You are about to upgrade to a version of Ubuntu that is no longer supported.
This release of Ubuntu is no longer supported by Canonical. The support timeframe is between 18 month and 5 years after the initial release. You will not receive security updates or critical bugfixes. See http://www.ubuntu.com/releaseendoflife for details.
It is still possible to upgrade this version and eventually you will be able to upgrade to a supported release of Ubuntu.
Alternatively you may want to consider to reinstall the machine to the latest version, for more information on this, visit: http://www.ubuntu.com/desktop/get-ubuntu
For pre-installed system you may want to contact the manufacturer for instructions.
If you would like to help shape Ubuntu, take a look at the list of ways you can participate at
http://www.ubuntu.com/community/participate/
Your comments, bug reports, patches and suggestions will help ensure that our next release is the best release of Ubuntu ever. If you feel that you have found a bug please read:
http://help.ubuntu.com/community/ReportingBugs
Then report bugs using apport in Ubuntu. For example:
ubuntu-bug linux
will open a bug report in Launchpad regarding the linux package.
If you have a question, or if you think you may have found a bug but aren't sure, first try asking on the #ubuntu or #ubuntu-bugs IRC channels on Freenode, on the Ubuntu Users mailing list, or on the Ubuntu forums:
http://help.ubuntu.com/community/InternetRelayChat http://lists.ubuntu.com/mailman/listinfo/ubuntu-users http://www.ubuntuforums.org/
You can find out more about Ubuntu on our website, IRC channel and wiki. If you're new to Ubuntu, please visit:
http://www.ubuntu.com/
To sign up for future Ubuntu announcements, please subscribe to Ubuntu's very low volume announcement list at:
http://lists.ubuntu.com/mailman/listinfo/ubuntu-announce