At last, today the new AsciiDoc3-3.1.0 is out!
requires Python 3.4 or higher (3.4 will run even though it has reached end of live),
this release takes advantage of some changes in the language established since 3.4,
these changes make AsciiDoc3 a little bit faster,
and more secure.
Asap: there will be a PyPI distribution not only for GNU/Linux and POSIX, but for Windows, too!