winamp/Src/external_dependencies/openmpt-trunk/doc/release_branches.md

branching release branches

1. adjust buildbot configuration by copying current trunk configuration to a new branch configuration and replace trunk with the branch version (i.e. 127), remember to also adjust url of nondist externals
2. add release build configuration to the buildbot branch configuration file, adjust buildbot config of release build configurations to output to the separate auto-release directory and change the archive format from 7z to zip for windows binaries
3. branch the nondist externals repository
4. branch the current trunk HEAD ($VER is the branch version): svn copy -m "branch OpenMPT-$VER" https://source.openmpt.org/svn/openmpt/trunk/OpenMPT https://source.openmpt.org/svn/openmpt/branches/OpenMPT-$VER
5. update versions in trunk https://source.openmpt.org/svn/openmpt/trunk/OpenMPT:
   1. set OpenMPT version in common/versionNumber.h to 1.$(($VER + 1)).00.01
   2. run build/update_libopenmpt_version.sh bumpminor
   3. run build/update_libopenmpt_version.sh bumpltabi
   4. update version numbers in build/svn/do_libopenmpt_release.sh and build/svn/do_libopenmpt_release_rc.sh
6. update versions in branch https://source.openmpt.org/svn/openmpt/branches/OpenMPT-$VER:
   1. set OpenMPT version in common/versionNumber.h to 1.$VER.00.$MINORMINOR+1
   2. run build/update_libopenmpt_version.sh bumpprerel
7. add versioned libopenmpt release script for new branch which copies release packages into place
8. update buildbot scripts that copy OpenMPT update information into place
9. update branch release date on libopenmpt trunk changelog