HISTORY OF APPLE IOS

 HISTORY  OF APPLE IOS

Apple Inc. provides updates to the iOS operating system for the iPhone, iPad, and iPod Touch through iTunes, and since iOS 5.0, also through over-the-air software updates. With the June 6, 2011 announcement of iOS 5.0, a USB connection to iTunes is no longer needed to activate iOS devices; data synchronization can happen automatically and wirelessly through Apple's iCloud service. The most recent major update, iOS 7, sees the addition of many new features, including a new flat theme, AirDrop support, and Control Center.
Overview
Apple's iOS did not have an official name until the release of the iPhone software development kit (iPhone SDK) on March 6, 2008. Before then, Apple marketing literature simply stated that their iPhone runs a version of "OS X", a reference to iOS' parent operating system.^[ When introduced, it was named iPhone OS. It was renamed iOS on June 7, 2010, as iPhone was no longer the only device to run iOS^. Apple licensed the "iOS" trademark from Cisco
Versions
On June 29, 2007, Apple released the first version of what became iOS – concurrently with the first iPhone. The final 1.x series release was 1.1.5, released shortly before version 2.0.
July 11, 2008 saw the public release of iPhone OS 2.0, with upgrades through version 2.2.1 made available.
June 17, 2009 was the release date for iPhone OS 3.0. It was updated through (and including) version 3.1.3 (release date February 2, 2010). The first generation iPod Touch and iPhone have iPhone OS 3.1.3 as their newest available version. The iPad was introduced with iPhone OS 3.2, later updated to 3.2.2, a version made specifically for the iPad.
On June 21, 2010, iOS 4.0 was released to the public and was made available only to the iPod Touch and iPhone. iOS 4.0 was announced to have over 1500 new APIs for developers, with the highly anticipated multitasking feature. The iPod Touch (2nd generation) and iPhone 3G have iOS 4.2.1 as the final version available. Nevertheless, many features are not available for the iPhone 3G or iPod touch 2nd generation, such as multitasking and home screen backgrounds. iOS 4.2 is the first version to bring major feature parity to the iPhone and iPad. The release of the CDMA iPhone for Verizon Wireless saw a branching of iOS. The 4.2 version sequence continued for the CDMA phone while 4.3 was released for all other products.
On June 6, 2011, Apple previewed iOS 5, Apple TV 4.4 beta and the iOS SDK 5 beta along with iCloud beta among other products. This update introduced iMessage chat between devices running iOS 5, a new notification system, Newsstand subscriptions, Twitter integrated into iOS, Reminders app, Enhancements to Airplay, full integration with iCloud and over 200 new features. iOS 5.0 supports all iPad models, iPhone 3GS, iPhone 4 GSM & CDMA, and the iPod Touch (3rd & 4th generation).
iOS 5 had only three minor additions, 5.0.1, 5.1, and 5.1.1, which were all provided as an OTA software update.
Apple concurrently provides the same version of iOS for the comparable model of iPhone and iPod touch, usually devices released in the same calendar year. iPhone users receive all software updates for free, while iPod Touch users paid for the 2.0 and 3.0 major software updates. As of iOS 4.0, Apple no longer charges for iPod Touch updates.
As of October 23, 2011, two versions of iOS were never released. iOS 1.2, which after the first beta was replaced by a 2.0 version number; the second beta was called 2.0b2 instead of 1.2b2. The other was iOS 4.2, replaced with 4.2.1 due to a Wi-Fi bug in 4.2 beta 3, causing Apple to release 2 more golden masters (4.2 GM and 4.2.1 GM).^[
Current versions

Obsolete

Discontinued

Current

Beta

Version	Build	Release date	Highest version for
3.1.3	7E18	February 2, 2010; 3 years ago (2010-02-02)	iPhone (1st generation); iPod Touch (1st generation)
4.2.1	8C148	November 22, 2010; 2 years ago (2010-11-22)	iPhone 3G; iPod Touch (2nd generation)
5.1.1	9B206	May 7, 2012; 18 months ago (2012-05-07)	iPod Touch (3rd generation); iPad (1st generation)
6.1.3	10B329	March 19, 2013; 7 months ago (2013-03-19)	iPhone 3GS
6.1.5	10B400	November 14, 2013; 5 days ago (2013-11-14)	iPod Touch (4th generation)
7.0.4	11B554a	November 14, 2013; 5 days ago (2013-11-14)	iPhone 4, iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S; iPod Touch (5th generation); iPad 2, iPad (3rd generation), iPad (4th generation), iPad Air; iPad Mini (1st generation), iPad Mini (2nd generation)
7.0.4 (Apple TV Software version 6.0.2)	11B554a	November 14, 2013; 5 days ago (2013-11-14)	Apple TV (2nd & 3rd generation)
7.1 Beta	11D5099e	November 18, 2013; 1 day ago (2013-11-18)	iPhone 4, iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S; iPod Touch (5th generation); iPad 2, iPad (3rd generation), iPad (4th generation), iPad Air; iPad Mini (1st generation), iPad Mini (2nd generation)

Version history: portable iOS devices[edit]

Obsolete

Discontinued

Current

Beta

iPhone OS 1.x[edit]
First iteration of Apple's touch-centric mobile operating system. No official name given on its initial release; Apple marketing literature simply stating the iPhone runs a version of Apple's desktop operating system, OS X.^[1] On March 6, 2008, with the release of the iPhone software development kit (iPhone SDK), Apple named it iPhone OS (they went on to rename it "iOS" on June 7, 2010).^[2]

Version	Build	Baseband	Release date	Features
1.0[edit]	1A543a	03.11.02_G	June 29, 2007	Initial release of iPhone and iPhone OS.
1.0.1[edit]	1C25	03.12.08_G	July 31, 2007	Safari security update.
1.0.2[edit]	1C28	03.14.08_G	August 21, 2007	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.
1.1[edit]	3A100aT1 3A101aP1,T1		September 14, 2007	Initial release on iPod Touch (1st generation). iTunes Store with home screen icon.
1.1.1[edit]	3A109aP1 3A110aT1	04.01.13_G	September 27, 2007[7][8]	This update is also called the iPhone "September '07 Update" by Apple.[9] Louder speakerphone and receiver volume. Home button double-click shortcut to phone favorites or music controls. Spacebar double-tap shortcut to intelligently 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.
1.1.2[edit]	3B48b	04.02.13_G	November 12, 2007	Battery charge level shown in iTunes. International language & keyboard support. Patched the TIFF security bug. Adds custom ringtone field. Bug fixes.
1.1.3[edit]	4A93	04.03.13_G	January 15, 2008	Commonly called the iPhone "January '08 Update" and January Software Upgrade by Apple.[10] 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).
1.1.4[edit]	4A102	04.04.05_G	February 26, 2008	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.
1.1.5[edit]	4B1T1		July 15, 2008	iPod Touch only Security fixes for iPod Touch users who choose not to pay for upgrade to version 2.0.
Version	Build	Baseband	Release date	Features

iPhone OS 2.x
2.0, the second major release of the iOS, became available with the release of the iPhone 3G. Devices running 1.x are upgradable to this version. This version of the OS introduces the App Store, making third-party applications available to the iPhone and iPod Touch.

Version	Build	Baseband	Release date	Features
2.0[edit]	5A347	04.05.04_GP1 01.45.00P2	July 11, 2008[11]	Initial release on iPhone 3G. $9.95[12] 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.[13] 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.[14] 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.[15] 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".[16] 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.[17] 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.[18] YouTube plugin for Safari.[19]
2.0.1[edit]	5B108	04.05.04_GP1 01.48.02P2	August 4, 2008	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.
2.0.2[edit]	5C1	04.05.04_GP1 02.08.01P2	August 18, 2008	Bug fixes Improved communication with 3G networks.[20] Transition from music list to Cover Flow has changed.[21] 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.
2.1[edit]	5F136P1P2 5F137T1 5F138T2 9M2517	04.05.04_GP1 02.11.07P2	September 9, 2008T1 September 12, 2008P1,P2	Free for iPod Touch users who have upgraded to iOS 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.[22] Dramatically reduced time to back up to iTunes.[23] 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.[23] Decrease in call set-up failures and dropped calls.[23] Improved accuracy of the 3G signal strength display. Some Bluetooth headsets which didn't originally work with visual voicemail on previous firmware versions have been reported to be working on 2.1.[citation needed] The 12/24 hour clock which has been available in previous versions is now usable to UK iPhone users.[citation needed] Improved way of creating the "Application Map" on reboot fixes the "ALoD" issue.[citation needed] Third-party application settings are loaded after loading the main Settings.[citation needed] With the UK English keyboard setting, when entering URLs, holding down the '.com' button would bring up shortcuts to other TLDs, but for some reason it would drop '.net' to make room for '.co.uk'. 2.1 adds '.net' for the UK English keyboard.[citation needed] Apple have fixed the grammar in the App Store when all apps up to date. Before 2.1, the update page would display the text "All Apps Are Up-To-Date." (hyphenated with a period). The update page now displays the text "All Apps Are Up to Date".[citation needed] Double tapping (the standard gesture for zooming) didn't work in prior firmware versions in the Mail application. The only way to zoom into content (e.g. a HTML attachment/web page) was to use the 'pinch' method. 2.1 now adds the functionality of double tapping to zoom in the Mail application.[citation needed] Calculator bug fixed affecting calculations involving Pi.[22] 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).[22] When receiving a text message, it used to display "Sender — Text Message" when the message preview was off (e.g. "Pete — Text Message"). Now just displays "New Text Message".[citation needed] 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).[22] 3G, EDGE, and GPRS indicators changed.[22] The camera can now be turned off within the restrictions page.[22] When taking a screen-shot of your phone, there is now the camera shutter noise. Pause apps by clicking the icon while it downloads/installs.[citation needed] Updated apps now keep their original position in the Home Screen.[citation needed] iPod volume/application volume setting is now independent of the phone ringer volume setting.[citation needed] 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.[22] 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.[22] Sound from iPod now fades out if you start syncing device with iTunes.[24] Options to load & display earlier text message in a conversation.[citation needed] EXIF data information now remains on photos/pictures when emailed from your iPhone. Sites such as Flickr are now able to show geotag and other information.[citation needed] When location services is switched off in the Settings menu, the Maps application reminds you to manually turn it back on from the Settings menu when using GPS. Originally, you would have the option to turn it on when the notification appeared.[citation needed] Bookmarked home screen apps open in full screen.[25] 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.[26]
2.2[edit]	5G77P1,P2,T1 5G77aT2	04.05.04_GP1[27] 02.28.00P2	November 21, 2008	Free update for iPod Touch owners that upgraded to iOS 2.0. Maps (iPhone only) 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.[28] Individual applications pages now have 'Tell A Friend' and 'Report A Problem' buttons.[28] 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.[29] 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[30] 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.[31] 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.[32] 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.[33] Minor bug fixes and improvements Picker sounds are now controlled by the keyboard sound settings[citation needed] Macworld OTA updates 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.
2.2.1[edit]	5H11P1,P2,T1 5H11aT2 9M2621a	04.05.04_GP1 02.30.03P2	January 27, 2009	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.
Version	Build	Baseband	Release date	Features

iPhone OS 3.x
3.0 became available with the iPhone 3GS. It was released on June 17, 2009. This release added features such as copy and paste, and MMS. Not all features were available on the original iPhone. Devices running 2.x were upgradeable to this firmware.^[34][35]

Version	Build	Baseband	Release date	Features
iPhone (1st generation), iPhone 3G, iPhone 3GS and iPod Touch (1st and 2nd generation)
3.0[edit]	7A341	04.05.04_GP1 04.26.08P2,P3	June 17, 2009	Initial release on iPhone 3GS. Limited features on first generation devices (iPhone (1st generation) and iPod Touch (1st generation). $4.95 upgrade for iPod Touch users.[36] 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.[37] 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.P3 Safari 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).[38] 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.[39] 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.[40] 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).[41] 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).[42] Speed optimisations during keyboard input and use of the included App Store application.[citation needed] 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.
3.0.1[edit]	7A400	04.05.04_GP1 04.26.08P2,P3	July 31, 2009	Fixes SMS vulnerability[43] Bug fixes
iPhone (1st generation), iPhone 3G, iPhone 3GS and iPod Touch (1st, 2nd and 3rd generation)
3.1[edit]	7C144P1,P2,P3 7C145T1,T2,T3 7C146T3	04.05.04_GP1 05.11.07P2,P3	September 9, 2009	Initial release on iPod Touch (2nd generation) (8 GB MC model). Initial release on 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 iOS 3.0. Free update for all iPhone owners. $4.95 for other iPod Touch users. 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. Xcode 3.1.3 has also been released and is said by people aware of the update to improve facilities for creating a new project as well as setting a target configuration.[citation needed]. 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.[44] 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.
3.1.2[edit]	7D11P1,P2,P3, T1,T2,T3	04.05.04_GP1 05.11.07P2,P3	October 8, 2009	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.
3.1.3[edit]	7E18P1,P2,P3, T1,T2,T3	04.05.04_GP1 05.12.01P2,P3	February 2, 2010	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.[45] Uses a new baseband which patches an exploit previously used for jailbreaking the iPhone 3G/3GS. Updates WebKit to 528.18.
iPad only
3.2[edit]	7B367S1,S1C	06.15.00S1C	April 3, 2010	iPad only[46] 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.[47] 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.
3.2.1[edit]	7B405S1,S1C	06.15.00S1C	July 15, 2010	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.
3.2.2[edit]	7B500S1,S1C	06.15.00S1C	August 11, 2010	iPad only Patches PDF exploit which allowed jailbreaking through Safari.[48]
Version	Build	Baseband	Release date	Features

iOS 4.x

Main article: iOS 4

iOS 4 was made available to the public for the iPhone and iPod Touch on June 21, 2010, and is the first release to be renamed to simply "iOS". This is the first major iOS release to drop support for some devices. It is also the first major iOS release that iPod Touch users do not have to pay for.
The iPhone 3G and iPod Touch (2nd generation) have limited features, including lack of multitasking capabilities and the ability to set a home screen wallpaper. While the iPhone 4, iPhone 3GS, iPod Touch (3rd & 4th generation) have all features enabled, such as multitasking. The iPhone and iPod Touch (1st generation) cannot run iOS 4.0 and above.
iOS 4.2.1, released November 22, 2010, added iPad compatibility. It also was the last version to support iPhone 3G and iPod Touch (2nd generation, MB & MC model).

Version	Build	Baseband	Release date	Features
iPhone 3G, iPhone 3GS, iPhone 4 and iPod Touch (2nd and 3rd generation)
4.0[edit]	8A293 P2 P3 P4 T2 T3	05.13.04 P2 P3 01.59.00 P4	June 21, 2010	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. Increased screen resolution. 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.
4.0.1[edit]	8A306 P2 P3 P4	05.13.04 P2 P3 01.59.00 P4	July 15, 2010	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.
4.0.2[edit]	8A400 P2 P3 P4 T2 T3	05.13.04 P2 P3 01.59.00 P4	August 11, 2010	iPhone and iPod Touch only Patches a PDF exploit which allowed jailbreaking through Safari.[49]
iPhone 3G, iPhone 3GS, iPhone 4 and iPod Touch (2nd, 3rd and 4th generation)
4.1[edit]	8B117 P2 P3 P4 T2 T3 T4	05.14.02 P2 P3 02.10.04 P4	September 8, 2010	iPhone and iPod Touch only Initial release on iPod Touch (4th generation). Improved calendar colours. Bug fixes iPhone 4 proximity sensor issues. Bluetooth connectivity. iPhone 3G performance problems under iOS 4.0.[50] Nike + iPod fixes and both the retina display. 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,[51] no support for iPhone 3GP2,[52] Updated carrier settings (US is AT&T 8.0).[citation needed] Security updates to accessibility, FaceTime, ImageIO and WebKit.[53] Improved AVRCP, adds support for Next and Previous.[citation needed] 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.[54] Check spelling can be turned off in Settings.[citation needed] P2P App support.[citation needed] Nike + iPod statistics submissions over Wi-Fi. Improved battery life across the board.[citation needed] High dynamic range imaging (HDR) (only available for the iPhone 4).[51] HD video upload over Wi-Fi (iPhone 4, and iPod Touch (4th generation) only).[50] iTunes adds Ping, a social music network and discovery tool (only available in countries with iTunes Store).[51] TV show rentals (only available for iTunes US Store).[51] Can move an existing appointment from one calendar to another. Notes syncing removed from iPhone 3G due to reported performance problems.[55] Safari 6531.22.7, Webkit 532.9.[citation needed] Restores Field test mode.[56]
iPhone 3G, iPhone 3GS, iPhone 4, iPod Touch (2nd, 3rd and 4th generation) and iPad (1st generation)
4.2[edit]	8C134 P2 P3 P4 T2 T3 T4 8C134b S1 S1C	05.15.04 P2 P3 03.10.01 P4 07.10.00 S1C	N/A, replaced by 4.2.1[57]	For iPhone, iPod Touch, and iPad Bug fixes Birthdays calendar does not display birthdays starting more than 77 years ago.[58] AirPlay (replacement of AirTunes, AirPlay will offer stream video, music, and photos over Wi-Fi).[59] AirPrint wireless printing with Print Center (select models).[59] 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)[59] 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.[60] Added an indicator in the App Store which shows if an app supports Game Center. Support for CoreMIDI. YouTube voting.[61] Minor improvements in UI graphics. New parental controls for deleting apps, changing mail accounts and location services.[61] The font size of text in Calendar can now be changed in the Accessibility settings.[62] Security fixes.[63] Network-controlled fast dormancy implemented in baseband to improve battery life and reduce network congestion.[64] iPad only 4.x support for the iPad.[59] 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.[65] Fixes the alarm bug caused by daylight saving time changing, affected on a part of iPhone and iPod Touch owners living in various countries.[66] Improved iPhone 3G and iPod Touch (2nd generation) performance.[67] 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).[61] 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.
4.2.1[edit]	8C148 P2 P4 T2 T3 T4 S1 S1C 8C148a P3	05.15.04 P2 P3 03.10.01 P4 07.10.00 S1C	November 22, 2010[68]	Bug fixes Intended release of iOS 4.2. Final release supported on 2nd generation devices (iPhone 3G and iPod Touch (2nd generation). For iPhone, iPod Touch, and iPad Bug fixes Fixes intermittent Wi-Fi issues from the unreleased iOS 4.2 update. Fixes VoIP issues. Fixes Car Stereo "music skip" issues.[citation needed] Find My iPhone location feature is free (iPhone 4, iPod Touch (4th generation), & iPad) running on iOS 4.2.1.P4, T4, S1, S1C
4.2.5[edit]	8E128 P4C	1.0.05 P4C	February 7, 2011	CDMA (Verizon) iPhone 4 only CDMA network support. Personal Hotspot feature. Note: The release date is February 7, because some Verizon customers received their phone on that day.
4.2.6[edit]	8E200 P4C	1.0.05 P4C	February 10, 2011	CDMA (Verizon) iPhone 4 only Bug fixes Personal Hotspot bug fixes.
4.2.7[edit]	8E303 P4C	1.0.06 P4C	April 14, 2011	CDMA (Verizon) iPhone 4 only Bug fixes Security update.
4.2.8[edit]	8E401 P4C	1.0.06 P4C	May 4, 2011	CDMA (Verizon) iPhone 4 only 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 turned off.
4.2.9[edit]	8E501 P4C	1.0.06 P4C	July 15, 2011	CDMA (Verizon) iPhone 4 only Security Update This update contains changes to the iOS security system. 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.
4.2.10[edit]	8E600 P4C	1.0.06 P4C	July 25, 2011	CDMA (Verizon) iPhone 4 only Security Update Fixes a security vulnerability with certificate validation.
iPhone 3GS, iPhone 4, iPod Touch (3rd and 4th generation), iPad (1st generation) and iPad 2
4.3[edit]	8F190 8F191 S2 S2C S2D	05.16.01 P3 04.10.01 P4 S2C 07.11.00 S1C 2.00.4 S2D	March 9, 2011	Initial release on iPad 2 is March 11 (and also March 25). 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 and iPad 2 only Initial release on iPad 2. 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. Voice over now reads the entire chart in Stocks app while in landscape mode. Fixed slideshow stop after 15 image 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.[clarification needed] in cell update (iPhone and iPad 3G + WiFi 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.
4.3.1[edit]	8G4	05.16.02 P3 04.10.01 P4 07.11.01 S1C 2.00.4 S2D	March 25, 2011	Bug fixes Fixed graphics glitches on iPod Touch (4th generation). Baseband updates for the 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.
4.3.2[edit]	8H7P3 P4 S1 S2 S2C T3 T4 8H8S2D	05.16.02 P3 04.10.01 P4 07.11.01 S1C 2.00.4 S2D	April 14, 2011	Bug fixes Fixed issue with blank or frozen video during (or before) a FaceTime call. Fixed issue with connectivity to 3G networks on iPad 3G + WiFi. Fixed issue where Exchange redirection does not occur when Activesync server is on an Exchange 2010 server and user mailbox is on Exchange 2007.
4.3.3[edit]	8J2P3 P4 S2 S2C S2D T3 T4 8J3S1 S1C	05.16.02 P3 04.10.01 P4 04.10.01 S2C 07.11.01 S1C 2.00.4 S2D	May 4, 2011	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 turned off. No longer allows user to remove apps that have not been completely downloaded.
4.3.4[edit]	8K2	05.16.02 P3 04.10.01 P4 07.11.01 S1C 2.00.4 S2D	July 15, 2011	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.
4.3.5[edit]	8L1	05.16.02 P3 04.10.01 P4 07.11.01 S1C 2.00.4 S2D	July 25, 2011	Security Update Fixes a security vulnerability with certificate validation.
Version	Build	Baseband	Release date	Features

iOS 5.x

Main article: iOS 5

iOS 5 was previewed to the public on June 6, 2011.^[71] It was released for iPhone 3GS, iPhone 4 (GSM and CDMA), iPhone 4S, iPod Touch (3rd & 4th generation), iPad, and iPad 2 on October 12, 2011.^[72]
iOS 5.1.1 is the final release supported for the iPad (1st generation) and iPod Touch (3rd generation).

Version	Build	Baseband	Release date	Features
iPhone 3GS, iPhone 4, iPhone 4S, iPod Touch (3rd and 4th generation), iPad (1st generation) and iPad 2
5.0[edit]	9A334	04.11.08 (GSM) P4 S2C 05.16.05 P3 07.11.01 S1C 1.0.11 (GSM) P4S 3.00.03 (CDMA) P4C S2D	October 12, 2011; 2 years ago (2011-10-12)	Initial release on iPhone 4S. 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 early (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 SpringBoard, 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 & iPod Touch 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. Traffic. 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. 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.
5.0.1[edit]	9A405 9A406 P4S (Additional build for iPhone 4S)	04.11.08 (GSM) P4 S2C 05.16.05 P3 07.11.01 S1C 1.0.13(9A405) P4S 1.0.14(9A406) P4S 3.00.03 (CDMA) P4C S2D	November 10, 2011 (9A405) 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. Build 9A406: Attempts to fix "Invalid Sim" and "No SIM card installed" issues (on iPhone 4S). Baseband update.
iPhone 3GS, iPhone 4, iPhone 4S, iPod Touch (3rd and 4th generation), iPad (1st generation), iPad 2 and iPad (3rd generation)
5.1[edit]	9B176 P3 P4 P4C P4S S1C S3L S3D 9B179 P4S	05.16.05 P3 07.11.01 S1C 04.12.01 P4 S2C 3.0.04 P4C 1.0.10 S3L S3D 2.0.10 P4S	March 7, 2012[78]	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). Camera shortcut on lock screen now always present, and has a new slide-up gesture to activate (iPhone & iPod Touch only). 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). Possible fix to Outgoing Call No Audio (OCNA) issue.[citation needed] 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.
5.1.1[edit]	9B206 P3 P4 P4C P4S S1C S2C S3L S3D 9B208 P4 (Additional build for iPhone 4 GSM)	05.16.05 P3 07.11.01 S1C 04.12.01 P4 S2C 3.0.04 P4C 1.0.11 S3L S3D 2.0.12 P4S	May 7, 2012 (2012-05-07) May 25, 2012 (2012-05-25)	Bug fixes, security update Final release supported on iPad (1st generation), and iPod Touch (3rd generation) 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 S3. 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).
Version	Build	Baseband	Release date	Features

iOS 6.x

Main article: iOS 6

iOS 6 was announced and previewed on June 11, 2012 during Apple Worldwide Developers Conference (WWDC) 2012, and its release was stated as Fall 2012. Following the pattern of previous iOS releases, some older devices were no longer supported, specifically the iPod Touch (3rd generation), and the iPad (1st generation). Supported devices include the iPhone 3GS and later; the iPod Touch (4th generation) and later; and the iPad 2 and later.^[82]
On September 12, 2012 at San Francisco's Yerba Buena Center for the Arts, among other items unveiled, Apple announced three iOS-related items: the next generation iPhone 5, the redesigned iPod Touch (5th generation), and the announcement of the release of iOS 6.0 the following week.^[83]
iOS 6 was released to the public on September 19, 2012, through iTunes and over-the-air updates.
iOS 6.1.3 is the final release supported for the iPhone 3GS and iOS 6.1.5 for the iPod Touch (4th Generation)
iOS 7.x

Main article: iOS 7

Apple announced iOS 7 on June 10, 2013 at its annual Apple Worldwide Developers Conference (WWDC) event, with release announced for sometime in the Fall (Northern Hemisphere) or Spring (Southern Hemisphere) 2013. At their iPhone event on September 10, 2013, Apple announced the full release of iOS 7 for September 18, 2013, while also unveiling two new iPhone models: the iPhone 5C and iPhone 5S. With this release, support was dropped for the iPhone 3GS and the iPod Touch (4th generation). Supported devices on this release include the iPhone 4 onwards, iPod Touch (5th generation), the iPad 2 onwards, and the iPad Mini (1st generation) onwards