A database can be opened in read-only mode. The database therefore remains frozen and no changes can be entered. Switching between read-only and read + write can be done very quickly and easily by a new menu choice.
Initialization of the database is now carried out more subtly, so that many small changes to the DB are no longer necessary. The file therefore remains more stable and that is nice if the file is saved in version management.
Version management interface gives better notification of the actions being executed.