Hi Martin,
You are really attentive!
Firstly, the current version was 6.3.2.2, it's just that yesterday we realised that is says 6.3.2.1 on the web site, so had to correct it.
Secondly, we are making some slightest changes to the code, but only in order to remove some very specific problems that may occur if you run a specific trigger action or use MF Pro in connection with Excel and put there a specific formula.
As this does not count as a full-blown update, we did not make any announcements. It's up to you whether to download it now or wait till the official update.