Will FullRecord work with FileManager?

Will FullRecord work with FileManager2 (or FileManager3) from Capesoft? How does it handle changing file structures?

Yes, it works with FM without problem, as far as compatibility. However FM don't act inside the records stored in the Audit file.

The record structure is not stored inside the audit file, just the data, and the template relies on the current dct structure to recover the information. It is mentioned in "Changing Record Layout" in the "Extension Templates" chapter, but in short, if you add fields to the end of the record structure then no changes are needed, but if you change field types or layout information, you should change the information in the audit file as well, with a process that reads the old information and resave it with the new layout. There is an extension template provided so you don't have to code, and detailed instructions on a simple way to do it in the mentioned chapter.