Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Cloud SessionsArea: what it touches
Internal ChangesKind: in v2.1.248,
Internal ChangesSection of the release
What
Outbound push failures are classified more finely: route_refused is gone, route_unavailable and rejected are added, the HTTP status is attached to both the error and its detail text, and a lane-unavailable result now carries its underlying cause. An optional pre-upload callback is awaited first, with its errors ignored. No user-visible surface.
Evidence
await t.beforeUpload?.(J).catch(() => {});
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
