Tags give the ability to mark specific points in history as being important
Tagging blender release v2.73
tagging blender release candidate 2.73
Tagging blender release 2.72
tagging blender release: 2_67b_release, from 2_67a_release
tagging blender release: 2_67a_release, 4510
tagging blender release: 2_67_release, 4510
2.65a bugfix addon tag
tagging blender release: 2_65_release, 4033
tagging blender release: 2.64a
tagging blender release: 2_64_release, 3805