Hello Kirk,
I thought so too.
The database (cat_state.sq3) was not deleted, it has a creation date of 2021, well before the update.
The cat_state.sq3-wal and cat_state.sq3-shm files, however, were recreated today.
Also all files in the dyn folder are new.
Accordingly, all files were deleted, with the exception of the database file cat_state.sq3 itself.
Thomas