Tags give the ability to mark specific points in history as being important
5.7.1~20161021+dfsg-6 unstable; urgency=medium
5.7.1~20161021+dfsg-5 unstable; urgency=medium
5.7.1~20161021+dfsg-4 unstable; urgency=medium
5.7.1~20161021+dfsg-3 unstable; urgency=medium
5.7.1~20161021+dfsg-2 experimental; urgency=medium
5.7.1~20161021+dfsg-1 experimental; urgency=medium
5.6.1+dfsg-3ubuntu7~2; urgency=medium
5.6.1+dfsg-3ubuntu5~1; urgency=medium
5.6.1+dfsg-3ubuntu2~1; urgency=medium
5.7.0+dfsg-3 experimental; urgency=medium