how to update from high sierra
how can i update from high sierra version 10.13.6
Back up your data, check the application compatibility table, click here, and if your Mac is a 2012 or newer model, or a 2010 desktop Mac Pro upgraded with a Metal-capable graphics card, then on the download link for a more-recent OS.
Catalina and higher won't run 32-bit software; if you choose one of them, use Go64 as well.
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