5.21.1

(chore): Bump IR to 67.2.0 to publish the optional resumable field added to SseStreamChunk in PR #15795. Without the IR version bump, no new @fern-fern/ir-sdk minor was published and the field stayed invisible to downstream consumers.

5.21.0

(feat): Add a new resumable sub-property to the x-fern-streaming OpenAPI extension (and a corresponding resumable field on Fern Definition response-stream blocks). When set on an SSE endpoint, the IR carries resumable: true on the SSE chunk so generators can emit a client-side reconnect loop using standard SSE primitives (Last-Event-ID, retry:).

The flag is inheritable: setting x-fern-streaming.resumable: true at the OpenAPI document level applies to every SSE endpoint unless an operation overrides it (silent fallback). Defaults to false. The IR field is optional, so generators that don’t read it are unaffected.

5.20.1

(fix): Pass GitHub Enterprise host to Fiddle for remote generation so that self-hosted GHE instances are correctly targeted by the remote pipeline.