Developers Blog: http://bartongeorge.net/2015/04/09/4th-gen-dell-xps-13-devel...
" Interestingly, the blog post also includes details on testing that the company has done with various other Linux distros on the XPS-13, including Fedora and Debian. [...] this time around Dell has provided quick run-downs on how to get the XPS-13 working with a few alternate distros—including recommendations for kernel choices and BIOS revisions to load. "
I'm really happy Dell decided to continue down this route. They make good hardware (I love my XPS12) and their Linux support is slowly becomming best-in-class.