> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 1.5.0 **`(feat):`** Add support for service-level headers. **`(feat):`** Generate `snippet.json` file containing usage snippets for each endpoint. **`(feat):`** Apply the timeout configured on the `ClientOptions` and `RequestOptions` type. **`(feat):`** Add exponential backoff retrier, which acts upon `MaxRetries` configuration option specified on the `ClientOptions` and `RequestOptions`. **`(feat):`** Generate the `RawClientTests.cs` file which includes retry logic tests. **`(internal):`** Refactor the `RawClient` with additional helper methods so that it's easier to follow. **`(fix):`** Fix a bug where `OneOf` used directly as request or response types fail serialization.