If AUTOUPGRADE is set ON, connecting to a database will automatically convert R:BASE databases to the current database format. If AUTOUPGRADE is set OFF, an error will occur when connecting to a database that needs to be converted. This command functions the same as SET AUTOCONVERT ON in R:BASE 6.5++.
No matter what the AUTOCONVERT or AUTOUPGRADE settings are in R:BASE 6.5++ the earliest version that can be converted by this method is an R:BASE 4.5 database.