I am forced to upgrade to Glass

Hey, this is expected behavior. The Update Access - Default setting means you’ll automatically update to the latest stable version, not stay pinned to a specific one. Glass v2.7.0 is rolling out to the stable channel right now, so you’re getting the update.

A few options:

  1. File > New Window should open a standard IDE window.
  2. Run cursor --classic in a terminal to open the classic UI without Glass.
  3. If you want to disable auto-updates completely, go to Settings Cmd+, and set update.mode to "none".

This issue was also discussed here: Unable to revert back to non glass version of Cursor