Tags give the ability to mark specific points in history as being important
Xen 4.10.0 "Comet" shim v3
Xen 4.8.3-pre Comet shim (v2)
Xen 4.10.0 Comet shim (v2)
Xen 4.10.0 Comet shim (v1)
Xen 4.9.1 Vixen Shim
Xen tree 4.10.0-rc8
Xen 4.10.0-rc6
Xen 4.10.0-rc5
Xen 4.10.0-rc4