Introducing Bluesky Protocol Services
Bluesky’s Jetstream v2 adds stateless network replay: clients plan a filtered snapshot, download sealed archive segments over HTTP, then connect once to the live WebSocket at the tip without a gap. The same archive can provide point-in-time snapshots, while the live tail remains open and self-hosting stays supported.
The change turns backfill and recovery from a client-side cursor-management problem into a service-side replay protocol. HN readers highlighted how easy Jetstream already is to consume and discussed the implications for downstream services such as DNS.