HOWTO monitor changes in installed packages within jails?

[Michael Grimm]

Hi --

I did migrate to pkgng some month ago, and ever since I am curious how to monitor changes in installed packages within jails. I am looking for a functionality/port that works like 490.status-pkg-changes for my host.

Question: is there any functionality within the periodic system or a port that I might have missed to find?

Thanks in advance and with kind regards,
Michael