update my Mac OS 10.13.6
cant watch Netflix. needed newest version of browser
iMac 21.5″ 4K, macOS 10.13
Back up your data, check the application compatibility table, click here, and then on the download link for a newer OS. Your computer can be upgraded at least as far as Monterey.
Catalina and above won't run 32-bit software and split the functions of iTunes up; if you choose one of them, use Go64 as well.
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