PROJECT MOVED:
https://github.com/vstavrinov/updeb
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This script will upgrade running debian system and mail the result: what was upgraded, from what version to what and for what period of time. The actual upgrade will be done only if all index files will be successfully updated, all required packages will be successfully downloaded, and finally only if the simulating of upgrade will be finished without errors. All old configuration files are preserved and can be compared to new *.dpkg-dist files. If any error occur, this will be mailed to You. The auto roll back and health check features allows to get system in old state if upgrade or test fails. It is intended to be used as cron job.