Why Does APT Not Recognize Newer Versions Of A Package?
3298
How do I resolve unmet dependencies after adding a PPA?
73525
Do old package versions in CentOS mean that they do not have security fixes?
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
152479
Why are apt-get repositories hardcoded to a specific release?
2236
Why don't the Ubuntu repositories have the latest versions of software?
22506
Is there a way to find out whether an updated program/package lands in the official Ubuntu release repositories?
30645
How to install (old) packages for Ubuntu 9.04?
27076
How to see package version without install?
157289
Why use apt-get upgrade instead of apt-get dist-upgrade?
113837
How can I install an older version of a package via NuGet?
119943
Where can I find a repository for older unsupported releases?
19120
What is more reliable - apt-mark or APT-pin (/etc/apt/preferences.d/pin) for version locking?
12534
14.04 --> 16.04 failed; apt (>= 1.0.1ubuntu2.13)' is not installed
94171
Why Does Software Updater Say No updates Available, but apt-get upgrade Shows updates available?
91210
Why does Ubuntu only support versions for a limited time (and what does it mean)?
116869
Is it possible to know from apt if the package was installed explicitly or as a dependency of another package?
19395
How can I install more recent versions of software than what Debian provides?