Sierra to Catalina system upgrade?
Hello,
How can I upgrade from Sierra OS10.12.6 to Catalina 10.15.0? Apple says you can, but I don't see 10.15.0 anywhere ???
iMac 21.5″, macOS 10.12
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evabirgit wrote:
Hello,
How can I upgrade from Sierra OS10.12.6 to Catalina 10.15.0? Apple says you can, but I don't see 10.15.0 anywhere ???
Big Sur macOS 11.2
https://support.apple.com/macos
How to upgrade to macOS Big Sur w/tech specs
https://support.apple.com/en-ca/HT201475
For your macOS 10.15.7 Catalina—
verify you are using the Safari browser to download/initiate the macOS links:
older macOS installer backups on this server:
https://support.apple.com/en-gb/HT211683