I'm running Mathematica 11 Home Edition on 64-bit Ubuntu 16.04 LTS on an Intel i5 processor. I'm pretty sure I'm still running the old version as it remembered all of my recent files and didn't ask for the license key the first time I launched Mathematica after running the script to install the updated version. Help->About Mathematica still indicates the following.
Version Number: 11.0.0.0
Platform: Linux x86 (64-bit)