A really cool, and handy, feature of rpm is the ability to view the changelog for a package you’ve installed, or recently updated:
$ rpm -q --changelog gnome-shell | less * Wed Apr 16 2014 Florian Müllner <fmuellner@redhat.com> - 3.8.4-32 - Improve vertical monitor layouts Resolves: rhbz#1096186 * Wed Mar 19 2014 Florian Müllner <fmuellner@redhat.com> - 3.8.4-31 - Fix some more background memory leaks Resolves: rhbz#1027192 * Wed Mar 12 2014 Ray Strode <rstrode@redhat.com> 3.8.4-30 - Fix automatic shield lifting when smartcard is inserted Resolves: #1063488 * Mon Mar 10 2014 Ray Strode <rstrode@redhat.com> 3.8.4-29 - Don't show user list if require smartcard is true Resolves: #1063390