All, I have been running 5.1 on my 2015 21" iMac for the last week or so. It has been mostly solid and I have to admit I really love the os and am looking forward to the release of version 6. I have had a couple of problems I'm exploring but my basic question is are there known issues with e-os and Mac hardware? I'd like to keep using my iMac with e-os. Thanks!!