ZT 2.0 Dev Branch?

The dev branch for ZT 2.0 (named tetanus with a meme in the README iirc) was available on GitHub awhile ago, but it isn’t around anymore. Was the branch renamed? Where can I go to find the source code for ZT 2.0?

In addition, is there any list/tracking for what 2.0 will bring over 1.x.x?