Version 4.0ΒΆ
Due to version 4.0 of mod_wsgi being in development for so long, or not in development depending on how you want to look at it, and the confusion that might be caused by releasing what was sitting in the source code repository after so long, the version 4.0 moniker has been dropped. The next version after the 3.X series will therefore be version 4.1.0. With the introduction of version 4.1.0, a switch is also being made to a X.Y.Z version numbering scheme, in place of the existing X.Y version numbering scheme.