Changelog

Fixed

• Corrected x-ratelimit-remaining accounting on the server-assigned publish path, which could under-report by one under concurrent writes.
• A rare TLS session resumption edge case on the edge that could delay the first byte of a subscribe response by up to a second.
• Documentation: the sequence window limit is 1024, not 1000 as an earlier version of the publishing guide stated.

Fixed

• SSE keepalive comment could be omitted for up to 30 seconds on streams that had just evicted a large batch; the timer is now reset correctly after eviction.
• DELETE on an already-deleted stream now returns 404 consistently instead of an occasional 204.

Added

• Idempotency keys for the server-assigned publish path via an optional Idempotency-Key header, so /publish retries can be made safe without switching to explicit sequences.
• x-runnev-cursor is now echoed on every publish response, including duplicates, so clients can advance state without reading the body.

Changed

• The list endpoint's default limit is now 20 (was 25) to match the documented pagination convention.

Fixed

• Python SDK 1.5.3: the subscribe generator could raise on a socket read timeout during a legitimately idle stream; the read timeout is now set above the keepalive interval and a missed keepalive triggers reconnect instead.
• Corrected Retry-After to be an integer number of seconds on all 429 responses.

Added

• Per-stream retention policies: max_bytes is now configurable at creation alongside retention_seconds, and both bounds are enforced independently.
• GET /v1/streams/{id}/cursor for cheap cursor polling without opening a subscription.

Changed

• Default max_bytes raised to 256 MiB from 128 MiB.

Fixed

• Go SDK v1.4.2: removed a blanket Client.Timeout that severed healthy subscribe connections; the subscribe path now sets only ResponseHeaderTimeout.
• HTTP/3 responses omitted x-request-id on the health endpoint.

Added

• Official Go SDK, github.com/runnev/runnev-go.
• HTTP/3 on the edge for all endpoints.

Changed

• Subscribe responses now include x-accel-buffering: no unconditionally after we found an nginx in a customer path buffering batches.

Fixed

• Base64 padding on raw batches delivered over SSE could be truncated for payloads whose length was not a multiple of three.

Added

• Official Python SDK, runnev.
• Last-Event-ID request header is now honoured on reconnect, so the browser's native EventSource resumes correctly.

Added

• Cursor resume and single-batch replay via GET /v1/streams/{id}/batches/{seq}.
• ?cursor= on subscribe accepts head, 0, or any sequence.

Added

• Raw binary batch mode: streams created with "mode":"raw" accept application/octet-stream and are stored verbatim.

Changed

• Publish body limit raised to 8 MiB from 4 MiB.

Added

• Public launch. Streams, explicit-sequence and server-assigned publishing, SSE subscribe, retention by time, and the JavaScript SDK.