I cannot fetch my past chats after upgrading Cursor. The error in Developer Tools says [composer] No composer data handle found [handleDeselectingComposer]
Steps to Reproduce
Upgrade Cursor
Load past chats
Loading chat for a while but then an empty chat shows up, with no content.
Expected Behavior
Past chats show up.
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Hey, unfortunately, this suggests that your chat history may have been corrupted or deleted in the process of an update.
While we never intend to delete your chat history, certain factors like low system storage can cause this issue - the team are aware and are working hard to improve stability here.
My main recommendation here would be to not use chat threads as a way of storing codebase knowledge that you’d like to reuse.
LLMs can only see so much context in one go, and often degrade in performance if given too much input, so it’s best to keep your chat threads short and on topic.
While not an official recommendation, some users have reported success with the SpecStory extension, which attempts to read the chat history directly out of Cursor’s internal storage.