Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Storage BackendArea: what it touches
In DevelopmentKind: in v2.1.223,
In DevelopmentSection of the release
A compare-and-swap retry helper and a namespace classifier exist, marking task, team and identity data as versioned; nothing user-facing calls it.
What
An internal helper read-modify-writes a storage key with ifMatch/ifAbsent preconditions and retries with backoff when the precondition fails, so concurrent writers do not clobber each other.
Details
retries on PreconditionFailed and AlreadyExists with backoff
refuses keys whose namespace is classified 'plain' (last-writer-wins) and returns an InvalidArgument error naming the offending argument
a new namespace-discipline classifier marks task, team, identity and plain globalConfig as versioned; settings, memory, cache, state, job and userConfigDir are plain
Evidence
casRetry arbitrates versioned keys only
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
