+ - cherry-pick or merge appropriate content from master
+
+ - make sure there is a doc/release-notes-<version>.inc
+ - make sure that doc/altusmetrum-docinfo.xml has the right copyright
+ year, and add release to the revision history at the front (release
+ notes will be pulled in automatically)
+ - make absolutely sure checked-out tree is "clean"
+ - make absolutely sure the pdclib/ submodule is on the master branch,
+ up to date, and "clean"
+
+ git log > ChangeLog
+ git commit -a
+ git tag -a <version> # full x.y.z version
+
+ - make sure .git/gbp.conf set to use branch-<version> as upstream