There are upgrade manuals posted on https://doc.4d.com which outline the required procedures for converting older versions of 4D to newer versions. These manuals are not accumulative. So if a user wants to convert to the newest version of 4D the procedures mentioned in the manuals of all the previous versions of 4D need to be followed.

For example in order to convert 4D database from v2004 to v13, the procedures mentioned in the upgrade manuals of v13, v12 and v11 must be followed.