I am referring to this message from the GIMP TEAM:
With the debugging system in place to detect a crash, it was easy enough to add crash recovery. In case of a crash, GIMP will now attempt to backup all images with unsaved changes, then suggest to reopen them the next time you start the application.
GIMP debug files have been removed to save install space. They can be copied from a local 32-bit install for debugging purposes.