Tags give the ability to mark specific points in history as being important
release candidate 6.6.0.rc3, for translations
release candidate 6.6.0.rc1
Tag 7.0.0-alpha11. Apparently I never tagged alpha10.
Release 6.5.6 (tag moved to include NEWS change, originally f09e90f8ef5728d858778b70eec0ebc56526a7a9).
Tag 6.5.5.rc1 in retrospect.