It's a wxWidgets based application meant to replace the defunct Dev-C++. Personally I don't think it will go anywhere - development cycles are being exceedingly long and currently there's important functionality still missing like, for instance, a proper debugger interface.
It's no match to CodeBlocks which is a much more stable release, actively being developed and maintained and also built around the wxWidget library.
Meanwhile, the alleged "supports wxWidgets" is marketing buff. wxWidget is a C++ library. While there may be built-in GUI functionality that may help speed the development process of a wxWidgets based application, fact is "support" is on this case an attribute of the compiler not the IDE. And wxDevC++ is far from providing a proper GUI interface to wxWidgets since it can't even match wxWidgets own release cycles.
Just get CodeBlocks.