Pozilla is supplied with gtranslator since release 0.35 and is a maintainer/admin script for project admins who want to be i18n friendly and warn "their" translators before a coming release is made and send the po files in updated and merged versions to the last translators, a mailing list etc...

For an overview of all the options you can call 

pozilla.sh --help
or look up the pozilla.sh manual page which is very detailed about pozilla's options and typical pozilla.sh usage.

Here I want to do some propaganda for it ,-) It's really very useful and makes everyone's life a bit easier. If you want to a release in x days, simply run pozilla.sh with your desired arguments and the anouncement about the coming release will be send to all last translators and the i18n mailing list (per default "gnome-i18n@gnome.org") with attached po files if you want and stats about their po files.

How could you otherways make your and translators life easier then with pozilla?(TM)