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## 3.82.0

**`(feat):`** Add webhook signature verification configuration to the IR. Webhooks can now
specify a `signature` block (in Fern Definition) or `x-fern-webhook-signature`
extension (in OpenAPI) with algorithm, encoding, header name, and payload format.
SDK generators can use this to produce signature verification utilities.

**`(feat):`** Add `terminator` field support for SSE streaming throughout the OpenAPI to Fern pipeline.
The field was already present in the Fern definition schema but missing from the OpenAPI
extension parsing, OpenAPI-IR schema, and the OpenAPI-IR to Fern conversion layers.

## 3.81.1

**`(fix):`** Fix example object keys starting with `$` (e.g. `$ref`) not being unescaped when
generating the IR `jsonExample`. The Fern definition escapes `$`-prefixed keys with
a backslash to avoid collision with example references, but the backslash was not
removed when building the wire-format JSON example, causing generators to emit
invalid code (e.g. `"\$ref"` in Go).

## 3.81.0

**`(feat):`** Add `--skip-autorelease-disabled` flag to `fern generator upgrade`. When passed,
generators with `autorelease: false` in their configuration are skipped during
the upgrade. Skipped generators are reported in the output summary.