(Newer Apple Platform Security Guides)
| Date | iOS Version |
|---|---|
| May 2012 | 6 |
| Febuary 2014 | 7 |
| October 2014 | 8.1 |
| September 2015 | 9 |
| May 2016 | 9.3 |
| March 2017 | 10 |
| September 2017 | Face ID |
| November 2017 | Face ID |
| January 2018 | 11 |
| September 2018 | 12 |
| November 2018 | 12.1 |
| May 2019 | 12.3 |