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## 3.36.1

**`(fix):`** Handle Optional access tokens and Long type compatibility in OAuth token supplier.
The generator now unwraps `Optional<String>` access tokens with `orElseThrow` and
uses `Long` literals for the default `expires_in` fallback value.

## 3.36.0

**`(feat):`** Add server URL templating support. When an OpenAPI spec uses server variables
(e.g., `https://api.{region}.{environment}.example.com`), the generated SDK now
exposes those variables as builder methods (e.g., `.region("us-east-1")`). The
`x-fern-default-url` extension provides a clean fallback URL when no variables
are provided. Supports both single and multiple base URL environments.