Upgrade from El Capitan 10.1 1 to a newer OS

Back up your data, check your applications for compatibility, click here, and then on the download link for High Sierra, Mojave, Catalina, or Big Sur in the Related Article above, or on Monterey.

Catalina and newer won't run 32-bit software; download and use Go64 as well as using the first link above.

(223906)

Hi, I think this Article can help you

Update macOS on Mac - Apple Support