What is the policy for official apt packages moving to old-releases?
52190
How and when is old-releases.ubuntu.com updated?
16782
Install packages from newer release without building (apt pinning)
421
How do I update a Drupal distribution to a newer version?
60659
Install newer package version from trusty-backports
30645
How to install (old) packages for Ubuntu 9.04?
16578
How to upgrade a single package using apt-get?
65612
How to delete/remove manually apt added repositories?
5830
How to prevent updating of a specific package?
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
8780
How can I find out in which distributions a package is available?
58032
How to install the previous version of a .deb package and pin it?
157525
How to delete old versions of same packages from a Local Repository?
32200
How do I downgrade a package?
19395
How can I install more recent versions of software than what Debian provides?
131490
How do I save Updates/Installed Packages?
138747
How to list installed packages in apt that are not backed by a repository?
105231
How to downgrade a package using dpkg