Tags give the ability to mark specific points in history as being important
exim4 (4.92-8+deb10u3) buster-security; urgency=high
exim4 (4.92.2-3) unstable; urgency=critical
exim4 (4.92.2-1) experimental; urgency=medium
exim4 (4.89-2+deb9u6) stretch-security; urgency=high
exim4 (4.92-8+deb10u2) buster-security; urgency=high
exim4 (4.92.1-3) unstable; urgency=high
exim4 (4.89-2+deb9u4) stretch-security; urgency=high
exim4 (4.92-6) experimental; urgency=medium
exim4 (4.92-5) unstable; urgency=medium
exim4 (4.92-4) unstable; urgency=medium