Given a SMART backup, is there any way to tell which version of SMART it was exported from?

There is no really simple way to do this. The only way to do it would be to unzip the file, use a tool (squirrelsql, dbeaver) to connect directly to the database (smartdb folder), and then look at the appropriate version tables in the database. This will give you the version of the database for each of the plugins from which you can guess the SMART version but it doesn’t actually give you the exact SMART version.

In the future, we may include SMART version as a text file with the backup file. Please let us know if this will be valuable