Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Cross-Session ControlArea: what it touches
Internal ChangesKind: in v2.1.234,
Internal ChangesSection of the release
What
Cross-session notices no longer ack on a best-effort flush. A new confirmed flush reports whether the delivery record actually landed, and if the upload was dropped the ack is skipped and the notice retried rather than being marked delivered.
Details
The uploader now counts batches dropped after a 4xx response and exposes that count, which is how the confirmed flush knows whether anything was lost.
The retry path is recorded as delivery_record_dropped_will_retry.
Evidence
delivery_record_dropped_will_retry
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
