Many OS vendors have a long standing tradition of giving each major release a new codename. Sometimes these codenames are so popular that they become the primary way of referring to a particular OS release: Debian Buster, Disco Dingo (Ubuntu), macOS Big Sur.
Windows Codenames
This is not the complete list of all the Windows OS versions or release codenames: rather, it’s the list of most well known ones.
- Windows 95 – Chicago
- Windows 98 – Memphis
- Windows Me – Millenium
- Windows XP – Whistler
- Windows Server 2003 – Whistler Server
- Windows Vista – Longhorn
- Windows Server 2008 – Longhorn Server
- Windows 7 – Windows 7
- Windows 8 – Windows 8
- Windows 10 – Threshold (followed up by Redstone)
- Windows 11 – Sun Valley
macOS Codenames
- macOS 10.14 – Mojave
- macOS 10.14 – Mojave
- macOS 10.15 – Catalina – October 7, 2019
- macOS Mojave releases
- macOS 10.14.5 – May 13, 2019
- macOS 10.14.4 – March 25, 2019
- macOS 11 – Big Sur – November 12, 2020
- macOS 12 – Monterey – October 25, 2021
Ubuntu Codenames
- Ubuntu 14.04 LTS – Trusty Tahr
- Ubuntu 16.04 LTS – Xenial Xerus
- Ubuntu 18.04 LTS – Bionic Beaver
- Ubuntu 18.10 – Cosmic Cuttlefish
- Ubuntu 19.04 – Disco Dingo
- Ubuntu 19.10 – Eoan Ermine
- Ubuntu 20.04 – Focal Fossa
- Ubuntu 20.10 – Groovy Gorilla
- Ubuntu 21.04 – Hirsute Hippo
- Ubuntu 21.10 – Impish Indri
Debian Codenames
- Debian 7 – Wheezy
- Debian 8 – Jessie
- Debian 9 – Stretch
- Debian 10 – Buster
- Debian 11 – Bullseye
- Debian 12 – Bookworm
- Debian 13 – Trixie
