 64-bit processor only found in the Apple A7 or newer chips, which means older iOS devices, including the iPhone 4s, iPhone 5, iPhone 5c, iPad 2, iPad 3, iPad 4, first-generation iPad Mini, and 5th generation iPod Touch, do not receive Night Shift mode.[32]

Performance

[edit]

iOS 9 includes performance and speed improvements thanks to the expanded use of the Metal API. Metal was introduced in iOS 8 and was previously limited to game developers. In iOS 9, the use of Metal is expanded to let it handle many of the core user interface elements and graphics.[34]

Proactivity

[edit]

Intelligence is one of the main features in iOS 9, consisting of the newly integrated Siri and Search (previously known as Spotlight), as well as "proactivity" throughout the operating system. iOS is now more aware of contextual information (such as time and location), and proactively provides the user with what they may need in advance to save them time and effort. When typing, Search has also been improved to display instant answers in an at-a-glance, widget-like format, similar to that provided in the Siri interface. Search can display current weather, sports scores, news, and more. The Search screen with proactive suggestions can be accessed either by pulling down the notifications window, in the Safari web browser through the search bar, and to the left on the home screen.[35]

The intelligence also extends into apps. For instance, in Mail, events can be automatically added to Calendar if details are found in the message content, and likely additional recipients are suggested during message composition. Siri is also aware of what is currently on screen when it is engaged by holding down the home button.[36]

Security

[edit]

iOS 9 introduces multiple security enhancements. It introduces a 6-digit passcode as a default, an extra two digits over the previous 4-digit default,[37] as well as support for two-factor authentication.[38] 6-digit passcodes were much more secure because there were now 1 million possible passcode combinations compared to just 10,000 for 4-digit passcodes.

The original iOS 9 release in September 2015 fixed a security issue in previous iOS versions, in which a "flaw allowed anyone within range of an AirDrop user to install malware on a target device and tweak iOS settings so the exploit would still work if the victim rejected an incoming AirDrop file".[39][40]

Settings

[edit]

The Settings app in iOS 9 includes a new search bar that makes it easier to find settings and options.[41][42][43] The user also has options to have notifications be grouped by which app they came from,[44][45] and the ability to turn on or off Shake to Undo.[46]

Other changes

[edit]

On iPad, a two-finger drag on the keyboard moves the cursor freely like a traditional trackpad, making positioning the cursor and selecting text easier.[47] The keyboard-to-trackpad feature is also extended to iPhone 6S and 6S Plus, in which users can 3D Touch (force press) the keyboard to enable the trackpad.[48] Also on the iPad, a shortcut bar has been added for cut, copy, paste, undo, and redo functions,[49] and folders display 16 apps per page in a 4-by-4 arrangement, compared to 9 on the iPhone,[50] allowing for an increased total of 240 apps in a single folder.[51]

iOS 9 introduced Wi-Fi Assist, a feature (enabled by default) that automatically switches the phone to cellular data when the Wi-Fi connection is spotty.[52][53][54]

Whenever the user is presented with flight information, the user can click on a link to view a preview for that flight.[55][56]

App features

[edit]

iBooks

[edit]

With iOS 9.3 and later, PDFs saved to the iBooks application via Safari or iTunes can be synced with iCloud.[57]

iCloud

[edit]

iOS 9 has a setting that enables an iCloud Drive app on the home screen. iCloud Drive lets the user save and browse files and folders in iCloud.[58][59][60]

Health

[edit]

The Health app, introduced in iOS 8, has received landscape mode on iPhone. It also added support for reproductive health, UV exposure, water intake and sedentary state data types.[61]

In iOS 9.3, it also tracks sleep, exercise, and weight from the Apple Watch.[62]

Messages

[edit]

Messages now allows the user to search for text and have that text be highlighted (and scrolled).[63]

Maps

[edit]

Apple Maps adds support for transit directions in Baltimore, Berlin, Chicago, London, Los Angeles, Mexico City, New York City, Paris, Philadelphia, San Francisco, Toronto, and Washington, D.C., along with "over 300 locations in China."[64]

The Maps app now also has enhanced location details, including a Nearby feature that recommends shops, restaurants and places to drink in close proximity to the user. For places serving food, users can specify exactly what type of food they want.[65][66]

News

[edit]

iOS 9 includes a new Apple News app (replacing the Newsstand app), which aggregates news from different sources in a similar style as Flipboard.[67] The app features a "mobile-formatted layout that loads quickly and has informative animations and full-bleed images".[4] Additionally, News supports RSS feeds from the Safari web browser.[68] At launch, the News app was only available in the United States, but it was expanded to the United Kingdom and Australia with the iOS 9.1 update.[69]

In March 2016, Apple opened the News platform to all news agencies, including independent bloggers.[70][71]

Notes

[edit]

The Notes app has received a number of enhancements in iOS 9, including the ability to draw sketches with a number of different tools, including a ruler for straight lines. Images can also be added, and links to websites and Map locations get a more prominent, visual appearance when added to notes. On the iPad, and on iPhone in landscape mode, Notes has a range of color options for drawing, as well as an eraser. Advanced formatting options including checked, bulleted, dashed and numbered lists.[72][73]

The app also supports iCloud and allows for easy folder creation.[74]

A secure notes feature, introduced in iOS 9.3,[75] lets an iOS user protect their notes with either a passcode or Touch ID.[76]

Photos

[edit]

The Photos app on iOS 9 included the improved scrubber bar in the photo viewer, "Screenshots" and "Selfies" albums, and the ability to hold and select multiple photos easily, without having to delete them individually.[77] It also allows the user to hide sensitive material through a new Hide option.[78][79] The app also allows the user to pinch to zoom while playing a video.[46][44]

Safari

[edit]

With the release of iOS 9, the Safari web browser allows for third-party content blocking apps.[80][81] Safari also allows users to customize the appearance of the Reader mode, with options for font and background color.[46][82]

A few days after the release of iOS 9, ad blocking software had topped the App Store charts, with Marco Arment, developer of a Peace app, saying that "web advertising and behavioral tracking is out of control. They're unacceptably creepy, bloated, annoying, and insecure, and they're getting worse at an alarming pace."[83][84]

Watch

[edit]

The Apple Watch app was renamed to simply Watch.

Wallet

[edit]

The Passbook application was renamed Wallet in iOS 9 and includes many new changes, such as support for store loyalty cards, gift cards, Discover credit/debit cards, and Apple Pay in the UK.[85] The Wallet app can also be accessed from the lock screen.[86]

Developer APIs

[edit]

In iOS 9.3, a "Music API" allows developers to integrate apps into the Apple Music streaming service.[87]

Reception

[edit]

iOS 9 received mostly positive reviews. Dan Seifert of The Verge praised the improvements in Proactivity and Siri, highlighting how the notification drop-down contains most, if not all, the information the user needs. Although he pointed out that Google's Google Now and Microsoft's Cortana personal assistants offer similar services, sometimes with "better and more varied ways" of achieving results, the improvements to iOS "lay the foundation for even more capabilities in the future."[88] Chris Velazco of Engadget liked the "small, thoughtful" design changes, but was most impressed by the new multitasking features for the iPad, referring to Split Screen as a "lovely little feature." He did, however, criticize the low number of decent-looking articles in Apple News, writing that "you'll notice a discrepancy in how some articles are handled – most are just formatted text on a white background with the outlet's logo up top" and also noted the limited number of locations in Apple Maps that, at launch, supported mass transit directions.[89] Matt Swider of TechRadar wrote that Siri and Proactivity lists were "robust," and enjoyed that notifications were sorted chronologically rather than by app.[90] Samuel Gibbs of The Guardian welcomed the changes to the built-in apps such as drawing and photo insertion in Notes, unknown number identification from emails through Phone, and Siri automatically launching the Music app upon plugging in headphones. He also praised the updates to the keyboard, calling it "much easier to use."[91]

Apple faced a lawsuit over allegedly slowing the iPhone 4s with iOS 9.[92][93][needs update]

On September 21, 2015, Apple announced that iOS 9 had been installed on more than 50% of "active" iOS devices, as measured by the App Store. According to Apple, this was "the fastest adoption rate ever for a new operating system".[94][95]

Problems

[edit]

Error 53 bricking issue

[edit]

In February 2016, news outlets reported that users who updated to iOS 9 on a particular device that had components repaired by a third-party (notably the Touch ID fingerprint recognition sensor) rendered their phone unusable. The issue, named "Error 53",[96][97] was, according to iFixIt, limited to iPhone 6 and 6 Plus devices.[98] Apple stated:[99]

We protect fingerprint data using a secure enclave, which is uniquely paired to the Touch ID sensor. When iPhone is serviced by an authorised Apple service provider or Apple retail store for changes that affect the Touch ID sensor, the pairing is re-validated. ... This check ensures the device and the iOS features related to Touch ID remain secure. Without this unique pairing, a malicious Touch ID sensor could be substituted, thereby gaining access to the secure enclave. When iOS detects that the pairing fails, Touch ID, including Apple Pay, is disabled so the device remains secure.

Apple released a new version of iOS 9.2.1 later in February to fix the issue.[100]

Date reboot issue

[edit]

In February 2016, a bug was discovered that could render 64-bit devices unusable. The bug, caused by setting the date to January 1, 1970, would cause the device to get stuck in a reboot process until the battery died or the time setting shifted past January 1. A similar bug also applies to 32-bit devices, where the battery would report 0% of charge, and the Wi-Fi would be disabled.[101] iOS 9.3, released on March 21, 2016, fixed the issue.[75]

9.7-inch iPad Pro bricking issue

[edit]

In May 2016, Apple released iOS 9.3.2. The update was followed by reports that it bricked some 9.7-inch iPad Pros, with a "Connect to iTunes" message, and an "Error 56" message in iTunes that it couldn't restore the tablet.[102][103]

Apple temporarily stopped offering the 9.3.2 update, until a re-release of the version in June 2016 fixed the issue.[104]

iBooks crash

[edit]

The release of iOS 9.3.3 in July 2016 was followed by reports that the iBooks store crashed.[105] However, Apple explained in August that the timing was a coincidence, and the iBooks app crash was a result of a server issue, not the software update.[106]

Spyware attack

[edit]

The release of iOS 9.3.5 in August 2016 fixed three critical security vulnerabilities. The vulnerabilities could be exploited to silently enable a jailbreak and allow the malicious installation of a spyware called "Pegasus". Pegasus could intercept and read text messages, emails, track calls, trace phone location, activate the microphone, and gather information from apps, including (but not limited to) iMessage, Gmail, Viber, Facebook, WhatsApp, Telegram, and Skype.[107]

The discovery of the vulnerabilities dated 10 days before the 9.3.5 update was released. Arab human rights defender Ahmed Mansoor received a suspicious text message with a link and sent it to Citizen Lab. An investigation ensued with collaboration from Lookout that revealed that if Mansoor clicked the link, it would have jailbroken his phone and implanted it with the spyware. Citizen Lab linked the attack to an Israeli surveillance company known as NSO Group that sells Pegasus to governments for "lawful interception."[108][109]

Regarding how widespread the issue was, Lookout explained in a blog post: "We believe that this spyware has been in the wild for a significant amount of time based on some of the indicators within the code" and pointed out that the code shows signs of a "kernel mapping table that has values all the way back to iOS 7."[110]

News of the spyware received significant media attention,[111][112][113][114][115] particularly for being called the "most sophisticated" smartphone attack ever,[116][117] and for being the first time in iPhone history that a remote jailbreak exploit has been detected.[118]

"Broadpwn" Wi-Fi vulnerability

[edit]

In July 2017, information on a critical Wi-Fi security vulnerability affecting 1 billion iOS and Android devices was published. The issue, named "Broadpwn", allows an attacker to remotely take control of nearby vulnerable devices and turn affected devices into "rogue access points", further spreading the infection to other nearby devices.[119] Apple released a security patch for the issue as part of its iOS 10.3.3 update,[120] though older devices running iOS 9, including the iPad 2, 3rd generation iPad, iPhone 4s, the first-generation iPad Mini, and the 5th generation iPod Touch were left without an available update, causing concerns over the safety of the iPad 2, the 3rd generation iPad, and the first-generation iPad Mini in schools.[121]

iPhone 4s lawsuit

[edit]

On December 22, 2015, Apple faced a class-action lawsuit for crippling the iPhone 4s with the iOS 9 update, with some people even going so far as to say that iOS 9 rendered their devices unusable.[122][123] The 4s only had 512MB of RAM,[124] so it could not handle the iOS 9 update. A settlement was reached in 2022, such that users who downloaded iOS 9 onto an iPhone 4s, while living in New York or New Jersey, could receive $15 each, from a fund of $20,000,000 paid by Apple.[125][126][127]

Activation Error bricking issue

[edit]

Around early 2018, some users who still had devices running iOS 9 with the A9 chip reported being prompted by an "Activation Error" screen that occurred at any random time. Attempting to get out of this error screen would only send the user back to the said screen, unless they restored their device to the latest iOS version in iTunes (which also meant data loss was possible if the device had content in it, as restoring the device wipes everything from it). This bug still persists as of the present day for certain users currently running iOS 9 on their A9 devices, and its cause is currently unknown.[128] As of January 2023, Apple has made no public comment regarding the issue.

Supported devices

[edit]

All devices that support iOS 8 support iOS 9.

Version history

[edit]
Version Build Codename Release date Notes Update type
9.0 13A340[a]
13A342[b]
13A343[c]
13A344
Monarch September 16, 2015 Initial release on iPhone 6s, iPhone 6s Plus, and iPad mini 4
  • Allows Siri to search personal photos and videos based on dates, locations, album names, etc.
  • Ask Siri can now remind users about things they have viewed in apps
  • Siri can now be asked for directions via public transit
  • Phone calls, FaceTime calls, and Messages conversations can now be initiated from contacts searched in Spotlight Search
  • iPad Only
    • Adds Slide Over, allowing users to switch between apps without exiting the current app, for Apple apps and supported third-party apps
    • Split View allows using two apps at once with Apple apps and supported third-party apps, with resizeable windows
    • Picture-in-picture video support for Safari video, FaceTime, Videos, Podcasts, and supported third-party apps
  • Adds support in Maps for public transit, station details, schedules, and directions
  • Adds indicator for Apple Pay support on place cards
  • Allows adding photos to Notes from Photo Library or Camera
  • Can now draw notes with your finger
  • Redesigns the News app
  • Adds support for Discover cards with Apple Pay
  • Apple Pay can be prepared by double-tapping Home and keeping one's finger on Home
  • Increases battery life
  • Software updates now take up less space, can be installed later after downloading
  • Apple apps and the UI now use Metal to render, for better performance
  • Using a six-digit passcode is now default instead of a four-digit passcode
  • San Francisco is now the default system font
  • Wi-Fi assist automatically uses cellular data if Wi-Fi connectivity is poor
  • Content can be transferred from an Android device to an iOS device with the Move to iOS app
Initial Release
9.0.1 13A404 September 23, 2015
  • Fixes an issue where some users could not complete setup assistant after updating
  • Fixes an issue where sometimes alarms and timers could fail to play
  • Fixes an issue in Safari and Photos apps where pausing video could cause the paused frame to appear distorted
  • Fixes an issue where some users with a custom APN setup via a profile would lose cellular data
Bug Fixes
13A405[d] September 24, 2015
9.0.2 13A452 September 30, 2015
  • Fixes an issue with the setting to turn on or off app cellular data usage
  • Fixes an issue that prevented iMessage activation for some users
  • Fixes an issue where an iCloud backup could be interrupted after starting a manual backup
  • Fixes an issue where the screen could incorrectly rotate when receiving notifications
  • Fixes an issue where a lock screen issue allowed access to photos and contacts on a locked device
  • Improved the stability of Podcasts app
Bug Fixes
9.1 13B143 Boulder October 21, 2015 Initial release on iPad Pro 12.9" (1st generation)
  • Live Photos now intelligently senses when the iPhone is raised or lowered, so that Live Photos will automatically not record these movements
  • Over 150 new emoji characters with full support for Unicode 7.0 and 8.0 emojis
  • Improved overall stability, including CarPlay, Music, Photos, Safari and Search
  • Improved performance while in Multitasking UI
  • Fixes an issue that could cause Calendar to become unresponsive in Month view
  • Fixes an issue that prevented Game Center from launching some users
  • Fixes an issue that zoomed the content of some apps
  • Fixes an issue that could cause an incorrect unread mail count for POP mail accounts
  • Fixes an issue that prevented users from removing recent contacts from new mail or messages
  • Fixes an issue that caused some messages to not appear in Mail search results
  • Fixes an issue that left a gray bar in the body of an audio message
  • Fixes an issue that caused activation errors on some carriers
  • Fixes an issue that prevented some apps from updating from the App Store
Feature Update
13B144[e] November 17, 2015
9.2 13C75 Castlerock December 8, 2015
  • Apple Music improvements
    • Ability to create a new playlist when adding a song to a playlist
    • Most recently changed playlist is now listed at the top when adding songs to playlist
    • Ability to download albums or playlists from your iCloud Music Library by tapping the iCloud download button
    • New download indicator next to each song in My Music and Playlists
    • See works, composers, and performers while browsing Classical music in the Apple Music catalog
  • iBooks now supports listening to an audiobook while browsing the library, reading other books, or exploring the iBooks Store
  • iPhone support for USB Camera Adapter to import photos and videos
  • Siri support for Arabic (Saudi Arabia, United Arab Emirates)
  • Bug fixes
Feature Update
9.2.1 13D15 Dillon January 19, 2016
  • Fixes many bugs that allowed local users to execute arbitrary code with kernel privileges
  • Fixes multiple bugs where visiting a malicious website led to arbitrary code execution
  • Fixes a bug that allowed captive web portals to read and write user's cookies
Bug Fixes
13D20[f] February 18, 2016
9.3 13E233
13E234[g]
Eagle March 21, 2016 Initial release on iPhone SE (1st generation)
  • Adds support for a new feature named Night Shift which, manually or automatically (based on user preference), makes the display color warmer so it is easier to view at night. Users can adjust the color temperature in the Settings app
    • Night Shift works only on 64-bit devices
  • Adds support for protecting notes inside the Notes app with a passcode or Touch ID
  • Support for pairing multiple Apple Watches to your iPhone
  • Support for Spanish (Latin America) display language
  • Siri support for Finnish, Hebrew and Malay
  • Fixes an issue where manually changing the date to May 1970 or earlier[129] could prevent 64-bit devices from turning on after a restart
Feature Update
13E236[h] March 25, 2016 Builds 13E236 and 13E237 were issued to devices that were affected by the Activation Lock bug. These re-issued builds helped correct the issue after the prior builds were withdrawn Bug Fixes
13E237[i] March 28, 2016
9.3.1 13E238 March 31, 2016
  • Fixes an issue that caused apps to be unresponsive after tapping on links in Safari or other apps
  • Fixes an issue where connecting to a fake Apple time server which sets system time to January 1, 1970, can cause 64-bit devices to overheat and become unresponsive after a restart
Bug Fixes
9.3.2 13F69 Frisco May 16, 2016
  • Fixes an issue where some Bluetooth accessories could experience audio quality issues when paired to iPhone SE
  • Fixes an issue where looking up dictionary definitions could fail
  • Fixes an issue that prevented typing email addresses when using the Japanese Kana keyboard in Mail and Messages
  • Fixes an issue for VoiceOver users, using the Alex voice, where the device switches to a different voice to announce punctuation or spaces
Bug Fixes
13F72[j] June 2, 2016 A previous build of iOS 9.3.2 bricked some iPad Pros 9.7-inch. Build 13F72 fixes this issue
9.3.3 13G34 Genoa July 18, 2016
  • Fixes multiple bugs that allow for arbitrary code execution with kernel privileges
  • Fixes a bug that allowed a local attacker to access contact information
  • Fixes a bug where visiting a malicious website can allow spoofing UI elements
Bug Fixes
9.3.4 13G35 August 4, 2016 Fixes a memory corruption vulnerability in IOMobileFrameBuffer found by Team Pangu that allows arbitrary code execution with kernel privileges Bug Fixes
9.3.5 13G36 August 25, 2016 Fixes bugs with the kernel that allow unrestricted memory access and arbitrary code execution Bug Fixes
Exclusive to iPhone 4s, iPad Mini (1st generation) (Wi-Fi + Cellular), iPad 2 (CDMA) and iPad (3rd generation) (Wi-Fi + Cellular)
9.3.6 13G37 Genoa July 22, 2019 Fixes an issue that would prevent cellular devices from maintaining an accurate GPS position after November 3, 2019 Bug Fixes

See also

[edit]

References

[edit]
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[edit]
Preceded by iOS 9
2015
Succeeded by