Commit 360d883a authored by Thomas Weber's avatar Thomas Weber Committed by Wolfgang Denk
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README: Fix description of version numbering scheme

The version numbering scheme was changed in Oct, 2008.
This patch brings the documentation to the actual level.
The description is taken from:

Signed-off-by: default avatarThomas Weber <>

Changed text slightly.
Signed-off-by: Wolfgang Denk's avatarWolfgang Denk <>
parent 86af10ca
...@@ -126,13 +126,17 @@ the string "u_boot" or on "U_BOOT". Example: ...@@ -126,13 +126,17 @@ the string "u_boot" or on "U_BOOT". Example:
Versioning: Versioning:
=========== ===========
U-Boot uses a 3 level version number containing a version, a Starting with the release in October 2008, the names of the releases
sub-version, and a patchlevel: "U-Boot-2.34.5" means version "2", were changed from numerical release numbers without deeper meaning
sub-version "34", and patchlevel "4". into a time stamp based numbering. Regular releases are identified by
names consisting of the calendar year and month of the release date.
The patchlevel is used to indicate certain stages of development Additional fields (if present) indicate release candidates or bug fix
between released versions, i. e. officially released versions of releases in "stable" maintenance trees.
U-Boot will always have a patchlevel of "0".
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
Directory Hierarchy: Directory Hierarchy:
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