ARM release, as well as x86_64 release. No x86 (32 bits) release, you should compile it yourself if you need it.
Lots of new options. Refer to the README.md in the main repo page for documentation. You'll need to launch the tool once, it will display a dialog, then exit. Open and edit the config.json file revealed, and then run the RoxxorTool.exe corresponding to your processor architecture.