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Is there a way to see the upgrade history with date with some program e.g. apt? I want to know when exactly I upgraded security relevant packages the last time and the time before that... Thanks a lot! Edit: My bad. Forgot to mention that I am using Crunchbang waldorf. Sorry.

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What OS are you using? Ubuntu? – i08in Apr 20 '14 at 10:27
No Crunchbang. Sorry, forgot to write that – aldorado Apr 20 '14 at 10:37
Similar - unix.stackexchange.com/q/12578/4671. These kinds of questions have been asked before, and some of them should probably be closed as dupes. – Faheem Mitha Apr 20 '14 at 11:46
up vote 5 down vote accepted

The apt history is usually kept in /var/log/apt. You should be able to view the most recent log with:

less /var/log/apt/history.log

Older log files may be compressed, so you may need:

zless /var/log/apt/history.log.1.gz

Also see the term.log files for the output that was on the terminal.

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