3 backports to do

master	10.4	9.5
Merged #67227 [TASK] Make first install compatible with PHP 8 Author Benjamin Franzke Updated 01/04/21, 09:26 Affected Files 7 Patchsets 10 Reviews 3 Verifies 3	#67296 [TASK] Make first install compatible with PHP 8 10.4 Author Jörn Wagner Updated 01/05/21, 11:16 Affected Files 7 Patchsets 1 Reviews 1 Verifies 1
Merged #68072 [BUGFIX] Revert "Recognize removed columns on PostgreSQL" Author Benni Mack Updated 02/23/21, 07:43 Affected Files 2 Patchsets 2 Reviews 3 Verifies 3	Review is missing.
Merged #68169 [TASK] Update XLIFF version to 1.2 Author Georg Ringer Updated 03/24/21, 19:14 Affected Files 184 Patchsets 7 Reviews 4 Verifies 5	#68676 [TASK] Update XLIFF version to 1.2 10.4 Author Georg Ringer Updated 04/07/21, 20:52 Affected Files 179 Patchsets 6 Reviews 1 Verifies 2