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Is there a possibility to find out the reason for at least the last automatic update?

When the update-window pops up one can click on the entries and find a statement about what bug shall be fixed with a certain package, or more general why it is updated at all. I want to check for this information afterwards to check if a certain bug or functionality is claimed to be fixed already.

thx - robert.

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I don't think you can do it directly (as Ubuntu does not package the changelog info directly anymore, so this: http://superuser.com/questions/137818/easily-view-a-list-of-changes-of-upgraded-packages won't work anymore), but you can piece the information together yourself.

You can look at the log:

Show apt-get installed packages history via commandline?

This is the sample output from my machine:

Start-Date: 2013-10-29 20:29:59 Commandline: aptdaemon role='role-commit-packages' sender=':1.89' Upgrade: upower:amd64 (0.9.22-1ubuntu1, 0.9.22-1ubuntu2), firefox-locale-en:amd64 (24.0+build1-0ubuntu1, 25.0+build3-0ubuntu0.13.10.1), firefox:amd64 (24.0+build1-0ubuntu1, 25.0+build3-0ubuntu0.13.10.1), polly:amd64 (0.93.10-0~421~ubuntu13.10.1, 0.93.11-0~424~ubuntu13.10.1), libupower-glib1:amd64 (0.9.22-1ubuntu1, 0.9.22-1ubuntu2) End-Date: 2013-10-29 20:30:24

From there you can then look up the packages. I searched on launchpad.net for "upower 0.9.22-1ubuntu1" and got the following page https://launchpad.net/ubuntu/+source/upower/0.9.22-1ubuntu1

Which then has the following info:

Cherry-pick two fixes from upstream: - up-client: Really don't overwrite retval with prop values. Properties and property notification via libupower-glib got broken in 0.9.22. Incorrect values were being returned, meaning anything relying on these might do the wrong thing, such as in LP: #1238663 - lib: Fix crasher calling _about_to_sleep_sync(). Crash fix. -- Iain Lane Mon, 14 Oct 2013 11:41:36 +0100

You can do that for any of the packages that interest you.

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WOW. Thanks a lot for the answer! Very helpful. –  KaRo Nov 1 '13 at 20:47
    
Feel free to accept/upvote :) –  NGRhodes Nov 1 '13 at 23:48

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