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Here is a nice Linux tip: to get change information of some RPM package it’s enough to execute the following command rpm -q --changelog package for example rpm -q --changelog openssh will output something like:


* Fri Mar 03 2006 Tomas Mraz - 4.3p2-4
- allow access if audit is not compiled in kernel (#183243)

* Sat Feb 25 2006 Tomas Mraz - 4.3p2-3
- enable the subprocess in chroot to send messages to system log
- sshd should prevent login if audit call fails

* Wed Feb 22 2006 Tomas Mraz - 4.3p2-2
- print error from scp if not remote (patch by Bjorn Augustsson #178923)

…

* Sat Oct 30 1999 Damien Miller
- Back to old binary names

* Fri Oct 29 1999 Damien Miller
- Use autoconf
- New binary names

* Thu Oct 28 1999 Damien Miller
- Initial RPMification, based on Jan "Yenya" Kasprzak’s spec.

To look through whole output it would be useful to use more or less commands:
rpm -q --changelog /path/to/package.rpm | less

Similar command is available also in Debian: dpkg-parsechangelog. It reads and parses the changelog of an unpacked Debian source tree and outputs the information in it to standard output in a machine-readable form.