tvOS is an iOS-based operating system for Apple TV.
| Device | Released | First tvOS | Max tvOS |
|---|---|---|---|
| Apple TV 4K (gen 2) | 2021 | 14 | 16 |
| Apple TV 4K (gen 1) | 2017 | 11 | |
| Apple TV HD 1 | 2015 | 9 |
1 Apple TV HD was known as the fourth generation Apple TV, before a rebranding in 2021.
The second and third Apple TV ran a more stripped-down version of iOS known as “Apple TV Software”.
| Device | Released | First Apple TV Software | Max Apple TV Software |
|---|---|---|---|
| Apple TV (gen 3) | 2012 | 5 (≈ iOS 5) | 7 (≈ iOS 8) |
| Apple TV (gen 2) | 2010 | 4 (≈ iOS 4) | 6 (≈ iOS 7) |
The first Apple TV ran a modified version of Mac OS X 10.4 Tiger, also called “Apple TV Software”.
| Device | Released | First Apple TV Software | Max Apple TV Software |
|---|---|---|---|
| Apple TV (gen 1) | 2007 | 1 (≈ OS X 10.4) | 3 (≈ OS X 10.4) |
