How do I update my OS X El Captain 10.11.6 to newer version please
How do I update my OS X El Captain 10.11.6 to a higher version please
iMac 21.5″, OS X 10.11
Back up your data, check your applications for compatibility, and depending on which iMac model you have, click on High Sierra, Mojave, Catalina, Big Sur, or Monterey.
Catalina and newer won't run 32-bit software; download and use Go64 to scan for it. To check other programs, click here and look them up.
(214000)