2026-10-13 - production
21:23 <derenrich@deploy1003> derenrich, egardner: Backport for [[gerrit:1354852|Swap the preferred-sources experiment string to preferred-sources-ab]] (1.47.0-wmf.24), [[gerrit:1344343|CentralNotice: Exclude the preferred sources experiment from banners (T436692)]] synced to the testservers (see https://wikitech.wikimedia.org/wiki/Mwdebug). Changes can now be verified there. [production]