Bluesky launches Protocol Services with Jetstream v2, adding network replay and requiring an API token for archive reads

Sources: primary, discussion
Summary: Bluesky launched Protocol Services with Jetstream v2. Replay removes the need to backfill repositories locally before joining the live stream. Archive requests now require an API token, the first authentication requirement on the public Jetstream infrastructure, and the post states the live tail stays open and unauthenticated with no plans to change that.
Why it matters: Replay lets a consumer join the live stream without a local backfill, and archive reads now require an API token.