HIGH SIERRA DOWNLOAD
I have an iMac, Late 2012, 21.5” screen. I am now running Sierra and want to update to High Sierra. Where do I find the download these days. I have gone to the Apple App Store and there isn’t a download button on the link. I also would like to know if I can’t update to High Sierra, does Apple still update Sierra with tech and security updates? Thanking in advance for your help. Dennis
iMac Line (2012 and Later)