The next release AsciiDoc3-3.1.0 will be more than just a bugfix:
requires Python 3.4 or higher: 3.3 and below have reached end of live,
(and 3.4 will in a few weeks),
therefore 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.
The biggest thing for the user: there will be a PyPI distribution not only for GNU/Linux and POSIX, but
for Windows, too!
AsciiDoc3-3.1.0 is scheduled for the end of Feb '19.