Dear Miller, please consider checking and merging my documentations branch - https://github.com/pure-data/pure-data/pull/1856 . There aren't that many new things since the last release and I have already fixed issues regarding the new multichannel stuff, like Pd not being able to load the help file of pack~/unpack~ if called from [unpack~] - https://github.com/pure-data/pddp/issues/130 - and added a multichannel example to [send~]/[receive~]. I also revised a few things. Please check and revise yourself.
I still didn't change the documentation of [inlet] to include a multichannel example but it's the next thing on my list, so you may wanna wait for that and this is just a heads up. We can take a bit more time on [clone], before we rename flags and see what new things it might do or not.
Cheers