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## 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.