iOS 4.0 June 21, 2010 iOS 5.0 October 12, 2011 iOS 5.1 March 8, 2012 iOS 6.0 September 19, 2012 iOS 8.3 April 8, 2015 iOS 9.0 September 9, 2015 iOS 9.1 October 27, 2015 iOS 9.3 March 21, 2016 iOS 10.0 September 13, 2016 iOS 10.2 December 12, 2016 iOS 10.3 March 27, 2017 iOS 11.1 October 31, 2017 iOS 11.2 December 2, 2017 iOS 11.3 March 29, 2018 iOS 12.1 October 30, 2018 iOS 12.2 March 25, 2019 iOS 13.1 September 24, 2019 iOS 13.2 October 28, 2019 iOS 13.3 December 10, 2019 iOS 14.2 November 5, 2020 iOS 14.5 April 26, 2021 iOS 14.6 May 24, 2021 iOS 15.4 March 14, 2022 iOS 16.4 March 27, 2023 iOS 17.4 March 5, 2024 iOS 18.4 March 21, 2025