Symfony LTS: how to upgrade from 3.4 to 4.4?

Question

Tell me please, what steps are required in order to upgrade Symfony from 3.4 to 4.4 LTS?

Answer 1

You can visit the official Symfony GitHub repository and switch to the 4.4 branch (or access said branch directly via this url). Inside that repository you will find a series of files with specific instructions on how to upgrade:

UPGRADE-4.0.md - UPGRADE FROM 3.x to 4.0

UPGRADE-4.1.md - UPGRADE FROM 4.0 to 4.1

UPGRADE-4.2.md - UPGRADE FROM 4.1 to 4.2

UPGRADE-4.3.md - UPGRADE FROM 4.2 to 4.3

UPGRADE-4.4.md - UPGRADE FROM 4.3 to 4.4

Hope this helps.