2026-02-23 - production
10:59 <urbanecm@deploy2002> urbanecm: Backport for [[gerrit:1242298|cleanup: Remove unused code]], [[gerrit:1242295|Validate mentor list using a JSON schema (T417422)]], [[gerrit:1242296|Temporarily switch mentor list validation to legacy validator (T417422)]] synced to the testservers (see https://wikitech.wikimedia.org/wiki/Mwdebug). Changes can now be verified there. [production]