Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Over the past couple of weeks I've noticed that my Ubuntu 11.10 installation has had many security related updates, including changes to CA Certificates.

Is there Ubuntu web page that lists all updates valid updates and a summary of the changes?

share|improve this question
See Latest updates with changelog for oneiric – nik Apr 1 '12 at 15:19

In terms of security, the update process is pretty secure because of GPG signatures. Your machine has a GPG keyring with trusted keys for package archives (apt-key list will show these), and apt-get/aptitude uses these to verify the Release file (which is then the root of a chain of SHA256 hashes which ultimately verify the downloaded .deb file). You do need to be careful of additional repositories like Launchpad PPAs which you configure though. is an online database of the official Ubuntu archives, which can be used to determine the latest version of packages (e.g. ca-certificates) and the package changelog. It isn't accessible over HTTPS unfortunately, so I wouldn't trust it for security purposes. The ubuntu-security-announce mailing list contains announcements of changes to the security archive (these messages can be verified with GPG if you subscribe to the list).

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .