Article taken from GamingOnLinux.com.

In another push towards Mesa finishing OpenGL for all vendors where possible, Intel Haswell chips now have support for OpenGL 4.5 with Mesa on Linux. It comes as of this commit to the mesa-dev list.Pretty awesome work, in the space of ~2 weeks Haswell went from OpenGL 4.0 right up to 4.5.Intel HD/Iris graphics aren't exactly the best for gaming, but it's good to know that people stuck with the integrated graphics at least get the chance to try more out.You can see a list of Haswell processors on Wikipedia here . If you're unsure if yours is or not, you can take a look there.Looks like Mesa 17, the next stable release, is going to be really quite awesome.