The new Krita 4.0.0 pre-alpha.

The Krita team comes with unique ways for pre-alpha versions.
The new Krita 4.0.0 is under development , but you can test it.
You can test the krita-4.0.0-prealpha.1-x64 version from official website and read the full article of this pre-alpha version.
This is the only demo video found on the web with version 4.0.0 created by eugening .