Here's is a very detailed history of every single major revision of Apple's macOS starting from Server 1.0 in 1999, to macOS 11 Big Sur in 2020, focusing on the key features that were introduced in every single version of macOS. Classic versions of macOS such as OS 9 and below are excluded from this video.

All OS video footage was recorded by myself using QEMU for the PowerPC variants, and real Macs for the rest.

Mac OS X Server 1.0 photos from here: https://virtuallyfun.com/wordpress/2018/04/21/mac-os-x-server-1-0-installs-on-qemu/

Developer Preview footage from GUIdebookgallery.org

Timecodes:
00:00 - Intro
00:18 - Server 1.0 and Developer Previews
02:00 - Mac OS X 10.0
02:53 - Mac OS X 10.1
03:50 - Mac OS X 10.2 Jaguar
04:21 - Mac OS X 10.3 Panther
05:25 - Mac OS X 10.4 Tiger
06:23 - Mac OS X 10.5 Leopard
07:30 - Mac OS X 10.6 Snow Leopard
08:07 - Mac OS X 10.7 Lion
09:25 - OS X 10.8 Mountain Lion
09:58 - OS X 10.9 Mavericks
10:34 - OS X 10.10 Yosemite
11:25 - OS X 10.11 El Capitan
12:03 - macOS Sierra 10.12
12:33 - macOS High Sierra 10.13
12:55 - macOS Mojave 10.14
13:28 - macOS Catalina 10.15
14:27 - macOS 11 Big Sur

Music from iLife + Audionautix.com

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