5.67.1

(fix): Fix --version AUTO leaking the literal “AUTO” string into self-hosted generated SDKs. Both the IR version field (which drives the User-Agent header and X-Fern-SDK-Version) and the IR publishing config (which drives package.json and version.ts) now use the language-mapped magic version placeholder (“0.0.0-fern-placeholder”) instead of the raw “AUTO” version, so these fields are stamped with the computed version after post-generation replacement rather than “AUTO”.

5.67.0

(feat): Custom MDX components (experimental.mdx-components) can now import third-party libraries. The CLI bundles component files with rolldown (via npx) at docs build time, inlining dependencies resolved from the docs project’s node_modules.

5.66.1

(fix): Validate that a docs instance’s url and custom-domain share the same basepath for all sites, not just basepath-aware ones. Navigation links and redirects are generated relative to the basepath, so the CLI now fails with a clear error when they differ.