Today's build is what we call an experimental build; future support is not yet guaranteed. Your adoption and feedback will help us determine if this is something we can sustain alongside our Mac and Windows builds.
Today's build is based off Unity 5.1.0f3 and comes with the ability to export to the following runtimes:
We've created a new section of the forums for you to provide feedback and report issues. That's the primary place where we'll be communicating with our users who are using the Linux build, so be sure to check it out. Crashes of the editor will pop up the bug reporter, which we encourage you to use in that case (because we'll get the stacktrace).
That's all for now. You can find the downloads here:
Read more about the release notes and known issues in our forum post.
Much love from Unity