U-Boot Release Cycle

Like with many other things, U-Boot development follows the Linux model of a release cycle. That means:

• We will have U-Boot releases at a fixed interval.
• The release interval shall be (approximately) 2 months.
• Immediately following each release, there will be a "merge window" of normally 2 weeks. While this merge window is open, new features can be added to the U-Boot source tree. Linus Torvalds explains here and there what the term "merge window" is supposed to mean.
• After the merge window closes, no new features may be added to allow for a release candidate phase which is intended to fix bugs and regressions.

Note: even though we follow Linux ways in may respects, there are differences in the actual procedures, which are documented in section "Development Process".

Version Numbers:

Starting with the release in October 2008, the names of the releases were changed from numerical release numbers without deeper meaning into a time stamp based numbering. Regular releases are now identified by names consisting of the calender year and month of the release date. Additional fields (if present) indicate intermediate (hot fix) releases, and bug fix releases in "stable" maintenance trees.

Current Status:

• The Merge Window for the next release (v2010.09) is closed.
• Release "v2010.09" is scheduled in 10 days — on September 12, 2010.

Future Releases:

Please note that the following dates are for information only and without responsibility:

• "v2010.12": end of MW = Sep 24, 2010; release = Dec 13, 2010
• "v2011.03": end of MW = Jan 08, 2011; release = Mar 13, 2011

Previous Releases:

U-Boot v2010.06 was released on Tue, 29 Jun 2010. (Statistics)

U-Boot v2010.03 was released on Wed, 31 Mar 2010. (Statistics)

U-Boot v2009.11 was released on Tue, 15 Dec 2009. (Statistics)

U-Boot v2009.08 was released on Mon, 31 Aug 2009. (Statistics)

U-Boot v2009.06 was released on Sun, 14 Jun 2009. (Statistics)

U-Boot v2009.03 was released on Sat, 21 Mar 2009. (Statistics)

U-Boot v2009.01 was released on Wed, 21 Jan 2009. (Statistics)

U-Boot v2008.10 was released on Sat, 18 Oct 2008. (Statistics)

U-Boot v1.3.4 was released on Tue, 12 Aug 2008. (Statistics)

U-Boot v1.3.3 was released on Mon, 19 May 2008. (Statistics)

U-Boot v1.3.2 was released on Sun, 09 Mar 2008. (Statistics)

U-Boot v1.3.1 was released on Thu, 06 Dec 2007. (St Nicholas release) (Statistics)

U-Boot v1.3.0 was released on Mon, 19 Nov 2007. (Statistics)