Tags give the ability to mark specific points in history as being important
Debian release 2.4.0-1
python-testtools Debian release 2.3.0-5~bpo9+2
python-testtools Debian release 2.3.0-5~bpo9+1
Debian release 2.3.0-4
tagging package python-testtools version debian/2.3.0-3