The eight Release Candidate and fourth Zipped Release is here.
New features include the hold-piece feature, a reworked data structuring for the draw and collision routines, and a settings file for quicker startup.
Compatibility with windows-curses should still work, please report any bugs if my hunch is incorrect.
As always, to play, simply extract all .py and the one .json file into a common folder and run python cursatetra.py in a shell window of your choice.