Google: NotebookLM now supports automatic sync with Google Drive

Google is rolling out automatic Google Drive sync for NotebookLM, so changes in Docs, Sheets, and Slides now update notebook sources automatically.

The feature also tracks permission changes and deletions: files you lose access to will still appear in the source list, and deleted files are removed from the notebook.

This reduces stale references and manual re-uploading for both Google Workspace and personal users, keeping NotebookLM sources current.