BIG SUR in Community support: ask the forum Posted December 17, 2020 On 16/12/2020 at 12:28, Colin Woods said: A very timely thread as I was wondering the same thing. I am still on High Sierra and am loath to change as it all buzzes along nicely. Are there any big advantages to upgrading or am I better sticking to HS? All techie advice welcomed, if not always understood. Colin, I haven't found anything of any use to me yet!!! It would appear to me to be an "incremental" upgrade from Catalina. There's always something useful for some people, but for me, not really. I use Adobe CC, Capture 1, Safari, Mail and Microsoft Office. They all look and work as they did with Catalina, High Sierra etc. Rich.