Problem/Motivation
In the Drupal 9 cycle we upgraded our underlying dependencies to Symfony 4.4. We have a few pieces of compatibility code that deal with changes made during the development of Symfony 4.
Proposed resolution
Remove the compatibility code as we depend on Symfony 4.4+ now.
Remaining tasks
Identify all the code and remove it.
Comments
Comment #2
catchComment #3
longwaveThere are no child issues remaining. We should do a final scan of the code using grep or similar to try and find remaining references to Symfony versions earlier than 4.4, and close this issue if none are found.
Comment #4
andypostAdded one more child issue #3156126: Make MissingContentEvent extend non-deprecated event class
Comment #7
gábor hojtsy#2937010: Bring ContainerBuilder inline with Symfony Container and apply upstream improvements was added as a new children, so this still has outstanding work to do :)
Comment #11
andypostLooks like all child tasks are done
Comment #12
catchYes I think we can close this now.