What Linux distro do you use with chdkptp?
windows is the primary development platform. I also make builds and test on ubuntu and raspbian.
Are you continuing to develop chdkptp?
Yes, although I am currently very busy with real work, so am not doing much with chdk or chdkptp.
If yes is there an ~ time frame for the next release?
No, there is absolutely no schedule. I release "snapshot" builds when significant features are completed or bugs fixed.
Eventually, there may be an actual formal release.