Ok, you can start breathing again
Well, I think the current version in the development branch "is it".
What we didn't take is the idea of being able to add further blocks at the end.
Christoph doesn't like to have such an unstandard extension.
Well, this of course has two sides, as nearly everything.
But: thanks for your valuable additions and the test data!
I couldn't add you to notices.txt, but only because you are already listed as
contributor
If I can find the necessary time for some cleanup in some other area of the library
this should get released as V6.5 along with the other things which got added since V6.4.x.