OS X version update

chinHL wrote:

I am using MacBook Pro and right now the OS X version is 10.9.5, how to update to latest version 10.11 or above ?

Does your hardware qualify...?

How to upgrade to macOS Big Sur w/tech specs

https://support.apple.com/en-ca/HT201475

older macOS installer backups on this server:

https://support.apple.com/en-gb/HT211683

verify you are using the Safari browser to download/initiate the macOS links.

You can only update to the latest revision of the same major version.

To change major versions requires an UPGRADE, which feels like a new purchase, but luckily is on sale for $0.

Use the links in this article to download and install 10.11 El Capitan. Because it includes an Improved Mac App Store, It is recommended a waypoint to install later versions, if you wish to do that later.

How to get old versions of macOS - Apple Support

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