Install unstable Qgis-master alongside release version
131900
Installing the development files libqgis-dev in Ubuntu 12.04
26402
How to install the latest stable version of Chromium?
50613
Installing QGIS on Ubuntu
34141
How do I install the latest stable version of LibreOffice?
133735
Install QGIS 3.x on Ubuntu 18.04
64561
Can multiple versions of the same package co-exist on the same system?
100000
QGIS update from 2.14 to 2.16 failed on Ubuntu 14.04
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
18237
QGIS 2.99 "qgis._core import error: DLL load failed"
124502
how to resolve unmet dependencies and file collisions due mixing diferent repositories?
146311
Cannot do a `composer install` even though my minimum stability is listed as dev
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
24165
Upgrade to version newer than repositories
23302
How do I install/upgrade r-base to the latest version?
71493
Problems with plugin/installer manager in QGIS 2.6.1 Debian
421
How do I update a Drupal distribution to a newer version?
47139
Cannot fix QGIS after upgrade to Ubuntu 13.04 Raring