I replaced the Plasma 4.11 on my Archlinux laptop with Plasma 5.1, which is now available in the repositories thanks to Andrea Scarpino \o/

I configured it mostly the same way I had Plasma 4 (which was very easy, BTW), but then reconfigured it to look mostly as the default Plasma 5, for this screenshot xD

I haven't used it much yet, but it works pretty nicely. The only real issue I had with it, was not really with it. I had to disable the DRI in the driver of the Intel card, because this driver has been having issues with OpenGL lately, in my card. It's a really old laptop, so issues are to be expected. Due to this, compositing is disabled, so no desktop effects, so it looks uglier than it should, but still... =)

Kudos to the KDE team for their great job, and to Andrea and the Archlinux team for making it available!