is there a higher update to High Sierra 10.13.6 or is that it?
is there a higher update to High Sierra 10.13.6 or is that it?
iMac, macOS 10.13
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That's the last version of High Sierra, and the last OS release compatible with late 2009 through 2011 iMacs. Newer ones can be upgraded to Catalina or Big Sur.
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