Ubuntu version downgrade
2136
How to roll back Ubuntu to a previous version?
68597
Will upgrading Ubuntu remove installed software?
147530
What is the version of my debian system?
35146
Will apt-get dist-upgrade upgrade my system to newer version?
123413
Will apt-get dist-upgrade upgrade my system to a newer version?
67365
How to install another Ubuntu alongside different version of Ubuntu?
129223
Ubuntu upgrade from 17.04 to 18.04
50974
Can I legally downgrade from Win 7 64 bits to Win 7 32 bits?
94545
How to update ubuntu's python with latest version from source?
139753
Is it possible to downgrade packages installed with ELPA?
5162
How to fake a package version installed?
95336
Installing particular versions when repo has newer versions?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
84349
How to know default software version for all Ubuntu software for a specific Ubuntu version?
25295
How do I downgrade Minecraft to play on a server running an older version?
129
How do I find out which version and derivative of Ubuntu is right for my hardware in terms of minimal system requirements?
7095
How do I install different (upgrade or downgrade) PHP version in still supported Ubuntu release?