How to update macOS version 10.11.1 to 11.5 ?

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chetanshil Author

Level 1

4 points

How to update macOS version 10.11.1 to 11.5 ?

I have macbook6,1 uj898, 13 inch, 2009. I want to update os version 10.11.1 to 11.5

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Posted on May 21, 2024 8:07 AM

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Answer 1

FoxFifth

Level 10

469,575 points

May 21, 2024 8:15 AM in response to chetanshil

A MacBook 6,1 cannot be updated beyond macOS 10.13.6. See the following from Identify your MacBook model - Apple Support

MacBook (13-inch, Late 2009)

Model Identifier: MacBook6,1

Part Numbers: MC207xx/A

Newest compatible operating system: macOS High Sierra 10.13.6

To upgrade, be sure to have a backup and see instructions in: How to download and install macOS - Apple Support

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Answer 2

May 21, 2024 10:55 PM in response to chetanshil

If you update from El Capitan to High Sierra, you may want to install FireFox 115 ESR. It doesn't get new features any more, and Mozilla won't provide critical security updates for it after September 2024. Still, it may get critical security updates for a few months. El Capitan's version of Firefox stopped getting them back in late 2021.

https://support.mozilla.org/en-US/kb/firefox-users-macos-1012-1013-1014-moving-to-extended-support

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