So yeah it is a new even more optimized version. Contains all presets from https://wonderwhy-er.deviantart.com/art/Collision-study-5-151631461 + 2x version of Tetro to show how much faster it become. On my home gaming desktop it manages 10k balls with 30FPS :omg:

If you are wondering why it is 8 version and and where are version 6 and 7. Well those were some tests and tweaks that did not prove to be useful. So here is 8. If you want to learn more then here is journal telling how this version came to be
https://wonderwhy-er.deviantart.com/journal/34493497/