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| [[iPod Touch (1st generation)|1st]]{{efn|name=3.1.3}}
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! scope="row" | [[iOS 4]]
! scope="row" | [[iOS 4]]<ref>[[iOS 4]] expires in 2015</ref>
| {{dts|2010-6-21}}
| {{dts|2010-6-21}}
| {{Version|o|4.3.5}}{{efn|Released as iOS 4.2.10 for the CDMA variant of the iPhone 4.}}
| {{Version|o|4.3.5}}{{efn|Released as iOS 4.2.10 for the CDMA variant of the iPhone 4.}}

Revision as of 09:52, 14 June 2025

Not to be confused with IOS version history.

iOS (formerly iPhone OS) is a mobile operating system developed by Apple Inc. and was first released in June 2007 alongside the first generation iPhone.[1] iPhone OS was renamed iOS following the release of the iPad starting with iOS 4.[2]

Overview

Overview of iOS versions
Version Initial release date Latest version Latest release date Device end-of-life
iPad iPhone iPod Touch
iPhone OS 1 June 29, 2007 Unsupported: 1.1.5 July 15, 2008 — —
iPhone OS 2 July 11, 2008 Unsupported: 2.2.1 January 27, 2009
iPhone OS 3 June 17, 2009 Unsupported: 3.2.2 August 11, 2010 1st[a] 1st[a]
iOS 4[3] June 21, 2010 Unsupported: 4.3.5[b] July 25, 2011 3G[c] 2nd[c]
Legend:
Unsupported
Supported
Latest version
Preview version

Releases

iPhone OS 1

Main article: iPhone OS 1

iPhone OS 1 was announced on January 9, 2007, alongside the first-generation iPhone, with both releasing on June 29.[4] The operating system lacked an official name upon release, with Steve Jobs being quoted as saying "iPhone runs OS X", however it was later referred to as iPhone Software.[5][6] During the development phase of iPhone OS 1, there were around 16 or 17 concepts that were developed. Many on the team were skeptical of the feasibility of a touchscreen keyboard, and believed that users would prefer hardware keyboards. A number of different user interfaces were prototyped, including one that involved a multi-touch click-wheel.[7]

iPhone OS 1 laid the groundwork of the iPhone's operating system, including a grid-based Home Screen called SpringBoard, and a set of 16 built-in apps, including Text, for sending Short Message Service (SMS) messages; a YouTube app for watching videos hosted on the platform; and Maps, an app built around Google Maps with support for route directions, traffic conditions in supported regions, and support for finding and contacting businesses. It also featured a version of Safari, the web browser from Mac OS X, built around the iPhone's touchscreen interface. Other apps included iPod, for playback of music synced from a Mac or PC; Mail, for composing, viewing, and receiving emails; Phone, for taking or making calls, viewing or adding contacts, and listening to voicemails; and Settings, for customizing the behavior of iPhone OS and its built-in apps, among others. Support for multi-touch gestures, such as pinch-to-zoom, double tap, and scrolling via flicking and dragging was also included.[8] However, the operating system was criticized for not supporting content made with Adobe Flash, lacking support for cut, copy and paste features, as well as its lack of support for Bluetooth stereo headphones.[9] It also lacked support for third-party native apps, having support only for web apps,[10] which was criticized by reviewers and developers,[11][12] including John Carmack.[13]

iPhone OS 1.1 was released alongside the first-generation iPod Touch on September 5 as an update exclusive to the device, and added the iTunes Music Store which allowed users to purchase and download music directly onto their iPod Touch.[14] iPhone OS 1.1.1, released on September 27,[15] brought the iTunes Music Store to the iPhone alongside other changes, including louder audio receiver and loudspeaker volume, support for viewing Mail attachments in both portrait and landscape orientations, the ability to adjust the volume of alerts, additional intervals for passcode locking, and an option in Settings that allows turning on or off double tapping the space bar on the built-in software keyboard to automatically insert a period and space. Less significant changes included support for changing the order of stocks and cities in Stocks and Weather, and the ability to disable EDGE and GPRS while roaming.[16] iPhone OS 1.1.2 was released on November 9, adding additional language support and fixing a TIFF security vulnerability.[17][18]

iPhone OS 1.1.3 was released on January 15, 2008[19] and added several new features, particularly in Maps, such as a hybrid map view combining the satellite view and street and place labels, the ability to triangulate the user's current location via the use of Wi-Fi and cellular towers as well as the ability to drop pins to specific locations.[20] The Home Screen additionally received several enhancements, including support for rearranging icons, adding shortcuts to websites from Safari, and up to eight individual Home Screen pages. Other changes include increasing the amount of SMS messages that can be stored to 75,000 messages from 1,000 messages, and adding support in Text for sending a message to multiple recipients.[21] Apps were also changed to run from the user mobile instead of the root superuser.[22] iPhone OS 1.1.4 was released on February 26 as the last iPhone OS 1 update for the original iPhone, while iPhone OS 1.1.5 was released on July 15 as the last iPhone OS 1 update for the first-generation iPod Touch.[23]

iPhone OS 2

Main article: iPhone OS 2

iPhone OS 2 was announced on March 6, 2008[24][25] and was released alongside the iPhone 3G on July 11 as a paid update on iPod Touch and a free update on prior iPhone models.[26] It introduced the App Store, a digital storefront allowing users to purchase or download apps directly onto an iPhone or iPod Touch. A software development kit, the iPhone SDK, was released alongside the update and included a set of tools and application programming interfaces (APIs) allowing third-party developers to create native applications.[27][28] A number of features for enterprise environments were also introduced, including support for Microsoft Exchange through ActiveSync for push emails, contacts and calendars; support for the IPsec VPN protocol; and the ability to remotely wipe a device if marked as lost or stolen.[25] Several new features were added to Mail, including support for viewing Microsoft Office and iWork attachments; the ability to delete or move multiple emails at once; support for blind carbon copy; and the ability to select an outgoing email when composing messages. Other new features included a scientific mode in Calculator while in landscape, a search function for Contacts, and Restrictions, a parental controls system that allows users to, via a 4-digit passcode, lock down certain functionality of the operating system, i.e. disabling access to Safari or disabling playback of explicit music. Several technical and security features were also added, including Wi-Fi Protected Access 2 and IEEE 802.1X support; and the ability to re-enable Wi-Fi while in Airplane Mode.

iPhone OS 2.1 was released on September 12[29] and added the ability to create Genius playlists, the ability to turn on the forced deletion of all data stored on an iPhone or iPod Touch after ten incorrect passcode attempts, and the ability to disable access to the Camera app from within Restrictions. The update also included numerous bug fixes and technical improvements, including fixes for issues that could cause calls to drop or fail to initialize,[30] improved speed when installing third-party app from the App Store, improved battery life, reliability improvements when fetching email from IMAP or POP accounts, and hang and crash fixes for when users have a large number of installed third-party apps.[31] iPhone OS 2.1.1 was released alongside the second-generation iPod Touch as an exclusive update unavailable to other iPhone OS 2 devices.[32]

iPhone OS 2.2 was released on November 20[33] and added new features to Maps, including integration with Google Street View, support for directions when taking public transit or walking, and the ability to share a location by email. Dropped pins were also changed to display the dropped pin's address when tapped. Several changes were also made to Mail, including fixes for isolated issues with regard to scheduled fetching of emails, and improvements to wide HTML email format handling. Other changes made in the update include improved performance and stability within Safari, the ability to download podcasts from the iTunes Store over either Wi-Fi or cellular data, improved sound quality of visual voicemail messages, and the ability to go back to the first Home Screen from any other Home Screen by pressing the Home button. An option in Settings was also added that allows users to turn off the software keyboard's autocorrection feature.[34] iPhone OS 2.2.1 was released on January 27, 2009, as the final version of iPhone OS 2[35] and contained several fixes, including a fix for SMS messages failing to send.[36][37]

iPhone OS 3

Main article: iPhone OS 3

iPhone OS 3 was announced on March 17, 2009[38] and was released on June 17 alongside the iPhone 3GS. Apple did not drop support for any devices with this release. iPhone OS 3 was compatible with all devices released up to that time, but not all features were available on the original iPhone.[37] The final release supported on the original iPhone and iPod Touch (1st generation) is iPhone OS 3.1.3.[39] The first iPad was introduced along with iPhone OS 3.2.[40][41]

iPhone OS 3 was the first version to support cut, copy and paste.[42] The feature had previously only been available through jailbreaking.[43]

iOS 4

Main article: iOS 4

iOS 4 was announced on April 9, 2010,[44] and was released on June 21 alongside the iPhone 4.[45] It was the first version to carry the iOS name after the iPad was released. iOS 4 dropped support for the original iPhone and the first generation iPod Touch, marking the first time Apple ended device support as part of a major release of the operating system.[45] The iPhone 3G and the second generation iPod Touch were capable of running iOS 4, but certain features like multitasking and the ability to set a wallpaper were disabled due to hardware limitations.[46][47]

iOS 4 was available as a free update on both iPod Touch and iPhone, marking the first time a major release of iOS was made available to iPod Touch users for free. As a result, the practice of charging users for major software upgrades was eliminated, and all future major releases of the operating system would be made available for all users across iPhone, iPad, and iPod Touch at no charge.[45]

iOS 4.2.1 added support for the original iPad,[48] while iOS 4.3 added support for the iPad 2.[49]

Hardware support

iPhone

Supported iOS versions on the iPhone
Model iPhone OS iOS
1 2 3 4
iPhone (1st) Supported Supported Supported Unsupported
iPhone 3G — Supported Supported 4.2.1
iPhone 3GS — Supported Supported
iPhone 4 — Supported

iPad

Supported iOS and iPadOS versions on the iPad
Model iOS[d]
3 4
iPad (1st) 3.2 Supported
iPad 2 — 4.3

iPod Touch

Supported iOS versions on the iPod Touch
Model iPhone OS iOS
1 2 3 4
iPod Touch (1st) 1.1 Supported Supported Unsupported
iPod Touch (2nd) — 2.1.1 Supported Supported
iPod Touch (3rd) — 3.1.1 Supported
iPod Touch (4th) — 4.1

Timeline of iOS and derivative operating systems

Timeline of iOS and derivative operating systems
iPadOS 18iPadOS 17iPadOS 16iPadOS 15iPadOS 14iPadOS 13watchOS 11watchOS 10watchOS 9watchOS 8watchOS 7watchOS 6watchOS 5watchOS 4watchOS 3watchOS 2watchOS 1iOS 17iOS 16iOS 18iOS 15iOS 14iOS 13iOS 12iOS 11iOS 10iOS 9iOS 8iOS 7iOS 6iOS 5iOS 4iPhone OS 3iPhone OS 2iPhone OS 1tvOS 18tvOS 17tvOS 16tvOS 15tvOS 14tvOS 13tvOS 12tvOS 11tvOS 10tvOS 9Apple TV Software 7Apple TV Software 6Apple TV Software 5Apple TV Software 4Apple TV Software 3Apple TV Software 2Apple TV Software 1

Notes

  1. ^ a b For the first generation iPhone and iPod Touch, the latest supported version is iOS 3.1.3, released February 2, 2010.
  2. ^ Released as iOS 4.2.10 for the CDMA variant of the iPhone 4.
  3. ^ a b For the iPhone 3G and iPod Touch (2nd gen), the latest supported version is iOS 4.2.1, released November 22, 2010.
  4. ^ The OS was called "iPhone OS" for version 3.2.x only.

References

  1. ^ Holland, Patrick. "The iPhone at 15: Steve Jobs revealed his greatest product in 2007". CNET. Archived from the original on January 28, 2022. Retrieved January 28, 2022.
  2. ^ "iPhone OS gets new name, video calling". Macworld. June 27, 2010. Archived from the original on February 6, 2012. Retrieved February 4, 2017.
  3. ^ iOS 4 expires in 2015
  4. ^ Taylor, Chris (January 9, 2022). "Revisiting the iPhone launch keynote, 15 years on". Mashable. Archived from the original on February 16, 2022. Retrieved February 1, 2022.
  5. ^ "Apple – iPhone – Features". October 6, 2007. OS X. Archived from the original on January 15, 2008. iPhone uses OS X, the world's most advanced operating system.
  6. ^ "Update 1.0.1 released". MacRumors. July 31, 2007. Retrieved September 30, 2024.
  7. ^ Patel, Nilay (January 11, 2017). "Tony Fadell tells us the story of the iPod-based iPhone prototype". The Verge. Vox Media. Archived from the original on March 15, 2022. Retrieved February 3, 2022.
  8. ^ "iPhone User Guide" (PDF). Apple Inc. Archived from the original (PDF) on July 3, 2007. Retrieved September 30, 2024.
  9. ^ Hattersley, Lucy. "iPhone (1st gen) review: Find out what we thought in 2007". Macworld. Retrieved May 2, 2023.
  10. ^ Cheng, Jacqui (October 25, 2007). "Apple's iPhone Dev Center is for web apps, not native apps (yet)". Ars Technica. Condé Nast. Retrieved May 2, 2023.
  11. ^ Faas, Ryan (September 21, 2007). "15 things Apple should fix in iPhone 2.0". Computerworld. Retrieved May 2, 2023.
  12. ^ Miller, Paul (October 17, 2007). "Apple planning iPhone SDK for February!". Engadget. Retrieved May 2, 2023.
  13. ^ Orland, Kyle (May 15, 2018). "John Carmack recalls "frustrating" arguments with Apple's Steve Jobs". Ars Technica. Condé Nast. Retrieved May 2, 2023.
  14. ^ Dilger, Daniel Eran (September 17, 2007). "An in-depth iPod Touch review". AppleInsider. Retrieved May 2, 2023.
  15. ^ Kim, Arnold (September 27, 2007). "Apple Releases iPhone 1.1.1 Update [Updated]". MacRumors. Retrieved October 11, 2024.
  16. ^ Cheng, Jacqui (September 27, 2007). "iPhone 1.1.1 update working its way down the pipes (Updated)". Ars Technica. Condé Nast. Retrieved October 11, 2024.
  17. ^ Cheng, Jacqui (July 23, 2007). "Security firm discovers severe iPhone Safari exploit". Ars Technica. Condé Nast. Retrieved October 11, 2024.
  18. ^ Cheng, Jacqui (November 9, 2007). "iPhone/iPod touch 1.1.2 firmware lands with bug fixes, new languages". Ars Technica. Condé Nast. Retrieved October 11, 2024.
  19. ^ Landau, Ted (January 25, 2008). "Everything You Need to Know about iPhone 1.1.3". Tidbits. Retrieved September 14, 2024.
  20. ^ Dan, Moren (January 15, 2008). "First Look: iPhone 1.1.3". Macworld. Retrieved October 14, 2024.
  21. ^ Block, Gerry (January 15, 2008). "iPhone / iPod touch Firmware 1.1.3 Details". IGN. Ziff Davis. Retrieved October 11, 2024.
  22. ^ Bohon, Cory (January 22, 2008). "The secret life of firmware 1.1.3". Engadget. Retrieved September 24, 2024.
  23. ^ Breen, Christopher (July 15, 2008). "Apple quietly releases iPod touch 1.1.5 update". Macworld. Retrieved September 24, 2024.
  24. ^ Keizer, Gregg (March 6, 2008). "Apple adds Exchange support to iPhone, unveils SDK". Computerworld. Retrieved May 2, 2023.
  25. ^ a b Keizer, Gregg (March 9, 2008). "FAQ: What iPhone 2.0 means to you". Computerworld. Retrieved May 2, 2023.
  26. ^ Moren, Dan. "Apple officially releases iPhone OS 2.0 update". Macworld. Retrieved May 2, 2023.
  27. ^ Moren, Dan. "Review: iPhone 2.0 software update". Macworld. Retrieved May 2, 2023.
  28. ^ Markoff, John; Holson, Laura M. (July 10, 2008). "Apple's Latest Opens a Developers' Playground". The New York Times. Retrieved May 2, 2023.
  29. ^ Chartier, David (September 12, 2008). "Apple releases iPhone OS 2.1". Ars Technica. Condé Nast. Retrieved October 8, 2024.
  30. ^ Cohen, Peter (September 9, 2008). "Apple promises fewer dropped calls with iPhone 2.1". Macworld. IDG Communications, Inc. Retrieved October 18, 2024.
  31. ^ Ritchie, Rene (September 15, 2008). "iPhone OS 2.1 review". iMore. Retrieved October 8, 2024.
  32. ^ McLean, Prince (September 22, 2008). "Review: Apple's second-generation iPod touch". AppleInsider. Retrieved May 2, 2023.
  33. ^ O'Grady, Jason D. (January 27, 2009). "iPhone firmware 2.2.1 released, unlockers beware (updated 3x)". ZDNet. Ziff Davis. Retrieved October 9, 2024.
  34. ^ Chartier, David (November 20, 2008). "Apple releases iPhone OS 2.2 update". Ars Technica. Condé Nast. Retrieved October 9, 2024.
  35. ^ Cheng, Jacqui (January 27, 2009). "iPhone 2.2.1 offers improved Safari stability, Camera Roll fix". Ars Technica. Condé Nast. Retrieved October 9, 2024.
  36. ^ Truta, Filip (January 29, 2009). "iPhone 2.2.1 Fixes SMS Issue, Users Report". Softpedia. Retrieved October 9, 2024.
  37. ^ a b Cheng, Jacqui (June 17, 2009). "Hands on review: iPhone OS 3.0 chock full of changes". Ars Technica. Condé Nast. Retrieved May 2, 2023.
  38. ^ Lowensohn, Josh. "iPhone OS 3.0: What you need to know". CNET. Retrieved May 2, 2023.
  39. ^ Jennings, Richi (June 22, 2010). "iOS 4 release date roundup (aka iPhone OS 4.0)". Computerworld. Retrieved May 2, 2023.
  40. ^ "iPhone OS 3.2 is iPad-only, potential camera support, A4 processor". AppleInsider. January 27, 2010. Retrieved May 2, 2023.
  41. ^ Siegler, M. G. (July 29, 2010). "In April, Apple Ditched Google And Skyhook In Favor Of Its Own Location Databases". TechCrunch. Retrieved May 2, 2023.
  42. ^ Patel, Nilay (March 17, 2009). "iPhone finally gets copy and paste!". Engadget. Retrieved May 2, 2023.
  43. ^ Ziegler, Chris (April 29, 2023). "Apple drops lawsuit against former exec who accused company of spying". Engadget. Retrieved May 2, 2023.
  44. ^ Keizer, Gregg (April 9, 2010). "What iPhone OS 4 means for you". Computerworld. Retrieved May 2, 2023.
  45. ^ a b c "iOS 4: What you need to know". Macworld. Retrieved May 2, 2023.
  46. ^ Shimpi, Anand Lal. "Apple's iOS 4 Explored". AnandTech. Retrieved May 2, 2023.
  47. ^ Slivka, Eric (June 22, 2010). "Steve Jobs on Lack of Custom Wallpapers in iOS 4 for iPhone 3G". MacRumors. Retrieved May 2, 2023.
  48. ^ Siegler, M. G. (June 22, 2010). "Apple's Small Problem: iOS 4 And iPhone 4 One-Up The iPad". TechCrunch. Retrieved May 2, 2023.
  49. ^ Cunningham, Andrew. "iOS 4.3 Review". AnandTech. Retrieved May 2, 2023.
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