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## 5.76.0

**`(feat):`** Support webhook signature verification against multiple normalized notification URL
forms via `url-normalization` (port variants and legacy query encoding) on HMAC webhook
signatures, in both Fern Definition and OpenAPI (`x-fern-webhook-signature`).

## 5.75.9

**`(fix):`** Fix multi-API environment grouping (`group-multi-api-environments`) when a spec's
environment URLs differ by a dot-separated host segment (e.g. `api.stage.acme.com`):
the per-API URL key is now derived once per spec instead of per server, so all
environments share a consistent set of URL keys. Grouped environments also keep
their original user-facing names (e.g. `Production`) instead of normalized
matching keys (e.g. `PRD`).

## 5.75.8

**`(fix):`** Fix multi-API environment grouping (`group-multi-api-environments`) when a spec's
environment URLs differ by a dot-separated host segment (e.g. `api.stage.acme.com`):
the per-API URL key is now derived once per spec instead of per server, so all
environments share a consistent set of URL keys. Grouped environments also keep
their original user-facing names (e.g. `Production`) instead of normalized
matching keys (e.g. `PRD`).

## 5.75.7

**`(fix):`** Bump @fern-api/generator-cli to 0.9.52. Under `--version AUTO`, the AI-authored
`changelog.md` no longer reports routine version bumps (e.g. the `User-Agent` /
`X-Fern-SDK-Version` headers) as changed or removed, and the Go `/vN` module suffix
is retained in the `X-Fern-SDK-Name` header value and README install/import samples.