It has been 10 business days since the release of High Sierra and there is no mention of it on your website.
If 10% of our users upgraded weekly - then we would have 60 or so computers without antivirus protection going into next week, this is not acceptable. Note - we do have several macs that are on lockdown due to other vendors that also lag in Apple support.
I would like to see a graph of OSX release dates along with SEP release dates to see if Symantec is getting better at the updates or worse.