Just released it... There are many changes:
The debugger does not print its tracing anymore, plus some problems with the jython shell and other bugfixes.
The actual 'feature' for this release is that the interpreter configuration will be backwards compatible from now on, but this has a drawback in the release, meaning that the current interpreter configuration will be lost.
Actually, I had to work on its structure and it became backward-incompatible, so, I decided that it's about time that it does not change anymore, even if its internal structure changes, and put it as a feature... actually, it just stores the information that the user enters in a place separated from the actual structure, which will be re-created with that info if it is not able to recreate by itself.