Custom llms-full.txt files are deprecated
Fern no longer generates llms-full.txt, and the llms-full-txt configuration in docs.yml is deprecated. Concatenating an entire site into one file exceeded most model context windows, added heavy serving overhead, and saw little use next to llms.txt combined with per-page Markdown.
Use llms.txt to discover page URLs and fetch individual pages via their .md URLs.
To serve a custom llms.txt, see Serve custom files.
API catalog respects site authentication and RBAC
The /.well-known/api-catalog endpoint now mirrors what the viewer can see. Sites with authentication configured return an empty catalog to unauthenticated requests, and API references hidden through role-based access control no longer appear in the catalog.