> "misc: scanner-> when autosavefixdat is enabled and no fixdatname is set yet,
> the default fixdatfolder is used and no prompt appears"
>
> i thought it did this already, was this done before but is now being reported?


No. It only didn't prompt for a filename when you already specified one. If you used a new profile it always asked you for a place to store.



> "misc: profiler-> removed prompt about a successfully updated datfile"
>
> again, this was already in previous version, I checked 3.64a and I got no prompt
> after dat update

It wasn't in an earlier version. When you selected the "update" button when an update datfile was found, you always got a "datfile updated successfully".



> "misc: profiler-> profileupdate check doesn't update dats with no name
> headerentry anymore"
>
> how this is helpfull?


Easy answer: If you use datfiles without headerentries, the update routine might have chosen a wrong one to update since there was no sign of what to update.

> "misc: general-> backup and backup/_unknown folders are automatically used as

> please tell me what changed between "remove rebuilt source" and addpaths in
> rebuilder in this version?

The backupfolder is automatically internally added as an addpath for scanner and rebuilder. If you select the rebuilder "use addpath" option instead of a single sourcefolder, you better not forget that an optional enabled "remove rebuilt sourcefiles" will remove files from the backupfolder if something matches and is rebuilt.

Roman Scherzer
ClrMamePro