Where can I look up my update history?

Is there a place where I can look what updates I've installed?

Solution 1:

You can read the history.log file in /var/log/apt.

Eg. less /var/log/apt/history.log.

Solution 2:

In 10.10, Ubuntu Software Center has a list of all the updates you have downloaded in the past.

Solution 3:

/var/log/apt contains a history of package installations. However, by default, it is managed by logrotate which compresses and ages out old entries.

Solution 4:

As an alternative to lgarzo's answer, you can grep what you are interested in from /var/log/dpkg.log. E.g., if you want to see everything you installed or upgraded yesterday, you could run:

cat /var/log/dpkg.log | grep "^2012-03-25.*\ installed\ "

One thing to note: this will also list manually installed packages (sudo dpkg -i ...), which won't show up in apt's history.

Even better use zgrep if it's installed so you can find lines in gzipped files as well

zgrep "^2012-03-25.*\ installed\ " /var/log/dpkg.log*

Solution 5:

On 10.04 Click (System > Administration > Synaptic Package Manager > File > History)