macOS Sierra Patch Tool
The MacOS Sierra Compatibility List | OSXDaily
PSA: macOS Sierra drops support for many Macs from 2007, 2008, and 2009 | Ars Technica
Mac OS X 10.6 Snow Leopard Shipping in September: $29 for Leopard Users - MacRumors
Identify your iMac model - Apple Support
Unibody MacBook Pro Mac OS X and Windows Compatibility: EveryMac.com
Apple MacBook Pro 2009 13" 2.26GHz 8GB 500GB macOS MONTEREY & El Capitan | eBay
How to install macOS or OS X on a new hard drive for your Mac
macOS Sierra | Low End Mac
Identify your MacBook Pro model - Apple Support
How to Install MacOS Catalina on Unsupported Macs | OSXDaily
GitHub - phimage/MacModelDump: Dump apple website to get mac model identifier and image url
Identify your Mac Pro model - Apple Support
macOS Sierra on MacBook late 2009 - YouTube
Mac OS X Snow Leopard - Wikipedia
I raise you my Macbook early 2009 on macOS 10.13.3 as my daily driver : r/ mac
Is there any humanly possible chance that my MacBook 2009 could get Ventura for unsupported macs? : r/MacOS
Mac OS X El Capitan (10.11) BETA - Late 2009 Unibody Macbook! - YouTube
