I need to update my macOS Catalina ver. 10.15.7 iMAC 27inch late 2013 but I can't
I work on Microsoft Word but I can't open new file ' request to update my system macOS Catalina version 10.15.7 to an new version like Big Sur.
iMac 27″, macOS 10.15
A late 2013 iMac cannot be upgraded beyond Catalina. Also see the following from Identify your iMac model - Apple Support
iMac (27-inch, Late 2013)
Model Identifier: iMac14,2
Part Number: ME086xx/A, ME088xx/A
Newest compatible operating system: macOS Catalina
