> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt.

## 1.41.0

**`(feat):`** Add a `With<AuthToken>Func` option for bearer auth that accepts a `func() (string, error)` callable.
The callable is evaluated at request time when no static token is set, matching the callable
auth behavior available in the Python and TypeScript SDK generators.

## 1.40.4

**`(chore):`** Bump the Go SDK and Go model generator containers' Node base image from
`node:22.22-alpine3.23` to `node:24.15-alpine3.23`. Aligns the generators
with the rest of the Fern generator containers on a single Node major
version (Node 24) and picks up Node 24's CVE patches. The existing
`npm pack <pkg>@latest` loop that swaps in patched `ip-address`,
`brace-expansion`, and `picomatch` is retained because `npm pack @latest`
continues to resolve the same fixed releases on Node 24.