[InclinedPlane]

It's fine as long as you keep consistent naming. Calling 3.7 version 4 is dumb, if you're going to call it 4 then bump up the version number, if you're not going to bump up the version number until later then stop calling it 4.

[tiles]

They're calling it 4. This isn't the official beta. The 3.7 are just old executables lingering in the FTP folder.