From the developer's website <http://www.bresink.de/osx/0TinkerTool/history.html>:

Release 3.7a (Build 070602)

This new build of version 3.7 reinstates the Japanese language package and corrects some typos in the French user interface. In all other aspects the application is identical to version 3.7. Users of 3.7 only need to upgrade if they like to use the software in French or Japanese.