The last commit for branch 0.01 in the source history is dated Sep 7.

The press release mentioning V0.1 was dated Jul 27.

The email from Randolph asking list members whether the software on the press release was any good, was dated Jul 26.

The last commit for branch 0.x was dated Jul 26.

So branch 0.x is a better candidate here.

Still a qt project.