Looks like a dev build of the 1.1 release
I do have FreeCAD Ribbon addon, but I think the rest is as is. Indeed, it is the development version and it is stable, but I'll probably switch to 1.1 stable once it is released, just so that I automatically get the package from my distro.
...which is Arch, by the way :D
I've had bad experiences on the latter, as in a lot of breakage occurred :/.