Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
AuthArea: what it touches
ImprovementsKind: in v2.1.248,
ImprovementsSection of the release
What
When a login token refresh cannot get its lock in time, the failure is now classified as oauth_refresh_lock_timeout rather than falling into the generic bucket, and it is logged the same way as auth errors and revoked tokens. Unconditional.
Evidence
oauth_refresh_lock_timeout
Strings lifted out of the shipped bundle, so the claim above can be checked against them.