Is this based on Pd 0.43 ?
Seems to be a mix, its got the 0.43 Tcl, but the 0.42 header:
https://github.com/pd-l2ork/pd/blob/master/src/m_pd.h
.hc
Indeed, it is a mix. Some of our implementations (e.g. magicglass) got ported by Hans and some of upstream was backported. I feel like 0.43 Tcl code is not yet vetted enough for me to move in that direction (we're stuck in this in-between 0.42 and 0.43 version because a lot of time was spent squashing serious bugs, many of which appear to be present in the 0.43 branch). That said, pd-l2ork has close to 200 features and bugfixes that are unique to it. For more info, please see the Changelog.
http://l2ork.music.vt.edu/data/pd/Changelog
Best wishes,
Ico