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What is the difference between debian buster and debian bullseye?


Asked by Emilio Rollins on Dec 02, 2021 FAQ



Whereas Debian Buster is now considered the current stable release, at the time of its inception, it was an unstable version. Before being released as the stable version of Debian, Debian Buster was the testing version while Debian Bullseye was unstable. The now obsolete Debian Stretch was the stable version of Debian until recently.
Thereof,
At the time of this writing, the stable Debian release is 10.4, and its codename is “Buster.” “Stretch” was the codename for all version 9 variations, and “Jessie” was the codename for all version 8 variations. Future versions in development, but not yet stable, are “Bullseye” and “Bookworm.”
Keeping this in consideration, For example, Debian bullseye ("buster +1") was released on 2021-08-14 so Debian buster's EOL is around 2022-08. Note: the point releases (like 7.1 and 7.2) are detailed in each distribution's page. In the above array, data closely following "current" releasing tendencies have been highlighted in green.
Similarly,
stretch/buster/jessie Images tagged with stretch, buster, or jessie are codenames for different Debian releases. At the time of this writing, the stable Debian release is 10.4, and its codename is “Buster.” “Stretch” was the codename for all version 9 variations, and “Jessie” was the codename for all version 8 variations.
Subsequently,
The next release of Debian is codenamed bullseye — no release date has been set. Debian 10 (buster) — current stable release. Debian 9 (stretch) — oldstable release. Debian 8 (jessie) — oldoldstable release. Debian 7 (wheezy) — obsolete stable release.