| Version | Initial release date | Latest version | Release date | Device end-of-life | ||
|---|---|---|---|---|---|---|
| iPad | iPhone | iPod Touch | ||||
| iPhone OS 1 | June 29, 2007 | 1.1.5 | July 15, 2008 | — | — | — |
| iPhone OS 2 | July 11, 2008 | 2.2.1 | January 27, 2009 | — | — | — |
| iPhone OS 3 | June 17, 2009 | 3.2.2 | February 2, 2010 | — | 1st[a] | 1st[a] |
| iOS 4 | June 21, 2010 | 4.3.5[b] | July 25, 2011 | — | 3G[c] | 2nd[c] |
| iOS 5 | October 12, 2011 | 5.1.1 | May 25, 2012 | 1st | — | 3rd |
| iOS 6 | September 19, 2012 | 6.1.6 | February 21, 2014 | — | 3GS | 4th |
| iOS 7 | September 18, 2013 | 7.1.2 | June 30, 2014 | — | 4 | — |
| iOS 8 | September 17, 2014 | 8.4.1 | August 13, 2015 | — | — | — |
| iOS 9 | September 16, 2015 | 9.3.6 | July 22, 2019 | 2, 3rd, Mini[d] | 4S | 5th[d] |
| iOS 10 | September 13, 2016 | 10.3.4 | July 22, 2019 | 4th[e] | 5, 5C[e] | — |
| iOS 11 | September 19, 2017 | 11.4.1 | July 9, 2018 | — | — | — |
| iOS 12 | September 17, 2018 | 12.5.7 | January 23, 2023 | Air (1st), Mini 2, Mini 3 | 5S, 6 | 6th |
| iOS 13 / iPadOS 13 | September 19, 2019 (iOS) September 24, 2019 (iPadOS) |
13.7 | September 1, 2020 | — | — | — |
| iOS 14 / iPadOS 14 | September 16, 2020 | 14.8.1 | October 26, 2021 | — | — | — |
| iOS 15 / iPadOS 15 | September 20, 2021 | 15.8.2 | March 5, 2024 | Air 2, Mini 4 | 6S, SE (1st), 7 | 7th |
| iOS 16 / iPadOS 16 | September 12, 2022 (iOS) October 24, 2022 (iPadOS) |
16.7.7 | March 21, 2024 | Pro (1st), 5th | 8, X | — |
| iOS 17 / iPadOS 17 | September 18, 2023 | 17.4.1 | March 21, 2024 | — | — | — |
| 17.5 beta 2 | April 16, 2024 | — | — | — | ||
| Legend: Obsolete Supported Current Beta | ||||||
- ^ a b For the first generation iPhone and iPod Touch, the latest supported version is iOS 3.1.3, released February 2, 2010.
- ^ Released as iOS 4.2.10 for the CDMA variant of the iPhone 4.
- ^ a b For the iPhone 3G and iPod Touch (2nd gen), the latest supported version is iOS 4.2.1, released November 22, 2010.
- ^ a b For the Wi-Fi-only iPad 2, iPad (4th gen), and iPad Mini (1st gen), and for the iPod Touch (5th gen), the latest supported version is iOS 9.3.5, released August 25, 2016.
- ^ a b For the iPhone 5C and Wi-Fi-only iPad (4th gen), the latest supported version is 10.3.3, released July 19, 2017.
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