> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 1.61.0 **`(feat):`** Errors declared with a `4XX` or `5XX` wildcard status code are now decoded into their typed error struct for any status in the 400-499 / 500-599 range. A concrete status code declared alongside a wildcard always wins, and a body that fails to decode as the wildcard error's schema still returns the untyped `*core.APIError`.