This is the first stable release of Subvertise.
Checkout the readme for more information.
Linux
You'll want to download and run the attached subvertise-1.1.2-x86_64.AppImage.
Windows
You'll want to download and run the attached subvertise.Setup.1.1.2.exe.
Npm
Alternatively, you can download the source code and run npm install and npm start if you have nodejs 6+ on your system.