I di the upgrade several days ago and have since had three kernel panics that seem to be caused by ESET. I turned it all off the time before the last one and instill crashed. I have since completely turned it off and killed every process I could find. I will wait and see if that fixes the problem. OK, did as several others and reverted to V5.x and so far so good. I also submitted a report with an excerpt of the relevant portion of the crash log. It will be interesting to see how long it takes them to get back with me.