2021-04-12 - releng
15:46 <Urbanecm> deployment-prep: Run `mwscript extensions/GrowthExperiments/maintenance/migrateMentorMenteeRelationship.php` on all beta wikis with GrowthExperiments installed (wikis that are both in all-labs and growthexperiments, plus enwiki; T279853) [releng]