Cannot downgrade a package upgraded previously
5830
How to prevent updating of a specific package?
60659
Install newer package version from trusty-backports
154712
How to install a package from an older version of TeXLive?
100963
How to only perform LTS upgrades?
27831
Can't downgrade database from version 2 to 1
105231
How to downgrade a package using dpkg
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
76241
"no public key available" while upgrading using update-manager
101714
Is there any way to roll back the most recent upgrade?
7095
How do I install different (upgrade or downgrade) PHP version in still supported Ubuntu release?
11556
Can I smoothly upgrade from one LTS to next LTS release?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
77692
How do I update Drush to the latest available version?
137524
how do I downgrade google chrome?
121201
Why can't I update applications without upgrading the whole OS?
13369
How to make `apt-get upgrade` use less resources?
15687
How do I resume a release upgrade?