Task | Time |
---|---|
Backup to Time Machine (Optional) | 5 minutes to a day |
macOS High Sierra Download | 20 minutes to an 1 hour |
macOS High Sierra Installation Time | 20 to 50 minutes |
Total macOS High Sierra Update Time | 45 minutes to an hour and 50 minutes |
https://en.wikipedia.org/wiki/Sesamoid_bone
Cheetah 10.0 | Puma 10.1 | Jaguar 10.2 |
Panther 10.3 | Tiger 10.4 | Leopard 10.5 |
Snow Leopard 10.6 | Lion 10.7 | Mountain Lion 10.8 |
Mavericks 10.9 | Yosemite 10.10 | El Capitan 10.11 |
Sierra 10.12 | High Sierra 10.13 | Mojave 10.14 |
Catalina 10.15 |