Easiest way to upgrade php to latest version?
7095
How do I install different (upgrade or downgrade) PHP version in still supported Ubuntu release?
34983
How do I load a third party PHP library?
103592
phpinfo still shows old PHP version after installing new version from source
66930
How do I get the latest GIMP version available?
99169
How to install previous Firefox version?
75444
Painless way to install a new version of R?
27793
How do I install the latest Python 2.7.X or 3.X on Ubuntu?
31670
How to update 8.0.x to 8.1.x with composer?
36848
How do I safely install an older/newer version of Python?
78965
How to successfully rewrite old mysql-php code with deprecated mysql_* functions?
105456
How to upgrade from MySQL old passwords to new Password system
72832
Running two PHP versions (5.3 & 5.2) at the same time
49360
How do I call legacy PHP files?
130579
how to upgrade a single package in debian
13255
How can one run multiple versions of PHP 5.x on a development LAMP server?
79030
Installing PHP 5.6 on Xenial (16.04)
103445
Will painless upgrading from Drupal 8 alpha 3.x to beta be possible?