Bluesky has launched Bluesky Protocol Services, a new brand and website for the public infrastructure built on the AT Protocol. This initiative clarifies service contracts and organizes developer documentation for services like Jetstream instances, relays, and API endpoints.

The headline release is Jetstream v2, which introduces 'Network Replay.' This feature allows developers to access historical data from the network alongside the live stream, enabling them to catch up from any point in the past without manual backfilling. Users can POST filters to plan a snapshot, download compressed archive segments, and then connect to the live WebSocket feed.

Jetstream v2 also offers a 'snapshot' option for point-in-time copies of the archive without a live feed, facilitating sophisticated server-side slicing. Accessing these archives now requires an API token for reliability, while the live stream remains unauthenticated. New TypeScript and Go SDKs are also available to simplify working with Jetstream, and the Bluesky TypeScript SDK has been rebuilt on top of @atproto/lex for improved type safety and reduced legacy code.