Log in with your account, pick your brain folder, and sync it to the
latest engine — in place, keeping all your data. Sync only; no download.
Use Chrome or Edge
Updating syncs new engine files directly into your folder, which needs
the File System Access API — available in Chrome, Edge, Brave, or Opera. Open this
page there to update. (There's no raw download — updates apply in place.)
Sign in
Your brain folder
Pick the folder that contains CLAUDE.md — your Ultraultima root.