asciidoc v10.2.0-1 has been uploaded to the Cygwin distribution servers, and should be coming soon to a mirror near you.
Quoting the upstream project description at https://asciidoc-py.github.io > AsciiDoc.py is a legacy processor for this syntax, handling an older > rendition of AsciiDoc. As such, this will not properly handle the > current AsciiDoc specification. It is suggested that unless you > specifically require the AsciiDoc.py toolchain, you should find a > processor that handles the modern AsciiDoc syntax. (Currently I believe this package is the only AsciiDoc processor available as a Cygwin package.) This is an update to the latest upstream release. For the full changelog, please see https://asciidoc-py.github.io/CHANGELOG.html Enjoy! Adam