This build adds support for AMD Radeon R Series. Besides the support for R Series, it’s still based on RadeonPro 1.x so there’s no improvements compared to 13/Mar build.
Download it from here: http://downloads.radeonpro.info/RadeonPro_Preview_R.exe
Please leave feedback in comments. This build will replace the standard download file when I get enough feedback from users.
Updated 11/4: the previous build carried a small cosmetic bug, showing “Post-processing is not available” when the SweetFX key is pressed but despite that message, SweetFx effects were being applied. Download the installer again from the link above and the message will vanish.