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) 3 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 release candidates or bug fix releases in "stable" maintenance trees.

Examples:

U-Boot v2009.11     - Release November 2009
U-Boot v2009.11.1   - Release 1 in version November 2009 stable tree
U-Boot v2010.09-rc1 - Release candiate 1 for September 2010 release

Current Status:

• U-Boot v2012.07 was released on Mon, 30 Jul 2012.
• The Merge Window for the next release (v2012.10) was closed on Sat Aug 18, 2012, 23:59:59 CEST
• Release "v2012.10" is scheduled in -221 days — on October 15, 2012

Future Releases:

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

• "v2013.01": end of MW = Nov 03, 2012; release = Jan 15, 2013
• "v2013.04": end of MW = Feb 09, 2013; release = Mar 15, 2013
• "v2013.07": end of MW = Apr 04, 2013; release = Jul 15, 2013
• "v2013.10": end of MW = Aug 03, 2013; release = Oct 14, 2013

Previous Releases:

U-Boot v2012.07 was released on Mon, 30 Jul 2012. (Statistics)

U-Boot v2012.04 was released on Sat, 21 Apr 2012. (Statistics)

U-Boot v2011.12 was released on Fri, 23 Dec 2011. (Statistics)

U-Boot v2011.09 was released on Thu, 29 Sep 2011. (Statistics)

U-Boot v2011.06 was released on Mon, 27 Jun 2011. (Statistics)

U-Boot v2011.03 was released on Thu, 31 Mar 2011. (Statistics)

U-Boot v2010.12 was released on Wed, 22 Dec 2010. (Statistics)

U-Boot v2010.09 was released on Tue, 28 Sep 2010. (Statistics)

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)