Updating computer
Can I update my 2013 27"mac osx operating catalina 10.15.7 to Mac Sur ?
iMac 27″, macOS 10.15
Question marked as
no.
macOS Big Sur is compatible with the following computers. If your Mac isn't compatible, you might be able to install an old version of macOS instead.
MacBook introduced in 2015 or later
MacBook Air introduced in 2013 or later
MacBook Pro introduced in late 2013 or later
Mac mini introduced in 2014 or later
iMac introduced in 2014 or later
iMac Pro
Mac Pro introduced in 2013 or later