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Release Engineering Information

This page contains documentation about the FreeBSD release engineering process.

Code-Freeze Status

The following table lists the code freeze status for the major branches of the src/ subtree of the FreeBSD Subversion repository. Commits to any branch listed as "frozen" must first be reviewed and approved by the relevant contact party. The status of other subtrees such as ports/ and doc/, is also provided below.

Branch Status Contact Notes
head Open committers Active development branch for 12.0-CURRENT.
stable/11 Open committers Development branch for FreeBSD 11-STABLE.
releng/11.0 Frozen security-officer@FreeBSD.org FreeBSD 11.0 supported errata fix branch.
stable/10 Open committers Development branch for FreeBSD 10-STABLE.
releng/10.3 Frozen security-officer@FreeBSD.org FreeBSD 10.3 supported errata fix branch.
releng/10.2 Frozen security-officer@FreeBSD.org FreeBSD 10.2 supported errata fix branch.
releng/10.1 Frozen security-officer@FreeBSD.org FreeBSD 10.1 supported errata fix branch.
releng/10.0 Frozen security-officer@FreeBSD.org FreeBSD 10.0 errata fix branch (not officially supported).
stable/9 Open committers Development branch for FreeBSD 9-STABLE.
releng/9.3 Frozen security-officer@FreeBSD.org FreeBSD 9.3 supported errata fix branch.
releng/9.2 Frozen security-officer@FreeBSD.org FreeBSD 9.2 errata fix branch (not officially supported).
releng/9.1 Frozen security-officer@FreeBSD.org FreeBSD 9.1 errata fix branch (not officially supported).
releng/9.0 Frozen security-officer@FreeBSD.org FreeBSD 9.0 errata fix branch (not officially supported).
stable/8 Open committers Maintenance branch for 8-STABLE (not officially supported).
releng/8.4 Frozen security-officer@FreeBSD.org FreeBSD 8.4 errata fix branch (not officially supported).
releng/8.3 Frozen security-officer@FreeBSD.org FreeBSD 8.3 errata fix branch (not officially supported).
releng/8.2 Frozen security-officer@FreeBSD.org FreeBSD 8.2 errata fix branch (not officially supported).
releng/8.1 Frozen security-officer@FreeBSD.org FreeBSD 8.1 errata fix branch (not officially supported).
releng/8.0 Frozen security-officer@FreeBSD.org FreeBSD 8.0 errata fix branch (not officially supported).
stable/7 Open committers Maintenance branch for 7-STABLE (not officially supported).
releng/7.4 Frozen security-officer@FreeBSD.org FreeBSD 7.4 errata fix branch (not officially supported).
releng/7.3 Frozen security-officer@FreeBSD.org FreeBSD 7.3 errata fix branch (not officially supported).
releng/7.2 Frozen security-officer@FreeBSD.org FreeBSD 7.2 errata fix branch (not officially supported).
releng/7.1 Frozen security-officer@FreeBSD.org FreeBSD 7.1 errata fix branch (not officially supported).
releng/7.0 Frozen security-officer@FreeBSD.org FreeBSD 7.0 errata fix branch (not officially supported).
stable/6 Open committers Maintenance branch for 6-STABLE (not officially supported).
releng/6.4 Frozen security-officer@FreeBSD.org FreeBSD 6.4 errata fix branch (not officially supported).
releng/6.3 Frozen security-officer@FreeBSD.org FreeBSD 6.3 errata fix branch (not officially supported).
releng/6.2 Frozen security-officer@FreeBSD.org FreeBSD 6.2 errata fix branch (not officially supported).
releng/6.1 Frozen security-officer@FreeBSD.org FreeBSD 6.1 errata fix branch (not officially supported).
releng/6.0 Frozen security-officer@FreeBSD.org FreeBSD 6.0 errata fix branch (not officially supported).
stable/5 Open committers Maintenance branch for 5-STABLE (not officially supported).
releng/5.5 Frozen security-officer@FreeBSD.org FreeBSD 5.5 errata fix branch (not officially supported).
releng/5.4 Frozen security-officer@FreeBSD.org FreeBSD 5.4 errata fix branch (not officially supported).
releng/5.3 Frozen security-officer@FreeBSD.org FreeBSD 5.3 errata fix branch (not officially supported).
releng/5.2 Frozen security-officer@FreeBSD.org FreeBSD 5.2 / 5.2.1 security fix branch (not officially supported).
releng/5.1 Frozen security-officer@FreeBSD.org FreeBSD 5.1 security fix branch (not officially supported).
releng/5.0 Frozen security-officer@FreeBSD.org FreeBSD 5.0 security fix branch (not officially supported).
stable/4 Open committers Maintenance branch for 4-STABLE (not officially supported).
releng/4.11 Frozen security-officer@FreeBSD.org FreeBSD 4.11 errata fix branch (not officially supported).
releng/4.10 Frozen security-officer@FreeBSD.org FreeBSD 4.10 security fix branch (not officially supported).
releng/4.9 Frozen security-officer@FreeBSD.org FreeBSD 4.9 security fix branch (not officially supported).
releng/4.8 Frozen security-officer@FreeBSD.org FreeBSD 4.8 security fix branch (not officially supported).
releng/4.7 Frozen security-officer@FreeBSD.org FreeBSD 4.7 security fix branch (not officially supported).
releng/4.6 Frozen security-officer@FreeBSD.org FreeBSD 4.6 security fix branch (not officially supported).
releng/4.5 Frozen security-officer@FreeBSD.org FreeBSD 4.5 security fix branch (not officially supported).
releng/4.4 Frozen security-officer@FreeBSD.org FreeBSD 4.4 security fix branch (not officially supported).
releng/4.3 Frozen security-officer@FreeBSD.org FreeBSD 4.3 security fix branch (not officially supported).
stable/3 Open committers Maintenance branch for 3-STABLE (not officially supported).
stable/2.2 Open committers Maintenance branch for 2.2-STABLE (not officially supported).
Subtree Status Contact Notes
ports/ Open portmgr@FreeBSD.org FreeBSD Ports Collection.
doc/ Open freebsd-doc@FreeBSD.org SGML/XML based documentation set.

Release Engineering Documentation

  • FreeBSD Release Engineering
    Describes the approach used by the FreeBSD release engineering team to make production quality releases of the FreeBSD Operating System. It describes the tools available for those interested in producing customized FreeBSD releases for corporate rollouts or commercial productization.

Release Engineering Team

The primary release engineering team is responsible for approving MFC requests during code freezes, setting release schedules, and all of the other responsibilities laid out in our charter.

Primary RE Team (re@FreeBSD.org) : Glen Barber, Konstantin Belousov, Bryan Drewery, Marc Fonvieille, Rodney Grimes, Xin Li, Hiroki Sato, Gleb Smirnoff, Marius Strobl, Robert Watson form the primary release engineering decision-making group.

The builders release engineering team is responsible for building and packaging FreeBSD releases on the various supported platforms.

Builders REs (re-builders@FreeBSD.org) : Marcel Moolenaar, Yoshihiro Takahashi, Nathan Whitehorn

The third party packages in the Ports Collection are managed by the portmgr@ team. Among many other responsibilities, the port managers keep the ports cluster running smoothly to produce binary packages.

Package Builders (portmgr@FreeBSD.org) : Mathieu Arnold, Antoine Brodin, Bryan Drewery, Steve Wills

Old Releases

The FreeBSD Project does not maintain a complete archive of old release ISO images but many of them are available at ftp://ftp-archive.FreeBSD.org/pub/FreeBSD-Archive/old-releases/.

If you are unable to find an FTP mirror that still contains the release you are looking for, then you can email CD-ROM vendors to see if they have any old releases available.