Update code after package upgrade
116459
How to solve "Mismatched LaTeX support files" problem permanently
35093
Upgrading from the command line?
133
How can I fix a 404 Error when using a PPA or updating my package lists?
27259
Re-compiling Python Addin after editing script?
135452
How do you see what packages are available for update
67481
How to revert a do-release-upgrade?
40885
What should I do when I got the KEYEXPIRED error message after an apt-get update?
130579
how to upgrade a single package in debian
32200
How do I downgrade a package?
110148
Why does `do-release-upgrade` skip a version?
126343
How to downgrade a package via apt-get?
64558
What does `do-release-upgrade` really do?
12164
How do I update my TeX distribution?
87680
How to reverse '-proposed' channel package upgrade?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
91948
How do I update an Addon for 2.8
142310
Ubuntu 12.04 software upgrade does not show 12.10 upgrade