History of iOS

Initial release of the original iPhone.

• iPod: Create playlists, organized by albums, artists, and genres, listen to songs and audiobooks, and watch videos and podcasts
• Phone: Call people, add people to favorites, and group chat
• More apps like Texting, Photos, Mail, Safari, Maps, Stocks, and Weather
• Switch between EDGE and WiFi

• Safari security update.

• Bug fixes.
• Items deleted on phone no longer sync back to phone.
• Able to process multi-line addresses in Maps.
• Custom ringtones no longer lost on restore.

3A101a^P1,T1

• Initial release on iPod Touch (1st generation).

• iTunes Store with home screen icon.

3A110a^T1

• This update is also called the iPhone "September '07 Update" by Apple.^[10]
• Louder speakerphone and receiver volume.
• Home button double-click shortcut to phone favorites or music controls.
• Spacebar double-tap shortcut to insert full stop and space (". ").
• Mail attachments are viewable in portrait and landscape modes.
• Stocks and cities in Stocks and Weather can be reordered.
• Apple Bluetooth Headset battery status in the Status Bar.
• Support for TV out.
• Preferences to turn off EDGE/GPRS when roaming internationally (Data Roaming on/off option).
• New Passcode lock time intervals.
• Adjustable alert volume.
• New interface for the Calculator application.

• Battery charge level shown in iTunes.
• International language & keyboard support.
• Patched the TIFF security bug.
• Adds custom ringtone field.
• Bug fixes.

• Commonly called the iPhone "January '08 Update" and January Software Upgrade by Apple.^[11]
• Free update for iPhone; $19.95 in iTunes for the iPod Touch.
• Mail, Maps, Stocks, Weather and Notes apps for iPod Touch.
• Recent calls contact details now show most recent call times.
• Google Maps on iPhone gains the 'Locate Me' feature which can determine the phone's approximate location, using a combination of cellular triangulation and Wi-Fi data from Skyhook Wireless; also adds hybrid map support and the 'Drop Pin' feature.
• Icons on the home screen can be rearranged and placed on multiple home screens (up to nine).
• iTunes gift cards can be redeemed on the iTunes Store.
• Movies downloaded through iTunes have chapter support.
• Music has lyrics-support feature.
• Web Clips can be added to (and subsequently removed from) the home screen.
• SMS messages can be sent to multiple contacts using messages.
• SMS storage capacity increased from 1,000 to 75,000 messages.
• Default Gmail IMAP setup for new accounts (previously was defaulted as POP3).
• Multi-touch keyboard (e.g. simultaneously pressing "Shift" + "a").
• The clock timer now remembers the last used options (bug fix).
• Incoming SMS messages now prompts the user to "Close" or "Reply" (previously "Ignore" or "Reply"). Pressing either option now marks the message as "seen".
• Labels for contact data can now be deleted.
• Applications on the phone no longer run as root; they run as the user "mobile" instead.
• Ability to listen to music through a Bluetooth headset by going to the voicemail and choosing "Bluetooth" as the audio source no longer works (still works as long as phone is not locked or voicemail screen is active).

• Bug fixes and enhancements.
• SMS scramble order fix.
• More carriers names now fit without scrolling (for roaming on other carriers).
• The camera's frame rate dramatically improved.
• Interface speed improvements.

iPod Touch only

• Security fixes for iPod Touch users who choose not to pay for upgrade to version 2.0.

01.45.00^P2

• Initial release on iPhone 3G.

• $9.95^[13] upgrade for iPod Touch (1st generation).
• Added language support.

• Norwegian, Swedish, Danish, Finnish, Polish, Dutch, Korean, and Brazilian Portuguese language interface in iPhone, previously these languages were only in the iPod Touch since 1.1.1.^[14]
• Extra keyboard languages including Chinese and Korean and Russian.
• Support for Traditional and Simplified Chinese handwriting recognition.

• Mail, contacts, calendars

• Grouped settings.
• Mail

• Push e-mail.
• Ability to select an outgoing email account within Mail application.^[15]
• Support for BCC in Mail application.
• Multiple email delete/move.
• Ability to view MS Office attachments.
• Ability to view iWork attachments, including Pages, Numbers, and Keynote.^[16]

• Contacts

• Contacts icon on "Home" screen (iPhone only, it was formerly on the iPod Touch).
• Ability to search contacts.
• Global Address List.
• Push contacts.
• Ability to import SIM contacts.

• Calendar

• Multiple calendars supported in Calendar with colour-coding (desktop colours only preserved if using Mobile Me).
• New "Calendar" menu in "Settings".^[17]
• Push calendar.

• Enterprise enhancements

• Enforced security policies.
• Device configuration.
• Remote wipe.

• iPod

• Video can be shown in either landscape orientation (instead of just landscape left).
• Videos in playlists & music videos can be shown in portrait or landscape orientation.
• Sound fade-out when exiting a video.

• Other

• App Store (to manage third-party applications) with home screen icon- Store for apps.
• Certificates and Identities.
• WPA2/802.1X.
• Ability to turn Wi-Fi back on while in Airplane mode.
• Cisco IPsec VPN support.
• Ability to take screen captures.
• Ability to save pics from Safari or Mail to Photos.^[18]
• Bonjour service discovery protocol.
• Support for SVG.
• Addition of Parental controls.
• Password letters are momentarily visible while typing.
• Ability to turn Location Services on or off.
• Applications that use Location Services now prompt user for confirmation 3 times.
• Tapping status bar to scroll to top shortcut.
• Updated calculator with extra features in portrait mode, a scientific calculator in landscape mode and an updated icon.
• Updated iTunes with a new icon and reordered category icons within iTunes application.
• Camera now supports Geotagging.^[19]
• YouTube plugin for Safari.^[20]

01.48.02^P2

Bug fixes

• Performance and stability of Contacts and Calendar applications dramatically improved.
• Performance while flipping to landscape mode in Safari improved.
• Performance in Mail app improved.
• Release improves application crash rates.
• Keyboard responsiveness improved.

02.08.01^P2

Bug fixes

• Improved communication with 3G networks.^[21]
• Transition from music list to Cover Flow has changed.^[22]
• Tilt to left from landscape no longer switch to portrait when watching video, fixes 2.0 bug.
• The "Update All" button in the App Store's update tab has been removed.

5F137^T1

5F138^T2

9M2517

02.11.07^P2

September 12, 2008^P1,P2

• Free for iPod Touch users who have upgraded to iPhone OS 2.0.
• Initial release on iPod Touch (2nd generation) (as 2.1.1).

• Companion changes in/with iTunes 8 for this release

• Displays capacity and used space of information on iPhone.^[23]
• Dramatically reduced time to back up to iTunes.^[24]
• Does not remove all media after restore.
• Faster firmware installation and data sync.
• Application updates downloaded from iTunes have new finder naming convention.

• Bug fixes, performance enhancements

• Security fix to prevent from bypassing the double home button exploit.
• Fixed bugs causing hangs and crashes for users with lots of third party applications.
• Faster installation and updating of 3rd party applications.
• Updating applications keeps their icons in place on the home screen.
• Improvements to Mail stability.
• Improved email reliability, notably fetching email from POP and Exchange accounts.
• Faster loading and searching of contacts.
• Auto-correct now appears above the text instead of below (fixing a usability problem people were having where auto-correct would appear above the first row of keys).
• Smoother browsing in Safari, particularly when scrolling up/down on a web page.
• Significantly better battery life for most users.^[24]
• Decrease in call set-up failures and dropped calls.^[24]
• Improved accuracy of the 3G signal strength display.
• Calculator bug fixed affecting calculations involving Pi.^[23]

• OS enhancements

• Triple-click on the control button of headphones now jumps music to previous track played.
• SMS app can alert up to two additional times if you don’t acknowledge an incoming text message (will play the alert sound/vibrate again after a period of time as if a new message just came in).^[23]
• Update supporting languages.
• Option to wipe data after ten failed passcode attempts (after 5 attempts, the device will disable itself for 1 minute. After the 6th attempt, it will disable itself for 5 minutes. In the 10th attempt, it will wipe all data).^[23]
• 3G, EDGE, and GPRS indicators changed.^[23]
• The camera can now be turned off within the restrictions page.^[23]
• When taking a screen-shot of your phone, there is now the camera shutter noise.
• iPhone never gets locked when placed in dock and playing music.

• New application features

• Genius playlist creation.
• More information provided within iPod Music lists (artist and album are now shown below song title when selecting music in addition to remaining time on podcasts).
• More information is provided for audiobooks, such as displaying time left in active audiobook.^[23]
• New podcasts & videos had "filled" blue bubbles next to them to indicate that they were new, now if you have "half-played" a podcast or video, it will include a half filled blue bubble.^[23]
• Sound from iPod now fades out if you start syncing device with iTunes.^[25]
• Bookmarked home screen apps open in full screen.^[26]

• iPod Touch only

• Settings for individual speaker sounds. Sounds can no longer be turned off en masse. All sounds must be turned off individually to mute sounds.
• New speaker sound when sending mail.

• iPod Touch (2nd generation) only

• Nike+ Support.^[27]

5G77a^T2

02.28.00^P2

• Free update for iPod Touch owners that upgraded to iPhone OS 2.0^T1 or 2.1^T2.

• Maps

• Google Street View.
• Public transit and walking directions.
• Display address of dropped pins.
• Share location via email.
• Cache of recent locations.

• Mail

• Resolve isolated issues with scheduled fetching of email.
• Improved formatting of wide HTML email.

• App Store

• "Categories" section has been altered to display icons instead of a list.^[29]
• Individual applications pages now have 'Tell A Friend' and 'Report A Problem' buttons.^[29]
• In an app's description, multiple screen shots can now be viewed, instead of just one.
• "Update All" button added to "Updates" section.
• Option added to rate an application that is about to be deleted.^[30]
• Improved touch response when purchasing or downloading an application.
• Application icons display the install progress "in place" while updating, rather than on the last position of the page.

• Safari

• Improved stability and performance of Safari
• Layout changes for the address bar in Safari^[31]

• iPod

• The edit/clear icons on the on-the-go playlist have been changed.
• Podcasts now are being shown in catalogs.
• You can not delete audiobooks anymore through the device.
• Audiobooks without artwork, are now shown with a book icon and not with a note icon.

• Contacts

• US phone numbers now display correctly (e.g. 1111 2222, previously this would have been shown as 1 111222 2).

• Other

• Podcasts are now available for download or stream in the iTunes application (over Wi-Fi and cellular networks).
• Decrease in call set-up failures and call drops.
• Improved sound quality of visual voicemail messages.
• Visual voicemail unavailability is shown in a screen instead of voicemail button not working.
• Improved performance overall, especially noticeable in Notes and Camera applications.
• Emoji for SoftBank users in Japan.^[32] Can also be enabled in all other countries using apps from the App Store.
• Pressing the Home button from any Home screen takes you to the first Home screen.
• Preference to turn on/off keyboard auto-correction.
• New languages are supported.
• Shows Update/Restore progress when update using iTunes.
• Security improvement.^[33]
• Developers can pipe video out to an external device.
• Better shift-key behavior.
• Automatic WebClip icon change.
• Locked screen screenshots.
• Ability to record from devices connected through the dock port.^[34]

• iTunes

• iTunes now works over EDGE and 3G networks and no longer needs a Wi-Fi network.

• iPod Touch (2nd generation) only

• Line-in audio has been enabled through the headphone jack.
• Add the Remote button to control other devices (e.g. Apple TV, etc.) on the Nike + iPod menu.

5H11a^T2

9M2621a

02.30.03^P2

• Improved general stability of Safari.
• Fixed issue where some images saved from Mail do not display correctly in the Camera Roll.
• Updates baseband.

• iPod Touch only

• Fixed issue that caused some Apple Lossless (ALAC) audio files to skip during playback.

• iTunes 8.1

• Fixes calendar colour syncing issue (Mac only).

• Uses a new baseband which patches the exploit previously used to unlock the iPhone 3G.

04.26.08^P2,P3

• Initial release on iPhone 3GS.
• Limited support on first generation devices (iPhone and iPod Touch)
• $4.95 upgrade for iPod Touch users.^[37]

• Cut, copy, paste added

• Tap and hold for select/select all menu (copy menu in photos).
• Double tap for cut/copy/paste menu all over iOS (SMS, email, Notes, etc.).

• Two point draggable selection handles displayed to better make a selection.

• Undo by shaking.
• In Photos options menu select the copy button to select multiple photos to copy.

• More/System/Navigation

• Turn-by-turn navigation.
• Lithium-ion polymer battery usage up to 5% better.
• A-GPS accuracy improved (+5% better).
• Earth magnetic compass support.^P3

• Compass App.^P3

• Maps

• Features iPhone users got in 2.2 now added for the iPod Touch (e.g. Google Street View, public transit and walking directions, display address of dropped pin, share location via email, and cache of recent locations). Changed behavior when routing directions and showing steps.

• Stocks

• Landscape mode that enabled viewing detailed price and change information by dragging one or two fingers across the full-screen chart.
• Metadata display for detailed information about the symbol, including full company/fund name, market capitalisation, price to earning ratio, dividend yield, and statistics about the day and year price range.
• Table of news stories from various internet sources related to the selected symbol.

• YouTube

• Can now log into account.

• View subscriptions, Favorites, My Videos, History, and Playlists
• Comment on videos, rate videos

• Phone

• Recent Calls now show more details (call length, etc.).
• Ability to change/set "own number" (my number) in the SIM card. Will be displayed in the Contacts list and iTunes, as well as possibly used for MMS identification.
• Contacts are editable via Recent Calls.

• Camera and Photos

• Video recording in Camera app.^P3

• Videos can be trimmed directly from Camera app.

• Camera now has a thumbnail of the previous photo captured. The thumbnail also acts as a shortcut to "Camera Roll" allowing for view/delete of photos without exiting the camera app.
• Camera now has autofocus. To change what is being focused on, simply tap on what you wish to now have the camera focus (iPhone 3GS only).
• Photos options menu changed (new UI, added copy button).

• Can now delete multiple photos.

• App Store

• Installs new apps from the second home page on. You can still move the apps to the first home page manually.
• Screenshot browsing method has changed.

• SMS application renamed to Messages

• Application icon was slightly modified, it no longer has the letters "SMS".
• Sending progress bar has been moved to the title bar and does not cover up the screen.
• Sending queue (compose a new message(s) while sending others).
• Select single or multiple messages to forward or delete.
• SMS entry text box have unlimited lines (actually limited by the screen).
• MMS functionality including sending vCards, pictures, audio files, video (depends on mobile network availability).^P2,P3

• Optional Subject line in the Messages settings.
• Photos can be taken/sent directly from the Messages app.
• MMS messages are played/viewed in the Messages app.

• Mail, contacts, calendars, MobileMe
• MobileMe now has a "Find My iPhone" option, allowing MobileMe users (via the online service) to remotely locate device and wipe data.^[38]

• CalDAV Calendar support.
• LDAP Contacts support.
• iCalendar Subscription support.
• "Load Remote Image" option for mail, to prevent spam.
• iWork '09 attachment support.
• Mail several photos in the same message.
• Mail can now be composed in other apps without leaving the current app (only if the developer allows this).
• It's now possible to store IM account information for a contact for the following services: AIM, Yahoo!, MSN, ICQ, and XMPP.
• Users can now view or create 'Invitees' on a Calendar event.^P3Safari

• Better support for Internet standards and now scores a 97/100 in the Acid3 test.
• Renders JavaScript from 3 to 16 times faster depending on circumstances.
• Support for HTML5.
• New features in Settings such as AutoFill, and Anti phishing.
• Pressing and holding a link gives three options: Open, Open in New Page and Copy.
• View subscriptions.
• The last page is now closable, which will result in a new blank page opening (won't save page info on exit, increases available memory).

• Bluetooth

• Bluetooth enabled for iPod Touch (2nd generation).^[39]
• A2DP: stereo audio.^P2,P3,T2,T3
• AVRCP: Play/Pause/Stop for iPod app (no Next/Back yet).

• Device side audio control still enabled but does not affect audio stream.

• PBAP: wireless phone book access (for use with vehicle head units).
• PAN: personal networking for tethering and ad-hoc connections between mobile devices (multi-player gaming).

• iPod

• Shake to shuffle songs in iPod app.
• Search through iPod.
• Scrubbing through tracks can now be done at 4 variable rates as user moves finger down the screen, and the speed is displayed on screen ("Hi-Speed", "Half Speed", "Quarter Speed", "Fine").
• (When Bluetooth is enabled and a paired audio device is present) Audio output menu added to "Now Playing" screen and Home button iPod controls.
• Location dot while playing video/music now glows while you scrub the track/video.
• Podcasts

• More details shown: time remaining, etc.
• Can be played at "½x", 1x, or "2x" speed (actual speeds are 0.8x, 1x, and 1.5x).
• 30 second rewind button.
• Can be emailed.

• Improved language support.^[40]

• Added new language support such as Arabic, Greek, Hebrew, Indonesian, Malay, Portuguese, Romanian, Thai and more.
• Foreign language keyboards extended to cover additional characters.

• New Developer APIs

• Push notifications for 3rd party applications.
• Bluetooth services including A2DP, LDAP, P2P file sharing, and Bonjour.^P2,P3,T2,T3
• New APIs in the Maps application allow developers to build it into software.
• Developers can now use CoreLocation to make Turn by Turn applications.
• API support for serial I/O through the Dock Connector.
• 3rd party apps now have access to iPod music library.
• Support for outbound audio and video streaming.
• In-app additional payment API for paid applications (free apps always remain free).

• Sign in with iTunes account.
• Buy service subscriptions or app add-ons.

• Spotlight Search

• Saves its last search results and offers options for excluding applications from searches.
• Partial search for mail, iPod, contacts, events, notes, apps, and web clips.

• iTunes/sync.

• iTunes version 8.2.
• iTunes account creation on device.^[41]

• Can now sign out of iTunes account and use a different iTunes account.
• iTunes account info can be accessed and edited.
• Can now read and write reviews for content on iTunes.
• Movies, TV shows, audiobooks, and iTunes U content can now be purchased on iTunes Wi-Fi store.

• Notes syncing.
• Voice memos syncing (audio files added to a "Voice Memos" playlist).
• Backups can now be encrypted and password protected.

• Tethering over USB and Bluetooth (depends on mobile network ability).^P2,P3

• USB tethering auto activated when connected to USB on iTunes 8.2+ (if tethering is enabled in iPhone settings and by phone's carrier).
• iTunes 8.2 now includes a USB driver for iPhone tethering.
• Full access to iPhone possible while tethered.
• (In Windows) iPhone shows up as a standard ethernet connection.

• Accessibility settings (for the visually/aurally impaired) (iPhone 3GS only).^[42]

• VoiceOver gesture-based screen reader. Touch screen to hear a description of the item under your finger, then double-tap, drag, or flick to control iPhone. Speaks 21 languages and works with all apps.
• Zoom, magnifies entire screen on any app up to 5 times normal size. Move left, right, up, and down to view any portion of the screen close-up.
• White on Black, changes display to white on black (instead of the normal black on white), works in any app, and alongside with Zoom and VoiceOver.
• Mono Audio, if users hearing is limited in one ear, routes both right- and left-channel audio into both earbuds, so you can hear both channels in either ear.
• Speak Auto-text, works with VoiceOver to automatically speak auto-corrections and auto-capitalisations.

• Other

• Device automatically connects and authenticates to Wi-Fi hotspots which need username and password (e.g. Starbucks, McDonalds).
• Locate Me for the iPod Touch accuracy improved.
• Restrictions have been updated and now block "Current Location" and allows setting what content is appropriate for iPod music/videos/TV shows and apps.
• 11 home screen pages instead of 9. Now can store 180 apps (including native applications. i.e. Phone, iPod, Safari).^[43]
• Voice control (ability to voice dial and control iPod).^P3,T3
• Nike+ Support.^P3,T2,T3
• Stopwatch now shows both the total running time and the current lap time in the upper part of the clock app.
• Landscape mode added to several applications—Messages (SMS), Mail, Stocks, Contacts, and Notes.
• Right to left support.
• Numeric battery percentage view.^P3
• Holding the home button will no longer force quit an unresponsive application. To force quit an application in 3.0 hold the sleep/wake button until the red power off slider appears. Then hold down the home button to quit the unresponsive application.
• Screen captures are no longer numbered separately from photos taken with the camera application; all new images in the camera roll now use a common numbering sequence.

• Voice Memos

• New native app.
• Voice memos can be trimmed directly from app.

04.26.08^P2,P3

• Fixes SMS vulnerability^[44]
• Bug fixes

7C145^T1,T2,T3

7C146^T3

05.11.07^P2,P3

• Initial release on iPod Touch (2nd generation) (8 GB MC model) and iPod Touch (3rd generation).
• Version 3.1.1 on iPod Touch (iPod Touch (3rd generation) only).
• Free update for iPod Touch (all models) owners that upgraded to iPhone OS 3.0.
• Free update for all iPhone owners and $4.95 for iPod Touch users who have not updated to iPhone OS 3.0.

• Improved Wi-Fi for iPhone 3G with Bluetooth turned on.
• Ask to Join Networks toggle is hidden unless Wi-Fi is on.
• Faster boot up time and various speed improvements.
• Trimming video clips on the iPhone 3GS now offers the ability to save the edited version as a copy rather than simply overwriting the original file.
• Safari now has a toggle for "Fraud Protection" under its Settings pane.
• Bulgarian keyboard is in the Bulgarian State/National Standard layout, not QWERTY layout.
• On iPod Touch (2nd generation) the Voice Memos app now successfully records audio if you plug your microphone after you have started the application.
• Numbers inside Notes have more options when tap and hold is triggered: Call, Text Message, Create New Contact, Add to Existing Contact.
• Voice control over Bluetooth is now available, allowing users to initiate calls and control music playback via Bluetooth headsets (however, voice control while plugged into car audio systems no longer works).
• Improves reception.
• Fast forward & rewind from headphones.
• Improved Exchange calendar syncing.
• Home screens can be customised on iTunes 9.
• Developer Extras.

• Improvements to OpenGL and Quartz.
• APIs allow third party apps to access videos and edit them.

• Gives programmers their choice of video recording quality.

• A pair of new app interface classes that are known to relate to graphics, but which haven't had their functions identified.

• New camera APIs.
• Calendar event alerts will be shown also with a pop-up, much like push notifications.
• Enables connectivity to devices for developmental purposes wirelessly instead of requiring tethering via the dock connector.
• Ability to save videos from Mail or MMS.
• Ability to copy and paste full quality videos from camera into email.
• Anti-Phishing in Safari.
• Under usage tab in settings able to view data sent and received over tethering.
• Instruments over Wi-Fi.
• New enhancements to Core Audio in iPhone.
• Failover support for HTTP live streaming.
• Added for iPod Touch (3rd generation) (only the 32 & 64 GB versions).

• Voice control.
• Added accessibility features from iPhone 3GS, including VoiceOver.

• Accessibility features can be toggled On or Off by triple-clicking the Home button.
• Option to practice VoiceOver gestures.
• Fixed an issue that caused app icons to display incorrectly.
• Genius Mixes.
• Genius Recommendations for Apps.
• Sync videos to albums.
• iTunes U content organisation.
• Redeem Gift Cards in App Store.
• Display available iTunes account credit.
• Enhanced iTunes support.
• Ability to copy and paste telephone numbers in dialer application.
• Sponsored links in Maps.
• Direct copy of contact info.
• Bug fixes.
• Security improvements.^[45]
• Now fully supports device encryption for Exchange.
• Uses a new baseband which patches the exploit previously used to unlock the iPhone 3G/3GS.
• Adds separate usage metering for tethering data.

05.11.07^P2,P3

• Attempt to resolve sporadic issue that may cause iPhone / iPod Touch to not wake from sleep.
• Resolves intermittent issue that may interrupt cellular network services until restart.
• Fixes bug that could cause occasional crash during video streaming.

Final release supported on first generation devices iPhone (1st generation) and iPod Touch (1st generation)

• Improves accuracy of reported battery level on iPhone 3GS.
• Resolves issue where third-party apps would not launch in some instances.
• Fixes bug that may cause an app to crash when using the Japanese Kana keyboard.
• Fixes security bugs in Core Audio, ImageIO, Recovery Mode and WebKit.^[46]
• Uses a new baseband which patches an exploit previously used for jailbreaking the iPhone 3G/3GS.
• Updates WebKit to 528.18.

iPad only^[47]

• Initial support for iPad.
• Initial support for landscape home screens.
• Includes new frameworks for recognizing custom gestures, custom keyboards etc.
• Allows display output to an externally connected display for compatible 3rd party apps.
• Allows user to change home screen background.
• Adds Terrain view in Maps application.
• Location-based services rely on Apple's own databases instead services of Google and Skyhook Wireless.^[48]
• Allows transferring files between a computer and the device for a shared (per app) document store that all applications can access (iOS file sharing). Only available for the iPad.
• Allows use of Apple Bluetooth keyboard (possibly other keyboards).
• Includes a built-in dictionary which can be used in iWork and iBooks (possibly other apps too).
• The Dock is now able to hold up to six icons.
• The iPod app allows the user to create and name custom playlists.
• Safari's new thumbnail view allows the user to navigate to up to nine active pages (similar to Top Sites on Safari for Mac OS X).
• Places in the Photos app allows the user to view their photos by location (needs iPhoto '09).
• 720p HD videos are available in the YouTube app.
• Share YouTube videos to Facebook.

iPad only

• Better Wi-Fi connection.
• Bug fix in Mail so it does not crash any more when doing copy-and-paste from a one-page PDF document.
• Bug fix in Video playback so that videos no longer freeze in certain situations.
• Better reliability when using the iPad Dock Adapter to VGA.
• Added Bing as a search engine in Safari.
• WebKit version 531.21.10.

iPad only

• Patches PDF exploit which allowed jailbreaking through Safari.^[49]

01.59.00 ^P4

iPhone and iPod Touch only

• Initial release on iPhone 4.
• Limited support on iPhone 3G and iPod Touch (2nd generation).

• Multitasking.^P3,P4,T3

• User interface for app switching by double clicking Home button.
• Portrait orientation lock.^P3,P4,T3
• iPod control widget.

• FaceTime direct video calling ability over Wi-Fi (iPhone 4 and later, iPod Touch (4th generation), iPad 2, and Mac OS X users).
• iBooks sync support through iTunes for iPhone and iPod Touch.
• iAd mobile advertising network.

• Settings

• App-specific location settings.
• Cellular data toggle (on-off).
• "Complex Password" setting: passwords with alphabet characters and numbers.
• Simple Passcode Lock (4 digit number) option.
• New wallpapers.
• Wallpaper available for Home screen.^P3,P4,T3
• New wallpaper preview for Home screen and lock screen.
• Set up Internet tethering.
• New Gmail and Exchange icons in Mail, Contacts, Calendars account settings.
• Support multiple Exchange accounts.
• Custom Dictionary.
• Airplane Mode for iPod Touch.
• Separated Sounds settings from General settings.

• Home screen

• Ability to categorise apps into folders with default folder naming based on category name in App Store.
• Up to 2,160 instead of 180 visible apps (12 apps per folder).
• Folder name supports up to 13 characters.
• Custom Home screen wallpaper.
• Dock redesigned to that of the iPad.
• Rate on deleting app removed.
• Default Utilities folder which contains the Clock, Calculator, Voice Memos and Compass apps.
• Revised SpringBoard scrolling.

• Camera

• Up to 5x digital (as opposed to optical) zoom feature on the Camera app.

• Photos

• Categorised by Albums, Faces, Events and Places (under iPhoto in Mac OS X).
• Select multiple photos for mass deletion.
• Support landscape mode.

• Camera Roll

• Categorisation by All, Photos and Videos.
• Support landscape mode.

• App Store

• Ability to gift apps.

• Maps

• Unified "locate me" icon.
• Background location icon shown on status bar.

• iPod

• Playlist creation on device.
• Nested playlists.
• Lyrics and Podcast info on Setting.
• Volume control with Bluetooth headsets.
• Album art displayed in Album view.

• Notes

• Notes syncing with MobileMe, Gmail IMAP and Yahoo! Mail.
• Accounts management appears if syncing is enabled.
• Notes setting below Mail, Contacts, Calendars Settings if syncing is enabled.
• Moved search box into title bar.

• Calendar

• Birthday calendar.
• CalDAV invitations.
• Ability to edit which calendar an event is located in after the initial saving.
• Ability to select any combination of calendar categories to view.

• Contacts

• Unified info by linking contacts from different accounts.
• CardDAV.
• Streamlined "New Contact" screen.

• Spotlight

• Search with Web or Wikipedia.
• Search Messages.

• Safari (Webkit version 532.9)

• Bing is now a search option, along with Google and Yahoo!.
• Recent searches below search field.
• Top hit in search.
• Suggestions appear below search field for all 3 search engines.
• Unified "Search" keyboard button when search field being used.
• In-page audio playback.

• Voice control

• The ability to ask what the current time is.^P3,P4,T3

• YouTube

• Rotate & zoom videos in vertical and horizontal position.
• Latest 480p for smoother and quicker video playback.

• Accessibility

• Larger fonts in Mail, SMS & alerts.^P3,P4,T3
• Automatically speak auto-corrections and auto-capitalisations.

• Message

• Include a Search bar.
• Character count (can be enabled or disabled in Settings > Messages screen).
• Failed SMS notification.
• Option to toggle off the ability to send group messages.

• Mail

• Unified inboxes.
• Edit from outbox.
• Support for multiple Exchange accounts.
• File & delete Mail search results.
• Organise by thread in Mail.
• Quick look attachments.
• Open attachments by registered filetype with corresponding apps from the App Store.
• Smart links for dates and addresses.
• Contact pictures in emails.
• Create Calendar events from dates within emails.

• International

• Spell check.
• Added Cangjie and Wubihua keyboards for Simplified and Traditional Chinese.
• Text replacement between Simplified and Traditional Chinese.
• Switch keyboard shortcut (holding the "Earth" button on keyboard for a while).
• Added support for Danish voice control.
• New languages added (Catalan, Hungarian, Vietnamese).

• Other

• Support for Apple Bluetooth keyboards.^P3,P4,T3
• Persistent Wi-Fi.
• Added support for iBooks application.
• Wake on wireless.
• Auto-join and auto-login and IPv6 on individual Wi-Fi networks setting.
• Enhanced data protection.^P3,P4,T3
• Wireless app distribution.
• Mobile device management.
• SSL VPN support (both Juniper and Cisco).
• Microsoft Exchange Server 2010 support.
• Improved Bluetooth driver for A2DP devices.
• Improved iOS animations.

• Note: iPod Touch (1st generation), and iPhone (1st generation) devices are not supported, while iPhone 3G, and iPod Touch (2nd generation) have limited support. iPhone 4, iPhone 3GS, iPod Touch (3rd & 4th generation) are all fully supported.

01.59.00 ^P4

iPhone only

• Updated carrier signal strength display.

• Increase in the length of the smaller signal bars.
• The method in which signal strength is calculated was modified (as a result of the antennagate issue).

• Fixed Exchange ActiveSync issues.
• Only official SIM card number can be used for FaceTime identification.

01.59.00 ^P4

iPhone and iPod Touch only

• Patches a PDF exploit which allowed jailbreaking through Safari.^[50]

02.10.04 ^P4

• Initial release on iPod Touch (4th generation).

iPhone and iPod Touch only

• Improved calendar colours.
• Bug fixes

• iPhone 4 proximity sensor issues.
• Bluetooth connectivity.
• Improved performance on iPhone 3G.^[51]
• Nike + iPod fixes and the Retina Display (iPhone 4 only).
• Fixes white balance issue with iPhone 4 under certain lighting conditions.
• Fixes FaceTime error where iPhone 3G and iPhone 3GS users could enter "facetime://" URLs in Safari.

• Game Center. ^{P3,P4,T2,T3,T4,[52]} no support for iPhone 3G^P2,[53]
• Security updates to accessibility, FaceTime, ImageIO and WebKit.^[54]
• Enables FaceTime call connection via email contacts (e.g. for iPod Touch (4th generation) users who won't have a phone number) and through favorites.^[55]
• Nike + iPod statistics submissions over Wi-Fi.
• High dynamic range imaging (HDR) (only available for the iPhone 4).^[52]
• HD video upload over Wi-Fi (iPhone 4, and iPod Touch (4th generation) only).^[51]
• iTunes adds Ping, a social music network and discovery tool (only available in countries with iTunes Store).^[52]
• TV show rentals (only available for iTunes US Store).^[52]
• Can move an existing appointment from one calendar to another.
• Notes syncing removed from iPhone 3G due to reported performance problems.^[56]
• Restores Field test mode.^[57]

8C148a ^P3

03.10.01 ^P4
07.10.00 ^S1C

• iOS 4.2 was replaced because of a Wi-Fi bug in beta 3, causing Apple to release two golden masters (4.2 GM and 4.2.1 GM)
• Initial release on iPad 2.
• Final release supported on iPhone 3G and iPod Touch (2nd generation)

For iPhone, iPad, and iPod touch

• Bug fixes

• Birthdays calendar does not display birthdays starting more than 77 years ago.^[59]

• AirPlay (replacement of AirTunes, AirPlay will offer stream video, music, and photos over Wi-Fi).^[60]
• AirPrint wireless printing with Print Center (select models).^[60]
• Import .ics calendar files directly for events.
• Improved battery performance.
• Birthdays icon has been changed in the Calendar app.
• Updated Carrier Settings (US is AT&T 9.0, UK is O2 9.1, Germany is Deutsche Telekom 9.0).
• Text search on web pages.^{P3 P4 T3 T4[60]}
• 2 new fonts for Notes in Settings (Helvetica and Chalkboard).
• Safari 6533.18.5, WebKit 533.17.9.
• Added support for Chinese URL over Safari.^[61]
• Added an indicator in the App Store which shows if an app supports Game Center.
• Support for CoreMIDI.
• YouTube voting.^[62]
• Minor improvements in UI graphics.
• New parental controls for deleting apps, changing mail accounts and location services.^[62]
• The font size of text in Calendar can now be changed in the Accessibility settings.^[63]
• Security fixes.^[64]
• Network-controlled fast dormancy implemented in baseband to improve battery life and reduce network congestion.^[65]
• Fixes intermittent Wi-Fi issues in iOS 4.2 beta 3, which were retained in iOS 4.2 GM.
• Fixes VoIP issues.
• Find My iPhone location feature is free (iPhone 4, iPod Touch (4th generation), & iPad) running on iOS 4.2.1.^{P4, T4, S1, S1C}

iPad only

• 4.x support for the iPad.^[60]
• iOS 4 features for iPad (multitasking, folders, etc.).

• Up to 4,400 icons instead of 220 (20 apps a folder).

• Updated carrier signal strength display (3G iPad only).

• Increase in the length of the smaller signal bars.
• The method in which signal strength is calculated has been enhanced.

• Additions to the multitasking tray.

• Brightness.
• Volume control.
• AirPlay controls.
• Screen rotation lock switch.

• Physical iPad screen rotation lock switch is converted into a sound/silent switch in iOS 4.2 (just like on the iPhones), with a virtual screen rotation lock switch added to the multitasking tray.
• More than 30 new keyboards and dictionaries, including Arabic, Greek, and Hebrew.
• New multitasking animation.
• New bookmarks design.

iPhone and iPod Touch only

• Bug fixes.

• Fixes glitch that can let a user get into the Phone app while the phone is locked via "Emergency Call" by dialing a random number and quickly pressing the lock button after dialing that call.^[66]
• Fixes the alarm bug caused by daylight saving time changing, affected on a part of iPhone and iPod Touch owners living in various countries.^[67]
• Improved iPhone 3G and iPod Touch (2nd generation) performance.^[68]

• Additions to multitasking tray.

• Volume controls.
• AirPlay controls.

• New Voice Memos icon.
• Ability to initiate FaceTime calls from Voice Control.
• FaceTime shortcut from Messages app (iPhone 4 only).^[62]
• New text tone alerts (New & Original tone lists) (iPhone 4 only).
• Ringer & alerts on/off switch (Settings > Sounds) for volume buttons (iPhone only).
• Assign different text tone alerts to each contact.
• Restores full field test mode.

• Initial release on iPhone 4 (CDMA, Verizon version).
• Personal Hotspot feature.

Bug fixes

• Personal Hotspot bug fixes.

• Security update.
• Baseband update.

Bug fixes

• Reduced size of the iOS crowd-sourced location database cache.
• No longer backs the cache up to iTunes.
• Deletes it entirely when Location Services is turned off.

Security Updates

• Disabled the possibility of viewing a maliciously crafted PDF file that may lead to an unexpected application termination or arbitrary code execution.
• Disabled a malicious code running as the user may gain system privileges.

Security Update

• Fixes a security vulnerability with certificate validation.

8F191 ^{S2 S2C S2D}

04.10.01 ^{P4 S2C}

07.11.00 ^S1C

2.0.4 ^S2D

• Implementation of ASLR for increased security.
• AirPlay video support for third party apps.
• HTTP Live Streaming statistics.
• New font in Notes app ("Noteworthy").
• Improved Safari performance with "Nitro" JavaScript engine.
• Redesigned “account” section under the Store menu.
• Ability to switch on automatic downloads (for iTunes Music and App Store applications).
• Location services have been shifted from General to Settings menu.
• New parental controls for use with Ping.
• New menu for scrubbing in videos.

• Fine scrubbing: adjust by seconds / frames.
• Quarter scrubbing: second.
• Half speed scrubbing: adjust by minute(s).
• Hi-speed scrubbing: run fast through minutes.

• Ability to cancel and delete an app which is currently downloading. Before iOS 4.3, it was only possible to delete an app which had already downloaded.
• Stream from an iTunes library to iOS using Home Sharing.
• In-app purchases always ask for a password, even if one has previously been entered.
• Internal system clock gets network time updated more frequently via NITZ (part of the official GSM standard since phase 2+ release 96) and gives a more accurate time for the device, it updates about every five days.

iPhone only

• Personal Hotspot feature (Wi-Fi hotspot with up to 5 simultaneous devices (Wi-Fi hotspot iPhone 4 only^[69])) on supported carriers.
• Ability to set amount of times a text tone repeats (up to 10 times).
• In field test mode refresh button has been removed & updated information has been displayed in bottom of the screen (it updates every 4–6 seconds).
• Slideshow options moved to Photos app.
• New look for taking a picture for a Contact.
• When receiving a text message, the iPhone now vibrates 2 times.
• Some SMS tones have been shortened.

iPod Touch only

• New FaceTime icon (iPod Touch (4th generation) only).
• Added FaceTime command in voice control (iPod Touch (4th generation) only).
• New look for taking a picture for a Contact (iPod Touch (4th generation) only).
• SMS App access through sms:num links is disabled.

iPad only

• Ability to choose function of iPads physical switch between rotation lock or mute.
• Fullscreen iAd banner format.
• Photo Booth & FaceTime app (iPad 2 only).

Bug fixes

• Fixed issue that prevented controls from being dismissed in some cases.
• Addressed issue where the keyboard could not be brought back when highlighting and swiping through search results.
• VoiceOver now reads the entire chart in Stocks app while in landscape mode.
• Fixed slideshow stop after 15 images when using AirPlay.
• 05.16.01 (for iPhone 3GS), 04.10.01 (for iPhone 4).
• Updated carrier settings (US is AT&T 10.0, UK is O2, 10.0, Portugal is Optimus 10.0).
• Enabled traffic volume indicator IE. in cell update (iPhone and iPad Wi-Fi + 3G only).
• Fixed canceled recurring calendar events still showing on the event list.
• Fixed deleting a recurring event make the alarm go away.
• Fixed all-day alarm fired an hour early.
• Fixed missing accented letters in European keyboard popups.
• Increase font size for China and Pinyin inputs.
• Fixed auto-correction issue when switch back from Emoji to English keyboard.
• Fixed orientation of mail application not following device orientation under specific conditions.
• Fixed mail message view and orientation when quickly selecting a message and hitting edit mode.
• Fixed MMS messages with vCards scrolling up.
• Added [Address Space Layout Randomisation] (ASLR).^[70]
• Added new icon for Wi-Fi tethering for personal hotspot on status bar.
• Fixed issue that caused Safari and other apps to crash after loading certain heavy Web sites.
• Fixed Personal Hotspot password failure with 22+ characters.
• Added support for “find” in Safari.
• Fixed wallpaper titles for VoiceOver.

04.10.01 ^{P4 S2C}

07.11.01 ^S1C

2.0.4 ^S2D

Bug fixes

• Fixed graphics glitches on iPod Touch (4th generation).
• Baseband updates for the iPhone 3GS and iPad (1st generation).
• Fixed memory hang that results in memory corruption when reading large files from USIM filesystem.
• Fixed problem with NTLM authentication in apps and on websites.
• Fixed issue with the Springboard and 3rd party apps not recognizing the gyroscope on the iPad 2.
• Resolves bugs related to activating and connecting to some cellular networks.
• Fixes image flicker when using Apple Digital AV Adapter with some TVs.
• Resolves an issue authenticating with some enterprise web services.
• Changes the behaviour of the battery percentage.

8H8^S2D

04.10.01 ^{P4 S2C}

07.11.01 ^S1C

2.0.4 ^S2D

Bug fixes

• Fixed issue with blank or frozen video during (or before) a FaceTime call.
• Fixed issue with connectivity to 3G networks on iPad Wi-Fi + 3G.
• Fixed issue where Exchange redirection does not occur when Activesync server is on an Exchange 2010 server and user mailbox is on Exchange 2007.

8J3^{S1 S1C}

04.10.01 ^{P4 S2C}

07.11.01 ^S1C

2.0.4 ^S2D

Bug fixes

This update contains changes to the iOS crowd-sourced location database cache.

• Reduced size of the iOS crowd-sourced location database cache.
• No longer backs the cache up to iTunes.
• Deletes it entirely when Location Services is turned off.
• No longer allows user to remove apps that have not been completely downloaded.

04.10.01 ^{P4 S2C}

07.11.01 ^S1C

2.0.4 ^S2D

• Re-introduced the ability to cancel and delete apps that are currently downloading.
• Jailbreaking patches.
• Disabled the possibility of viewing a maliciously crafted PDF file that may lead to an unexpected application termination or arbitrary code execution.
• Disabled a malicious code running as the user may gain system privileges.
• Disabled "incomplete signing attacks", blocking "Untethered" jailbreak.

2.0.4 ^S2D

'

Security Update

• Fixes a security vulnerability with certificate validation.

05.16.05 ^P3 07.11.01 ^S1C 1.0.11 ^P4S
3.00.03 ^{P4C S2D}

• Initial release on iPhone 4S.
• Limited support on iPad (1st generation) and iPod Touch (3rd Generation).
• All notifications concentrated to Notification Center: swipe downwards from the status bar to open it. Notification center shows a list of all notifications and widgets (widgets available only on iPhone & iPod Touch).

• Notification order can be arranged.
• Choose Notification Type: Banner notifications, the classic pop-up notifications, or no notification at all (selectable on an app-by-app basis).
• Notification list on lock screen. Swipe an icon to unlock and go to the specific notification.
• Notifications announcing earthquakes with 2 minutes (only in Japan).^[73][74]

• Messages

• Messaging between all iOS devices running iOS 5 through Wi-Fi or 3G. Allows to send text, photos, videos, contacts, and locations.
• All iMessages and conversations will be synced between all iOS devices linked under a single Apple ID. You can start a conversation on one device and continue it on another.
• Can message between multiple people simultaneously (group messaging).
• Shows when other person(s) is typing.
• Delivery receipts.
• Optional read receipts (enable in Settings).
• Animated GIF image support for iMessage.
• Ability to set how many times an alert will be shown when a new message is received (ranges from once to ten times).
• The name of the person that responds appears in small light blue text directly above the response when SMS is sent to a group.
• Slight redesign for text messages. Font & time-stamp layout.
• Hide keyboard; hidden by downwards scrolling in message screen (after being used to type a message). Unhidden again by tapping in text entry field.

• Newsstand

• A new icon on the home screen, which opens to an iBooks-inspired folder which shows all papers and magazines downloaded from the App Store.
• Subscriptions to newspapers and magazines available for browsing and downloading in a dedicated section of the App Store, stored in the Newsstand folder.

• Reminders

• "To-Do list" functionality in Reminders app.
• Date-based reminder notifications.
• Location-based reminder notifications that can be set to when you leave, or arrive a specified area (^P4,P4S).

• Twitter integration

• Tweeting from native applications: Photos, Camera, YouTube, Maps, and Safari using new Tweet Sheet which supports multiple accounts.

• Music

• iPod app now split and renamed to Music and Videos (iPhone and iPad only; was always split on the iPod Touch).
• Video podcasts can only be found in the Videos app.
• Ability to play content while the device is synchronizing with iTunes.
• Ability to delete songs from device (by swiping over the corresponding song).
• Tap and hold on a song to view extended song information (iPhone & iPod Touch only).
• Long names scrolling in now playing.
• Album artwork now displays in full resolution (Retina Display only) on Now Playing screen.
• Broadcast song information on devices (e.g. car stereo) when connected over Bluetooth.
• Improved Sound Check for Music.
• “Group by Album Artist” option for Music.
• iTunes Store button has been added to the Music app.
• Removed ability to view lyrics (on iPad).

• Camera

• Volume-up key as shutter release button to take photos (also works using headphone remote volume up button). Also works for starting/stopping recording of videos.
• Shortcut to Camera app from lock screen, accessed by double-clicking the home button (iPhone 3GS & later and iPod Touch 4th Generation only).
• Grid composition aide (3x3).
• Spread to zoom-in, pinch to zoom-out.
• Swipe left to reveal camera roll.
• Tap and hold to lock/unlock Auto Exposure and Auto Focus.
• Options button added, HDR toggle and Grid composition aide toggle.
• New Camera button on Photos app that returns to Camera instead of a "Done" button (was on OS before this) to close the Camera Roll.
• Face detection and video stabilisation. ^P4S

• Maps

• Print maps.
• Alternate routes.

• Calendar

• Can now create, rename, and delete calendars right on the device.
• Tap and hold or double-tap to create a new event.
• Tap and hold in "all-day events" to create a new all-day event.
• Drag appointments to a new time slot.
• Drag handles to change start and end times.
• Creating new Event, now an "Invitees" field; takes to screen for multiple email address entry, emails sent to all invitees once event is saved.
  • Invitee can “Accept”/“Decline”/“Maybe”; reply sent to iCloud servers then reflected for all invitees to see.
  • Calendar event on device lists those invitees accepting event.
  • All users on iOS 5.x devices get notification when event is nearing.
• Ability to specify a time zone to events.
• Ability to add URLs to events.
• Current time on Calendar if in landscape mode.
• Navigate in day view by swiping.
• Event attachments can now be viewed directly in the app.
• Share calendars through iCloud with friends and family. Edits made by subscribers to that calendar are updated and pushed to other subscribers of that calendar (can be disabled by the creator of the calendar and locked so others cannot make edits).
• Japanese or Buddhist calendars support.

• Mail

• Rich text formatting (bold, italics, and underline).
• Indentation control.
• Ability to mark multiple mail items as read.
• Ability to flag emails.
• Draggable mail address in the recipients field.
• Alert if the subject line is blank.
• Search now includes body of messages.
• Delete mails while in Airplane mode.
• Exchange Activesync Email can now be deleted offline.
• Can create new email folders.
• Mail sidebar.
• S/MIME support.
• Ability to show 1000 recent messages; 25 message option removed.
• Ability to create additional @me.com email address within the Mail settings.
• Ability to increase quote level in Mail settings.
• New and updated tiny icons on Mail for Windows Live Mail, Gmail, Exchange, etc.
• Hotmail accounts now have new icons and folders.
• While reading an email you can swipe right to open a list of messages and swipe left to bring back the open email message again.
• If you have multiple email accounts configured in Mail.app, swipe left or right from one’s mailboxes folder list, it will take you to another account’s mailboxes.
• Support for three popular Chinese email services: Tencent’s QQ Mail, and Netease’s 163.com & 126.com mail inboxes.^[75]

• Photos

• Built-in basic photo editing: crop, red-eye, auto-enhance and rotate photos.
• Ability to create and edit local photo albums folders (only those that aren't synced with iTunes).
• Ability to sync pictures taken on one iOS device automatically with other iOS 5 devices using Photo Stream.
• Ability to select all when adding pictures to an album.
• Slight re-design for video time-line under Photos app.

• Safari

• Safari Reader: new "Reader" icon appears in address bar if Safari detects a webpage article, removing need to click-through to each page. Scrollable window sheet appears over current webpage showing all article pages together separated by page breaks, removing ads and page clutter.
• Ability to change font size in reader mode.
• Reading List: a new area of the bookmarks window has been added, purposed for pages you might want to read later. New pages can be added from a new option in the action menu or when long-pressing on a link.
• Items from the Reading List can be synced to iCloud to be pushed to all of your other iOS devices.
• Safari bookmarks can be synced to iCloud.
• Ability to open pages in background or in new page (change in Settings).
• Ability to replace a word with a word from a list of similarly spelled words spellings when typing in a text box on a web page.
• Private Browsing; interface colours change from blue to black (change in Settings).
• Ability to remove custom website data.
• CSS fixed position support.
• Slight fade out at end of long URLs (instead of ellipses) in the address bar.
• Super fast HTML5 draw support.
• Kinetic scrolling within text fields in Safari.

• iCloud

• iTunes, iBooks (books & progress), App Store, Photo, Contacts, Calendar, Notes, Reminders, Mail, Safari (Bookmarks & Reading List), Settings, app data, iWork, and backup data; saved in iCloud to automatically or manually download to all linked devices (iOS & Mac/Windows PCs).
• All iMessages and conversations will be synced between all iOS devices linked under a single Apple ID. You can start a conversation on one device and continue it on another.
• Backup homescreen layout on iCloud.
• Document sync.
• Ability to buy more storage.
• Free upgrade to 256 kbps bit rate for iTunes purchased songs if backing up on iCloud.
• File names in iCloud Storage are case-sensitive.
• Documents/data can now be selected to sync with iCloud account.
• Option to disable iCloud Sync via cellular network to save cost, especially if roaming.

• Game Center

• Photos for Friends.
• Ability to make your Profile public or private.
• Points in Game Center: shows you how many points you have on the home screen of Game Center.
• Sort and view Friends on the basis of Points.
• Friend recommendations.
• Game recommendations.
• Games can be purchased from within Game Center.
• New Friend requests screen.
• Native support for turn based games.

• Settings

• Help Center: learn more about every option under settings app to explore more about it.
• New menu under Location Services called System Services where certain services can be toggled on or off (such as setting the time-zone, location-based iAds, Diagnostics, etc.).
• Hearing Aid Mode.
• Ability to rename your device.
• Ability to set up an AirPort base station or Time Capsule devices.
• Ability to organise Notification Center items "Manually" or "By Time".
• Can select which apps can be included in Notification Center.
• Can select which type of notification will be used for each app: banner notification, classic pop-up style notification, or no notification.
• Ability to turn off app badges.
• On the "Ringtone" and "Text Tone" page, instead of showing "new", they are all in one category now.
• Custom sounds for New Message, New Voicemail, New Mail, Sent Mail and Reminders alerts.
• Ability to purchase text, email, and voicemail alert tones.
• Under "Mail, Contacts, Calendars", on the bottom it shows "Reminders" and gives an option to Sync.
• In the "Messages" section, the "Alerts", "Show Preview", and "Repeat Alert" options have been removed.
• The Usage screen is improved and now shows how much of the memory is consumed by each app.
• Storage usage clean up.
• Backup to iCloud shortcut added.
• Software Update menu added. This allows you to update your device independently without a computer with iTunes installed; the update downloads directly to the iOS device (Requires Wi-Fi or cellular network connectivity). It becomes easier and faster this way.
• Photo Stream settings.
• New purchases Settings; automatically download new purchases made on other devices (for music, apps, and books). This can also be enabled or disabled for use on cellular when not connected to Wi-Fi.
• Twitter sign-in OS-wide with support for multiple Twitter accounts.
• Ability to set left or right for mono audio.
• Ability to turn on/off sending of iOS diagnostic data to Apple.

• Keyboard

• Ability to create keyboard shortcuts to replace custom phrases. By default includes “omw” which expands to “On my way!”.
• Emoji keyboard no longer requires an app to enable it (regarding non-Japanese devices).
• Define your own words in Offline Dictionary.
• New keyboard with prominent # (hash-tag) and @ (mention) buttons for Twitter app similar to the ".com" button when entering an address into the Safari address bar.
• New Chinese-Pinyin keyboard spreading.
• Quick Chinese input method.
• List of associated words show on the top of Chinese input keyboard.
• Function to convert voice to text ^P4S

• PC-Free

• iTunes/USB no longer needed to activate new devices via a computer.
• New welcome screen when using the device for the first time (or after resetting a device).
• Ability to start fresh with no need to tether it to iTunes. Option to restore all data on a device from an iCloud backup through a simple iCloud sign in.
• Ability to wirelessly sync to iTunes over Wi-Fi added (an initial tethered sync is needed to pair them together and the setting must be enabled in iTunes).
• OTA delta updates: from iOS 5 forward, devices can now self-update the system software right on the device itself through Wi-Fi or 3G; no iTunes or computer needed.

• YouTube

• Ability to play 480p/720p videos over 3G (iPhone only).^[76]
• Scrolling titles for YouTube videos.
• Seek bar fine scrubbing visual notification has been added.

• FaceTime

• Improved video quality.
• Ability to set your FaceTime caller-ID to be your email or your phone number.
• Ability to mirror the FaceTime call on large screen.^[77]

• iTunes/App Store

• iTunes Tone Store.
• New Purchased History section.
• Genius support for finding songs and apps similar to ones users have purchased previously.
• Ability to completely disable in-app purchases.
• iTunes password prompt.
• Restrictions with password needed for purchases if enabled.
• Shows "Install" instead of the price for previously purchased apps. Shows "Installed" for installed apps.
• Additional “iForgot” button on App Store if a user has forgotten their Apple ID password.
• Simultaneous app downloads.
• Custom tones for almost everything under "Sounds" with "Buy more tones" button.
• Music app now has a "Store" button that goes to the iTunes Store.

• Contacts

• Add family relations ("related names") to contacts.
• Add social media info into contacts.

• VoiceOver

• VoiceOver item chooser.
• VoiceOver action support.
• Arabic language support for VoiceOver.
• Option to speak text selection.
• New voices for VoiceOver.

• Bluetooth

• AVRCP 1.4 supported (sends track and artist info to supported devices).

• Minor improvements/bug fixes

• New rounded UI switch graphic.
• Ability to use the device while syncing.
• Spotlight search now includes Reminders and searches through Messages.
• Built-in system-wide dictionary; in the typical Cut/Copy/Paste pop-up when selecting text, there is a new option to "Define". Define brings up a view with definition of the selected word.
• Ability to delete app data.
• Fixed a bug that caused a song to crash for a second while switching to another application in the multitasking tray.
• Apps fade to home screen when they crash, rather than flicking off.
• Option to automatically set the time (new for Wi-Fi only devices).
• Switching the ringer switch to "on", the indicator now shows the volume level bar (iPhone & iPad only).
• Screenshots are saved using the device's orientation (previously, all screenshots were saved as if the device was in portrait mode).
• Hindi virtual keyboard based on standard InScript layout.

iPhone & iPod Touch only

• Notification Center

• Option to display Stock & Weather widgets in Notification Center. Swipe weather left or right to get five-day forecast.

• Calendar

• Week view in landscape orientation.

• Clock

• Ability to pause Timer.
• Tbilisi, Georgia added to World Clock.

• Weather

• Weather for user's current location.^[76]
• Hourly updated weather of 5 day forecasts.

• Stocks

• Real-time stock updates.

iPhone only

• Siri voice control. ^P4S Classed as beta software during whole of iOS 5.x.

• Voice commands are now executable for different users on device.
• Device can now translate voice into text and vice versa.
• Available in English (UK, US, and Australia), French, and German.

• Phone

• Enable/disable option for voice-dial if the device is set to security with passcode lock.
• Delete individual calls in "Recents" Phone app. Clear button is now Edit button.
• Make FaceTime calls without a micro-SIM card.
• "Unsecured Calls" warning lets users know if they are talking on unencrypted networks.
• Shows city name or area/county in addition to number for unknown calls.
• Time-mid call invitation alerts.

• Messages

• Option to have iMessages sent as SMS when iMessage is unavailable (enable in Settings).
• Placeholder text indicates whether sending "iMessage" or "Text Message" (i.e. SMS/MMS message) in Messages.
• SMS/MMS bubbles are green in colour, iMessage bubbles are baby blue.

• General

• Customised vibrate alert patterns (can be set per-contact).
• LED flash alerts. ^P4,P4S
• Assistive touch gestures.

iPod Touch only

• New "Message" option to use iMessage using an email ID, in Settings (for iPod Touch).

iPad only

• Keyboard

• Split keyboard: swipe up or pull apart to split keyboard in half.
• Undock keyboard option: keyboard can now be moved up and down the screen.

• Mail

• Swipe right to reveal Inbox when in portrait orientation.

• Calendar

• Swipe left and right to change months.
• Year view with heat map colours to show busy/free status.

• Safari

• Tabbed browsing.
• Tapping and holding the back or forward buttons in Safari will show recently visited website history.
• Tapping and holding the new tab button will show a list of recently closed tabs.

• Music

• All-new user interface.
• Quickly skip to previous or next track by swiping left or right (respectively) on album art when in the Now Playing screen in the Music app.

• Picture frame

• Ability to pick an event.

• Multitasking gestures with 4 or 5 fingers: (iPad 2 only until iOS 5.0.1)

• Pinch to return to the Home screen.
• Swipe up to open multitasking tray.
• Swipe left or right to move between open apps.

• AirPlay mirroring

• Ability to connect with AirPlay to an Apple TV; whatever is displayed on an iOS devices screen is mirrored on the TV.^P4S,S2

• Videos

• Ability to play 1080p content.

9A406 ^P4S

3.00.03 ^{P4C S2D}
05.16.05 ^P3
07.11.01 ^S1C
1.0.14 ^P4S (Build 9A406)

December 12, 2011 (9A406)

Bug fixes, security update

• Attempted to fix battery drain bug.
• Fixes bugs affecting iCloud mail push.
• Adds Multitasking Gestures (for original iPad).
• Resolves bugs with Documents in the Cloud.
• Improves voice recognition for Australian users using dictation.
• Contains security improvements.
• Activates the LED camera flash, whether the speaker is muted or not, for incoming calls and messages, when activated within the Accessibility sub-menu.
• Introduces a new way for developers to specify files that should not be backed up.

iPhone 4S only (Build 9A406)

• Attempts to fix "Invalid Sim" and "No SIM card installed" issues.
• Baseband update.

9B179 ^P4S

07.11.01 ^S1C 04.12.01 ^{P4 S2C} 3.0.04 ^P4C
1.0.10 ^{S3L S3D} 2.0.10 ^P4S

• Initial release on iPad (3rd generation).

• App Store

• App Store download limit over 3G increased from 20 to 50 MB.

• Clock

• "Sleep iPod" function in clock application changed to "Stop Playing", this function also works for applications other than Music.

• Camera

• Redesigned Camera app (for iPad). ^{S2 S2C S2D S3 S3L S3D}
• Camera shortcut on lock screen now always present, and has a new slide-up gesture to activate (iPhone & iPod Touch only). ^{P3 P4 P4C P4S T4}
• Face detection and video stabilisation ^P4S,S3.
• Camera face detection now highlights all detected faces ^P4S,S3.

• General

• License column added under the About menu.
• Improved Location Services.

• Maps

• Minor UI changes in Maps.

• Music

• Fixed slowdown when changing to landscape (Cover Flow) in Music app.
• Shake-to-shuffle bug fix, which previously caused the Music app to freeze.
• Smart playlists bug fix.
• Genius Mixes and Genius playlists for iTunes Match subscribers.
• Podcast controls for playback speed and a 30 second rewind (iPad).

• Network

• Baseband updates for some devices.
• Carrier updates (e.g. AT&T 12.0, Verizon 12.0).
• 4G icon shown when on AT&T's HSPA+ network ^P4S.
• Fixes iPhone 4S support for Caller ID Name Display (on supported carriers – e.g. Rogers & Fido in Canada).
• Restores the 3G switch ^P4S.

• Phone

• Combined Voice/Data Roaming Switch (on iPhone).

• Photos

• Photos can now be deleted from Photo Stream.

• Safari

• Safari address bar now has "Go to this address" instead of a blank bar.
• Bookmarks list no longer automatically displayed on browser opening if there are no open pages in Safari.

• Security Updates

• A string format exploit in an application named racoon that allowed executing unsigned code at boot-up is fixed.
• An ROP exploit that allowed executing payloads vnimage is now fixed.
• A flaw that was executed by mounting a maliciously crafted disk image and may lead to a device shutdown or arbitrary code execution is now fixed.
• A logic issue with debug system calls that could bypass sandbox restrictions is fixed.
• WebKit security updates.
• A format string vulnerability existed in the handling of racoon configuration files (VPN) is now fixed.
• CFNetwork security updates.

• Siri

• Enhanced Siri dictation support during text input "on supported devices" (iPhone 4S in 2011, iPad (3rd generation) in 2012).^[79]
• Japanese language support for Siri (availability may be limited during initial rollout).

• Video

• Audio for TV shows and movies optimised to sound louder and clearer (on iPad).

• Other

• Setup Assistant bug fix.
• Attempts at fixing battery life; results are mixed.^[80][81]
• Bluetooth status bar indicator bug fix.
• Improved Assistive Touch.
• Fixed bug that allowed nested folders (folders within folders), including Newsstand.
• Fixed bug that caused stuck keys on Apple Bluetooth Keyboards during wakeup from low power states.
• Redesigned fonts for a few non-Latin languages.

9B208 ^P4

07.11.01 ^S1C 04.12.01 ^{P4 S2C} 3.0.04 ^P4C
1.0.11 ^{S3L S3D} 2.0.12 ^P4S

May 25, 2012 (2012-05-25)

Final release supported on iPad (1st generation), and iPod Touch (3rd generation)

Bug fixes, security update

• Fixes battery drain bug.
• Improves reliability of using HDR option for photos taken using the Lock Screen shortcut.
• Addresses bugs that could prevent switching between 2G and 3G networks ^{S3L S3D}.
• Fixes bugs that affected AirPlay video playback in some circumstances.
• Improved reliability for syncing Safari bookmarks and Reading List.
• Fixes an issue where "Unable to purchase" alert could be displayed after successful purchase.
• Added a decline button to calls.
• Podcast playback position now synced between iOS devices (presumably via iCloud).

1.00.16 ^P5
3.0.04 ^{P4S P4C S2D}
2.0.02 ^{S3D S3L} 04.12.02 ^{P4 S2C}

September 19, 2012 (2012-09-19)

• Initial release on iPhone 5, iPod Touch (5th generation), iPad (4th generation) and iPad Mini (1st generation).
• Limited support on iPhone 3GS and iPod Touch (4th generation).

Not all features available across devices.^[84]

• Siri^{P4S,P5,T5,S3,S4,M1}

• Siri now available on iPad (3rd, 4th generation and Mini) and iPod Touch (5th generation).
• Additional country and language support for Canada (English and Canadian French), China (Mandarin), Hong Kong (Cantonese), Italy (Italian), Korea (Korean), Mexico (Spanish), Spain (Spanish), Switzerland (Italian, French, German), Taiwan (Mandarin), US (Spanish).
• Local search works around the world.
• Siri can now provide information on sports leagues such as NFL, MLB, NBA, NHL, WNBA, NCAA basketball and American football, the Premier League, MLS, and more. Ask for player stats, team rosters, game schedules and team standings.
• Siri can provide information on movies like find movie reviews, ask about actors and actresses, play a movie trailer, get showtimes for movies and find a theater/cinema.
• Yelp! built-in reviews and launch to open up more information and create reservations with OpenTable.
• Restaurants are listed by reviews and nearest with more information.
• Apps can be launched by saying "run <app name>" or "open <app name>".
• Siri can send Tweets and update Facebook status.
• Siri can read items from Notification Center.
• "Eyes Free", allowing car companies to build-in Siri integration; with a mic button on steering wheel, and for launching Siri functions, and screen disabling during Eyes Free mode.

• Facebook integration

• Share to Facebook from Share button and apps can access Facebook accounts; similar to Twitter integration in iOS 5.
• Integrated into Notification Center.
• Integrated in Siri and APIs for third-party apps.
• Contacts synced from friends' contact information on Facebook.
• Facebook Events and birthdays in Calendar.
• "Like" button on apps and content from the App Store and iTunes Store.

• Twitter

• Icon matches Twitter's new logo.

• Passbook (iPhone and iPod Touch only)

• New app that manages a user's boarding passes, movie tickets, retail coupons, loyalty cards, etc. in one app.^[85]
• Store coupons and gift cards in a wallet-like app (e.g. Apple Store, Starbucks, Target, etc.).
• Passes are updated in real time if changes are made (e.g. spending money on a store card, flight time, gate change, etc.).
• Passes are location and time-based, appearing on the lock screen when relevant.

• Notification Center

• Update Facebook status or Tweet from new widget.
• Message previews can now be toggled on/off for alerts.
• Calendar now shows the current date in the title bar.
• Shows ending times for Calendar events.
• Added "Do Not Disturb" for Notifications. (See Settings, below, for more information)

• Photos

• Shared Photo Streams. Photos can be shared with other contacts. Photos shared can be commented on and liked. Notifications are enabled for when a contact shares a photo with the user.
• New sharing menu, using new icons.
• Constantly shows a button to create new Albums.
• Sharing menu has options for Twitter, Facebook, Weibo (when Chinese keyboard is enabled), as well as Copy, Slideshow, AirPlay, Use as Wallpaper, & Print.
• Videos can be uploaded to Youku and Tudou when the Chinese keyboard is enabled.

• Music

• New streamlined UI with white and black themes.
• Late Night Mode equaliser.
• Redesigned rewind, play/pause, and fast forward controls (videos kept the same touch controls from previous iOS software.)

• Settings

• "Bluetooth" moved to top of Settings list.
• Added "Do Not Disturb" mode, allowing users to avoid calls and notifications unless calling parties are on the user's Favorites group. A crescent moon icon will appear in the status bar when enabled. Has no effect when the screen is on.
• Added in Notifications: Government warnings and AMBER Alerts (toggle on/off).
• New Privacy Controls. Apps must now ask for permission to access the users photos, calendars, contacts and reminders.
• Revised Settings icon, similar to that of the OS X System Preferences app icon.
• New gear animation in the Settings app shown whilst downloading an over-the-air update.
• In the Usage menu, Time Since Last Full Charge, showing "Usage" and "Standby" time, is now available for all devices.
• Enable 3G under Cellular setting (iPhone).
• Maps menu for changing voice volume, map label language, label size, and distance units (iPhone 4S and later, iPad 2 and later, & iPod Touch (5th generation)).
• Settings categories now separated into groups on iPad.
• "Advertising" option added under "About", just above "Diagnostics & Usage" to enable or disable advertising networks from serving you "targeted ads".

• Phone

• Adds phone icon on lock screen for showing additional ignoring options, similar to the camera sliding icon on the lock screen in iOS 5.1.
• When ignoring a call, the user can message the caller by sending one of three customizable quick SMS responses or set a Reminder to call them back later.
• Phone call doesn't take up the entire lock screen when a call is incoming. (QuietIncomingCallsonLock)
• New white themed UI for dial pad.

• Maps

• Maps are now Apple-sourced instead of using Google sources.
• Turn-by-turn Navigation with Siri Voice powered by TomTom (iPhone 4S and later, iPad 2 and later, & iPod Touch (5th generation)), voice directions (iPhone 4S and later only).
• 3D overview for maps (iPhone 4S and later, iPad 2 and later, & iPod Touch (5th generation)).
• Satellite view.
• Flyover view for maps gives 3D satellite view.^{P4S,P5,T5,S2,S2}
• New Map icon.
• Lock Screen integration for turn-by-turn navigation (iPhone 4S and later, & iPad 2 and later), voice directions (iPhone 4S and later only).
• Yelp! integration available for businesses provides reviews and information on the business. Allows the user to launch Yelp! app from Maps.
• Info cards of businesses.
• Traffic crowd sourcing with anonymous data sent from all iPhones, also adds events of traffic slow-down. Re-routing around traffic accidents and road work.
• Tapping search bar will automatically give you directions from current location to back home, can be changed.

• FaceTime

• Make FaceTime calls over cellular (some carriers require certain data plans, like AT&T).^P4S,P5,S3

• Mail

• VIP inbox stars important emails from user defined VIP group members.
• Flagged emails inbox.
• Attach photos and videos quickly with a long-press.
• Open password-protected Microsoft Office documents.
• Added Pull-to-Refresh gesture to update Mail accounts.
• Per account Signatures.
• Holding the Compose button now shows a list of all draft messages, rather than just the most recent draft message.
• Email addressed used can now be removed from the Recent list

• Contacts

• Search All Fields.
• Custom Vibrations for Text Message Notifications.

• Reminders

• Manual Reader.
• Manual location based reminders.
• Location based reminders (iPad (3rd generation); previously only available for iPhone 4 & iPhone 4S) (option removed in Golden Master).

• Safari

• Fullscreen landscape mode (for iPhone and iPod Touch).
• iCloud tab syncing across iOS devices and Macs.
• Offline Reading List caches the user's Reading List for later use, even when not connected to the Internet (not available for iPhone 3GS and iPod Touch (4th generation)).
• Smart App Banners: Banners on mobile webpages prompt users to download the website's native App Store counterpart in the App Store.
• Faster JavaScript engine.
• Apps in search results.
• Support for photo upload via Camera Roll to web forms with <input type="file"> elements.
• Support for up to 24 open tabs on iPad (up from previous limit of 9).
• Bookmarks window now displays tabs along the bottom of the window for switching between viewing "Bookmarks", "History" and "Reading List"; previously was just listed all in one source list (iPad 2 and later only).
• Bookmarks button changes to Reading List icon with a progress bar when updating the Reading List for offline use (iPad 2 and later only).
• Long press the "Back" or "Forward" button to reveal the browsing history (for iPhone 3GS and later, iPod Touch (4th generation) and later. Previously only available for iPad since iOS 5.x).

• App Store

• New UI.
• Darker theme.
• Applications can be purchased from within apps.
• Installing an app no longer returns the user to the home screen; apps will download and install while continuing to browse the store.
• Updating an app no longer requires the iTunes password to be entered.
• Tap the screenshots of app to enter Full Screen mode.
• Already installed apps now show an "Open" button that can be tapped to open the respective app, as can tapping the app's icon.
• Developer page on the bottom of app details screen (now available for iPhone and iPod Touch; previously only available for iPad).
• Update History on the bottom of app details screen.
• Related item on the middle of app details screen.
• Share sheet button on the right top of app details screen.

• iTunes

• New UI.
• Darker theme.
• Content can be purchased from within apps (previously available since iOS 5.0).

• Accessibility

Guided Access

• Allows user to lock exiting of the app in Single App Mode.
• Allows users to disable certain controls within a specific app.
• Locks the home button from being used, so as to function like a kiosk.

Speak Selection

• Allows selected text to be read using the same Text-to-Speech that powers VoiceOver.
• Allows speech rate and dialect to be changed and words to be highlighted as they are read.
• When in use, infers language from context, and when no context is available, offers a choice. Pause/resume is available.

• iCloud

• Personal Dictionary synchronisation.
• Passbook synchronisation.

• Clock

• Set a song as an alarm sound.
• Clock app for iPad.

• Weather

• New UI.

• Stocks

• Historical data can be viewed for the past 5 and 10 years when in landscape mode.

• YouTube

• Apple's integrated app removed, due to an ended licensing deal with Google.

• Game Center

• Game Center challenges.
• Facebook friends integration.
• Opportunity to delete games without deleting the apps from a device.

• Camera

• HDR improvements.
• Darker theme (iPhone & iPod Touch only).
• Panorama Mode (iPhone 4S and later, & iPod Touch (5th generation) only).
• Ability to take pictures while recording video (iPhone 5, & iPod Touch (5th generation) only).
• Face detection is now on the iPad 2.

• Calendar

• Add Facebook events and friends' birthdays into Calendar.

• Security

• Kernel ASLR added.

• Other

• Lost Mode: If an iOS device is lost, Lost Mode triggers an attention grabbing sound, prompting the person who finds the iPhone to call a specific number set by the owner remotely.
• Additional features for China (Baidu search engine added, China social network, improved inputting method).
• Weibo Integrated (when Chinese Keyboard enabled).
• VoiceOver improvements.
• Custom Vibrations for Alerts.
• Global Network proxy for HTTP.
• IPv6 support for Wi-Fi and LTE.
• New Sharing menu using new icons across all stock apps.
• Auto Correction for every keyboard.
• Bluetooth MAP support.
• Improved keyboard layouts.
• New Thai keyboard (full keyboard).
• French, German, and Spanish dictionaries. (Download necessary at time of first use)
• "Made For iPhone" specification for hearing aids.
• A blue "New" ribbon over newly installed apps.
• Status bar reflects the color of the top-most banner in 3rd party apps. (iPhone and iPod Touch only)
• Spotlight lists name of folder an app is located in.
• Setup for iMessage & FaceTime added to initial device first time setup.
• Folders now let you store up to 16 apps (iPhone 5 and iPod Touch (5th generation)).

10A525 ^P5

1.01.00 ^P5
3.0.04 ^{P4S S2D P4C}
2.03.09 ^{S4D S4L}
2.0.02 ^{S3D S3L}
04.12.02 ^{P4 S2C}

Bug fixes, security update

• Fixes a bug that prevents iPhone 5 from installing software updates wirelessly over the air.
• Fixes a bug where horizontal lines may be displayed across the keyboard.
• Fixes an issue that could cause camera flash to not go off.
• Improves reliability of iPhone 5 and iPod Touch (5th generation) when connected to encrypted WPA2 Wi-Fi networks.
• Resolves an issue that prevents iPhone from using the cellular network in some instances.
• Consolidated the Use Cellular Data switch for iTunes Match.
• Fixes a Passcode Lock bug which sometimes allowed access to Passbook pass details from lock screen.
• Fixes a bug affecting Exchange meetings.
• Adds Finger-Rejection.^[86]

iPhone 5 and iPad Mini only
Bug fix

• Fixes a bug that could impact Wi-Fi.

3.04.25 ^P5
3.4.01 ^P4S
2.0.02 ^S3D
2.3.03 ^S3L
3.04.24 ^{S4D S4L}
3.0.04 ^{P4C S2D}
04.12.05 ^{P4 S2C}

January 28, 2013 (2013-01-28)

• Larger "Report a Problem" button in Maps.
• New music controls on lock screen when you double-press home button.
• Siri can now purchase movie tickets via Fandango (USA only).
• LTE now works with several European, African, Asian and American carriers.
• Individual songs can once again be downloaded or deleted when using iTunes Match.
• An empty Passbook will automatically add a sample pass explaining passbook functionality. The pass text changes slightly for users in British English speaking countries, changing “movie tickets” to “cinema tickets” in the first sentence, and “theaters” to “cinemas” in the last sentence.
• Reset Advertising Identifier button now works.
• New cellular data option for iTunes (it is available from iOS 6.0).
• When setting up an iOS device for the first time with iCloud, it will now ask you to confirm your Apple ID password for FaceTime and iMessages. It will also ask you to confirm how you'd like people to reach you, and tells you that you can change these settings at any time later on.
• Fixed an iPhone 5 bug that prevented the phone from reconnecting to the cellular network when it lost connection for an extended amount of time.
• "Accessory attached" splashscreen removed. Bi-directional control now possible.
• Fixed a Bluetooth A2DP trigger delay - the beginning of the audio stream cut off (e.g. when navigating turn-by-turn, you heard "HT in .5 miles" instead of "TURN RIGHT in .5 miles" in your A2DP headset/speakers)^[87]
• Security fixes.

iPhone 4S only
Bug fix

• Fixes an issue that could impact cellular performance and reliability.

3.4.02 ^P4S 04.12.05 ^{P4 S2C} 3.04.25 ^{P5 S4D S4L}
2.3.03 ^{S3L S3D}

Bug fix

• Fixes an Exchange calendar bug that could result in increased network activity and reduced battery life.

3.4.03 ^P4S 04.12.05 ^{P4 S2C} 3.04.25 ^{P5 S4D S4L}
2.3.04 ^{S3L S3D}

Initial operating system that iPhone 3GS ended with

Bug fixes

• Fixes a bug that could allow someone to bypass the passcode and access the Phone app.
• Improvements to Maps in Japan, Turkey, Germany and Poland
• Security fixes.
• Fixes Facebook App
• Patches exploits used by original evasi0n jailbreak, but is jailbreakable via the p0sixspwn jailbreak.

iPhone 5 only
Bug fix

• Updates the audio profile for speakerphone.^[89][90]

iPod Touch (4th generation) only
Initial operating system that iPod touch (4th generation) ended with

Bug fix

• Fixes an issue that causes FaceTime calls to fail for some users on the iPod Touch (4th generation).

iPhone 3GS and iPod Touch (4th generation) only

Final release supported on iPhone 3GS, and iPod Touch (4th generation)

• Fix CVE-2014-1266, a bug in Secure Transport that can cause it to fail to properly authenticate a SSL/TLS connection. This bug also occurred in iOS 7, and was caused by a duplicate goto fail; statement in the source code that caused critical parts of the certificate verification code to become unreachable code. This bug is informally known as the goto fail bug as a result.

11A466

3.0.04 ^{P4C S2D}
5.0.00 ^P4S
4.0.01 ^{S3D S3L}
5.00.01 ^{P5 S4L S4D M1C}
1.00.06 ^{P5C P5S S5L S5D M2C}

• Initial release on iPhone 5C, iPhone 5S, iPad Air, and iPad mini 2.
• Limited support on iPhone 4.
• UI

• Flat design and move away from skeuomorphism in general (exceptions exist - for a move towards more skeuomorphism, see for example the Countdown with a new skeuomorphic 3D animation of a spinning wheel).
• System Helvetica Neue Regular font.
• Full Screen apps that make use of the system status bar and navigation bar.
• Translucent design in tab bar, navigation bar, status bar, system keyboard, Control Center, and Notification Center (some translucent layers not on the iPhone 4, the iPad 2 and the iPad 3 due to hardware constraints.
• Opaque design in Alert view, Action Sheet and Share Sheet.
• Borderless buttons in general.
• Back navigation gesture by swiping from left edge of the screen.
• New UI for arranging tab-bar icons.
• System-wide dynamic font size, configurable in Settings.
• Enhance the viewing experience of non-iPad apps on iPad 2 and iPad mini, remove the 1x and 2x toggle, apps are opened in ’2x’ mode by default on iPad 2 and mini.

• Home Screen

• Spotlight Search is now accessible on each screen by pulling it down.
• "New" banner on newly installed apps have been replaced with blue dots.
• Brand new icons for built-in apps.
• Newsstand is now a dedicated app instead of a folder.

• Control Center

• A unified screen to quickly access toggles and controls for system settings and services, and for using AirDrop and AirPlay.
• System wide, accessible by swiping upward from the bottom of the screen.
• Accessible in the lock screen.
• Flashlight (device-specific features that come with physical camera) toggle button.
• Landscape support.
• A grabber in full screen apps.
• Mute/silent toggle button in iPad.

• AirDrop ^{P5, P5C, P5S, T5, S4, M1}

• Integrates Apple's ad-hoc Wi-Fi sharing feature AirDrop (iPhone 5 and later, iPod Touch (5th generation) and later, iPad (4th generation) and later, and iPad Mini (1st generation) and later).
• Alert view, for receive invitation from other devices, option to accept/cancel.
• Options to set discoverable: Off/Contacts only/Everyone.

• Inter-app Audio

• Register audio streams to share with other apps.
• Provides for MIDI control of audio rendering, remotely launching other registered Inter-App Audio apps.

• Notification Center

• Accessible in the lock screen.
• Today tab, for previewing the events calendar, stocks, and tomorrows events; provides traffic info on frequently visited places.
• Missed filter: can filter list to see notifications that occurred when phone was not actively in use.
• Bounces when swiped down quickly.

• Folders

• Unlimited number of apps via folder subpages.
• Newsstand app can now be moved inside any folder.
• Transparent background.
• Folders change color when apps are downloading and clock-like animated progress graphic is superimposed over folders that have actively downloading apps.

• Alert

• A countdown for snooze.

• Calculator

• New feedback when pressing a key.
• Toggle landscape mode button.

• Spotlight

• Accessible on every page of the Home screen by swiping downward from anywhere.
• New animation.

• Multitasking

• Redesigned switcher, with horizontal scrolling for previewing all running apps, and swipe upward gesture to stop any running apps.
• Can close multiple apps simultaneously by swiping with multiple fingers.
• Landscape switcher.
• Background App Refresh; fetches data in the background based on network connectivity and user habits.
• Use apps while the app is updating.

• Wallpapers

• New wallpapers.
• Dynamic wallpapers.^{P4S, P5, P5C, P5S, T5, S2, S3, S4, M1}
• Gyroscope-responsive parallax wallpaper effect, based on user's movement.^{P4S, P5, P5C, P5S, T5, S2, S3, S4, M1}

• Weather

• Dynamic animation for different weathers (iPhone 4S and later and iPod Touch (5th generation)).^{P4S, P5, P5C, P5S, T5}
• Shows sunrise/sunset humidity, chance of precipitation, and wind speed.
• Can see multiple locations simultaneously when the menu icon is selected.
• Can select GPS icon at bottom to immediately see weather for current location.

• Phone

• Block list.
• Contact pictures on Favorites.
• Transparency in the number pad button when pressing.
• Phone History and Voicemail Info options allow one to return the call in multiple ways including call back, FaceTime and Messaging.

• Contacts

• New fields in Contacts: "Add Social Profile", and "Add Instant Message".
• "Chat", "FaceTime", "Mail" buttons next to the contact information; no longer need to scroll down to the bottom.
• Send contacts through AirDrop.

• FaceTime

• FaceTime Audio.
• Block list.
• A dedicated app on the iPhone, like the previous version on iPod Touch and iPad.

• Messages

• Long SMS.
• Block list.
• No longer have to scroll to the top to access "Call", "FaceTime", and "Info".
• Contact pictures in group chats.
• Ability to see exact time of when each message was sent by dragging conversation bubbles to the left.
• Event and address detection in the message context, tap to open in Calendar and Maps.
• A contact with a nickname will appear in Messages under the nickname, rather than the full name.
• New animation when compressing video to be shared.

• Safari

• Full screen browsing in portrait mode (previously only available in landscape).
• Unified text field for both URL and search.
• Bookmarked website thumbnail icons appear when text field is activated.
• Top-hit, Google suggest, Bookmarks, and History appear on the unified text field while typing.
• Preview tabs on iPhone and iPod Touch are no longer limited to 8.
• Preview tabs use new 3D vertical animation for previewing the opened tabs; long press to edit positions, swipe to remove.
• Reading List shows website thumbnails on the right.
• Scrolls articles one-by-one vertically from Reading List, as per OS X Mavericks.
• Swipe gestures for back/previous history, as per OS X.
• Parental controls.
• Private button: enables "Do not track me" feature per website within the app. Previously, configuration appeared in Settings for every website.
• Recent links: a reading list of all user's friends on Facebook or Twitter post.
• Reading List button: new round glasses icon pays tribute to Steve Jobs.
• The .com button removed and replaced with a simple period button. The .com, .net, and .org domain extensions can be accessed by holding down on the button.
• Bookmarks/Reading List/Shared Links tabs re-ordered/slightly tweaked.
• Bolder loading bar, private browsing UI tweaks and tab/bookmark changes on the iPad .

• iCloud

• Photo Stream video support, and more than one contributor per photo stream.
• Notification Sync across different iCloud devices.

• Maps

• Automatic Day/Night Mode that responds to ambient light and current time to switch between day and night color schemes.
• Turn-by-turn walking directions, with estimated time.
• Maps bookmarks syncing.
• Receives notification data sent from the new Maps app in OS X Mavericks (version 10.9).
• A live compass at the right top corner.

• Clock

• App icon reflects the live time.
• Timer shows in the lock screen.
• City shows how many hours ahead/behind from your current location.

• Music

• New iTunes Radio service.
• Scrub along the song to get to a certain part directly from the lock screen.
• Download full albums from iCloud from iTunes Match.
• Tapping a song in the Now-Playing screen allows users to rate.
• Cover Flow: Instead of swiping though individual albums, one can now swipe through multiple albums.
• Reintroduced on-screen lyrics for iPads (this feature was absent in iOS 5 and iOS 6).

• iTunes Radio

• Slider/discovery feature.

• App Store

• Automatic app updates: switch to enable/disable in Settings, under iTunes, App Store.
• New catalogues for kids based on their age.
• Genius tab replaced with "Apps Near Me" tab for app recommendations based on user's location.
• Volume purchase.
• Search tab redesigned, the number of results appears on the right of the search field.
• Circular download progress animation during downloading/updating in Home Screen.
• Add to wish list.
• It is now possible to download older versions of apps (the last compatible version supported by the device legacy firmware).

• iTunes

• Smart download of TV episodes.

• Photos

• Albums are organized by Places, Moments, and Years, using the EXIF data as the base of the collection.
• Share Sheet shares photos to iCloud, social networks, and AirDrop (if available).
• New default album "Panorama Photos".

• Camera

• Control redesign: swipe horizontally to select the still images, videos, square photos, and Panorama modes (if available).
• Live image filters. ^{P4S, P5, P5C, P5S, T5}
• SDK for 60 FPS video recording.
• Pinch to zoom while video recording.
• Redeem iTunes gift card using front camera.
• Panorama reduces when battery is low.
• Slow motion video recording at 120 frames per second.^P5S
• Burst mode. ^{P5, P5C, P5S}
• High-dynamic-range imaging (HDR) for iPad.

• Calendar

• New layout for Calendar list view on the iPhone.
• Years view.
• Week view.
• Integration with Mail.
• Integration with Maps, users are notified with transit information when entering places information.
• Can now hide or show declined events.
• Will support custom calendar colors.
• All Day toggle on the Add Event Screen instead of buried in the Select Time control.
• Can snooze or View Event when an Event Reminder appears.
• Can set up a second alert time for an event.
• Can change Busy/Free Status.
• Selecting the name of the calendar month shows the monthly calendar.

• Game Center

• Secure game scores.
• Authenticated players.
• Turn-based game modes.
• Ranking-style leader boards.

• Compass

• Inclinometer.

• Mail

• View PDF annotation.
• New smart mailboxes.
• Improved Mail search.
• Hotmail is now Outlook when adding an account, using new Outlook icon.
• Flagged, Unread, To or CC, Attachments, All drafts, All sent, All Trash smart mailboxes.
• Shake to Undo to un-archive something.
• When emailing a passbook pass, it appears as a pass.
• New animation when compressing video to be shared.
• New animation when moving mail into a folder.
• When selecting a target folder while moving an email, an iconic image of the email above the folder selector appears.
• Have the ability to move an email to Junk folder when flagging.
• New Print option available when Reply option is selected.

• Notes

• New design, mostly white.
• No longer change fonts in Notes.
• Can AirDrop notes.

• Settings

• Per app cellular data usage permission.
• Per app using microphone privacy permission.
• Per app using camera privacy permission.
• Password required to reset networking and contents.

• Accessibility

• Head movement detection for different gestures.

• China features

• Tencent Weibo social network integration.
• Chinese-English bilingual dictionary.
• Improved Chinese input including T9 keyboard for pinyin (Added in Beta 4), and handwriting recognition for multiple Chinese characters.

• Siri ^{P4S P5 P5C P5S T5 S3 S4 M1}

• Updated voices, and a new male voice (in select regions/languages). English (US), French, and German will be available with the launch of iOS 7 (additional languages will be added over time).
• Controls certain system settings, such as turning on/off Bluetooth, and changing display brightness.
• Search from Wikipedia and Bing search engines.
• Post to Sina Weibo.
• Search tweets on Twitter.
• Option to open MLB scores in the MLB.com At Bat app.
• Navigation, access and voice are more natural.

• Reminders

• Geofencing.
• Ability to create repeating reminders has been removed.

• Passbook

• Scan and recognize barcodes/QR codes.
• Add gift cards as a folder.

• Find My iPhone

• Activation Lock: re-activation with iCloud account if the device have been wiped remotely using Find My iPhone service, to prevent unauthorized usage of the lost device.
• Password required to disable.

• Enterprise

• Enterprise single sign-on.
• Per app VPN.
• Managed app config, for more efficiently deploying and managing of iPhones and iPads.

• Accessories

• Unauthorized Lightning cables are blocked and can no longer be used.^[92]
• Set up and configure Wi-Fi accessories, such as AirPlay speakers.
• iBeacons, a new class of Bluetooth LE low-powered, low-cost transmitters that can notify devices of other nearby devices/services.
• Bluetooth LE profiles; including time, notifications, keyboards, and stereo sound.
• MFi game controllers.

• Screenshot

• No longer included in the AssistiveTouch, they appear on the layer of the image.

• Trusted Devices

• User is warned when plugging their iOS device into their Mac/PC, "Trust the currently connected computer? Trusting this computer will allow it to have full access to your device and all of its data."

• Voice Memo

• New design.
• Save to iCloud.
• Share using AirDrop.

• Status bar

• Translucent design.
• 1xRTT icon on CDMA iPhones changed from "o" icon to "1x" icon.
• GPRS icon on GSM iPhones changed from "o" icon to "GPRS" icon.
• Dots representations for cellular signal strength.
• Icon size slightly increased for better readability on the lock screen.

• Lock screen

• Charging the battery: rather than battery image on the lock screen, x% charged briefly appears under the clock, then reverts to the date.
• Access to Notification Center and Control Center.
• When playing music, the lock screen will now display the time.
• iPad has Camera control on the lock screen, like the previous version on iPhone and iPod touch.
• Timer counting down is shown when the device is locked.
• Scrubbing bar is now displayed on the lock screen.

• Wi-Fi

• New Wi-Fi diagnostics mode.
• Wi-Fi Hotspot 2.0.

• Other

• New first-time setup menus.
• Add Passcode Lock during Setup Assistant.
• Vimeo and Flickr social network integrations.
• Italian, Korean, and Dutch dictionaries.
• New fade animation when pressing the power button.
• Touch ID.^P5S
• New ringtones and system sounds. iOS 6 ringtones and system sounds are moved to a menu called "Classic".

Bug fixes

• Fixes a bug with the Touch ID sensor on the iPhone 5S.
• Fixes a bug with the App Store purchases system.

3.0.04 ^{P4C S2D}
5.0.00 ^P4S
4.0.01 ^{S3D S3L}
5.00.01 ^{P5 S4L S4D M1C}
1.00.06 ^{P5C P5S S5L S5D M2C}

• Fixes bugs that could allow someone to bypass the Lock screen passcode.

Features

• Reintroduces a Greek keyboard option for passcode entry.

3.0.04 ^{P4C S2D}
5.0.02 ^P4S
4.1.02 ^{S3D S3L}
5.02.00 ^{P5 S4L S4D M1C}
1.02.02 ^{P5C P5S S5L S5D M2C}

Bug fixes

• Updates lock screen to delay display of 'slide to unlock' when Touch ID is in use. ^P5S
• Fixes iMessage bugs where messages failed to send and iMessage failed to activate.
• Improves system stability for iWork app.
• Fixes accelerometer calibration issue.
• Fixes a bug where Siri or VoiceOver used a lower voice.
• Fixes bug that could allow someone to bypass the Lock screen passcode.
• Fixes a bug that caused VoiceOver input to be too sensitive.
• Fixes a bug that caused supervised devices to become unsupervised when updating software.

Features

• Adds iCloud Keychain for website login & Wi-Fi network passwords, credit/debit card management, and other account info.
• Adds Password Generator in Safari for generating unique, hard-to-guess passwords.
• Adds back web search and Wikipedia search in Spotlight.
• Updates the bold text setting to change dial pad text.

3.0.04 ^{P4C S2D}
5.0.02 ^P4S
4.1.02 ^{S3D S3L}
5.02.00 ^{P5 S4L S4D M1C}
1.03.01 ^{P5C P5S S5L S5D M2C}

• Bug fixes and improvements, including a fix for an issue that causes FaceTime calls to fail for some users.

Bug fixes

• Corrects network provisioning for some iPhone 5C and iPhone 5S models sold in China.

3.0.04 ^{P4C S2D}
5.0.02 ^P4S
4.1.02 ^{S3D S3L}
5.02.00 ^{P5 S4L S4D M1C}
1.03.02 ^{P5C P5S S5L S5D M2C}

• Fix CVE-2014-1266, a bug in Secure Transport that can cause it to fail to properly authenticate an SSL/TLS connection.

3.0.04 ^{P4C S2D}
5.2.00 ^P4S
4.1.02 ^{S3D S3L}
6.02.00 ^{P5 S4L S4D M1C}
2.18.02 ^{P5C P5S S5L S5D M2C}

• CarPlay^{P5 P5C P5S}

• Providing iOS control to in-car control systems on some car models by selected vendors from 2014.
• Includes Siri integration (eyes-free/hands-free modes), satellite navigation, telephone, music, and iMessage integration.
• iOS experience designed for the car (iPhone 5 and later).
• Works by connecting a Lightning enabled iPhone to a CarPlay enabled vehicle.
• Supports Phone, Messages, Maps, and audio apps (inc. Music and third-party).
• Support for resuming audio playback in Bluetooth car stereo systems(that do not support CarPlay) while using Turn-By-Turn navigation in Maps.

• Siri ^{P4S P5 P5C P5S T5 S3 S4 S5 M1 M2}

• Manually control when Siri listens by holding down the Home button while you speak, then releasing it when you're finished.
• New, more natural sounding male and female voices for Chinese, UK English, Australian English, and Japanese.

• iTunes Radio

• Search field above Featured Stations to create stations based on Artist or Song.
• Buy albums directly from the Now Playing screen.

• Accessibility

• Bold font option now includes the keyboard, calculator, and many icon glyphs.
• Reduce Motion option now includes Weather, Messages, and multitasking UI animations.
• New options to display button shapes, darken app colors, and reduce white point.

• Calendar

• Option to display event list with the month view.
• Country specific holidays automatically added for many countries.
• List view has been redesigned.

• UI

• Camera app has a new "HDR Auto" feature.^P5S
• Photos & Camera tab in iOS Settings has a new "Upload Burst Photos" option.
• You can disable Parallax effect independently of other animations when setting up wallpaper.
• Notification Center now displays "No Notifications" and "No Missed Notifications" for the "All" and "Missed" sections respectively when there are no notifications.
• Caller ID photos: no longer full screen, instead small circle portrait for incoming/outgoing calls.^[93]
• New Yahoo logo, in both Notification Center and the Weather and Stocks apps.
• A new dialogue "Touch ID requires your passcode when iPhone restarts" when restarting.^P5S
• New iPad wallpapers.
• "Touch ID and Passcode" has been moved-up to the main menu in Settings.
• Animations and transitions are noticeably faster.
• Keyboard has new Shift/Backspace key highlights.
• Control Center has a new "spring" animation upon opening.
• Control Center sliders — volume and brightness — have momentum.
• Icons for Phone, Messages and FaceTime apps have less vibrant colors.
• Music app: Albums now in descending order when browsing by Artist.
• The buttons are circular in shape and do not show the word of what the icon means.
  • The Phone and FaceTime app have a new-look dialer and "end call" button.
  • The slide-to-power-off UI has been redesigned; the shape of the slider is circular and the thing that says "slide to power off" is oval in shape. Same with the "slide to answer" slider in the Phone and FaceTime apps.

• Bug Fixes/Improvements

• Fixes a home screen crash bug.
• Fixes display of Mail unread badge for numbers greater than 10,000.
• iCloud Keychain support in additional countries.
• FaceTime call notifications, automatically clear when call answered on another device.
• iBeacon improvements.^[94]
• Patches 41 security exploits, including those used by the Evasi0n 7 jailbreak. This firmware, along with iOS 7.1.1 and 7.1.2 can be jailbroken via the Pangu jailbreak.^[95]
• Reduce Motion function in Settings app is introduced. This function reduces the motion of the UI and disables the parallax effects.
• Removes the infamous "black screen of death (BkSoD)" and "White screen of death (WSoD)" that appeared in iOS 7.0.x.

• Stability and Performance

• Improved performance on iPhone 4.

• Software Update

• First update to iOS that enables beta versions to update over-the-air to the final release.

• Issues

• Touch ID fingerprint recognition is disabled when rebooting, turning Touch ID on and off; even restoring or resetting the device does not solve the problem.^P5S

3.0.04 ^{P4C S2D}
5.2.00 ^P4S
4.1.02 ^{S3D S3L}
6.02.00 ^{P5 S4L S4D M1C}
2.18.02 ^{P5C P5S S5L S5D M2C}

Bug fixes

• Stability and performance

• Fixes a bug which disabled Touch ID in iOS 7.1.^P5S
• Fixes a bug that could impact keyboard responsiveness
• Fixes the 1 stuck in Settings app when updating the latest version of IOS
• Fixes an issue when using Bluetooth keyboards with VoiceOver enabled^[96]

3.0.04 ^{P4C S2D}
5.2.00 ^P4S
4.1.02 ^{S3D S3L}
6.02.00 ^{P5 S4L S4D M1C}
2.18.02 ^{P5C P5S S5L S5D M2C}

Final release supported on iPhone 4.

Bug fixes, security update

• Bug Fixes/Improvements

• Improves iBeacon connectivity and stability
• Fixes a bug with data transfer for some 3rd party accessories, including bar code scanners
• Corrects an issue with data protection class of Mail attachments^[97]

• Initial release on Apple TV (2nd generation)

• AirPlay support.
• VoiceOver in menus.
• Bug fixes.

Bug fixes

• Addresses an issue that causes some high-definition TVs to incorrectly display at 480p.
• Addresses an issue that may cause a movie or TV show to be re-downloaded.^[116]

• AirPlay video support for third party apps on iDevices.
• New slideshow themes: View photos with the new Scrapbook, Photo Mobile, and Holiday Mobile slideshow themes.
• Improved on-screen keyboard: Search and enter names and passwords more easily with the redesigned on-screen keyboard.
• Enjoy Dolby Digital 5.1 surround sound when watching Netflix.