so much work, so many issues fixed and improvements made...but we're not yet ready for 2.3.0.
all the abi3 renaming is now complete. old functions are marked deprecated; migration to the new ones ought be wholly mechanical, usually simply a matter of adding an nc prefix to cell or channel. palette256 changes to ncpalette. that's about it.
two new stats have been added for tracking sprixel emissions and elisions.