Please update Wix Bin to latest release!

Jan 24 at 9:04 AM
Now it is WiX v3.10.3 (Stable). It was released in the summer of 2016.
Coordinator
Jan 25 at 1:54 AM
Done in v1.3.0. https://github.com/oleg-shilo/wixsharp/releases

Wix# release package includes WiX binaries of the version that Wix# was tested against and it is not always the latest WiX release.

Please note that you can always install any version of WiX on your system and Wix# will find it in the %PROGRAMFILES% unless you have Wix# compilers configured to use an alternative WiW release.