+ - if this is an x.y.z release, then:
+ git checkout branch-<version> # the x.y parts only
+ - 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)