These are the publicly-released OTA updates available for iPod touches.
- 11.x: 11.0.2, 11.3, 11.4, 11.4.1
- 12.x: 12.0, 12.1, 12.1.1, 12.1.3, 12.2, 12.3, 12.4
- 13.x: 13.2, 13.2.1, 13.3, 13.3.1, 13.4, 13.4.5, 13.4.6, 13.4.8
- 14.x: 14.1, 14.2, 14.2.1, 14.3, 14.4, 14.5, 14.6, 14.7
- 15.x: 15.0, 15.1, 15.1.1, 15.2, 15.3, 15.4, 15.4.1, 15.5, 15.5.1, 15.6
- 16.x: 16.0, 16.1, 16.2, 16.3, 16.3.1, 16.3.2, 16.4, 16.4.1, 16.5, 16.6
- 17.x: 17.0, 17.1, 17.1.1, 17.2, 17.3, 17.4