macOS High Sierra now available as a free update - Apple
macOS High Sierra Patcher
How well does MacOS High Sierra run on an unsupported Mac? - YouTube
Identify your MacBook Pro model - Apple Support (IE)
Preparing a 2009 MacBook for macOS Sierra - YouTube
How to Upgrade to macOS High Sierra
macOS 10.13, High Sierra MacBook Pro 2009 Released for sale | eBay
Apple macOS Sierra: how about that compatibility list? (2023)
macOS Sierra Compatible Macs and System Requirements: EveryMac.com
Install Sierra on Early 2009 Mac Pro - Apple Community
Identify your MacBook Pro model - Apple Support
macOS 10.13, High Sierra MacBook Pro 2009 Released for sale | eBay
15″ MacBook Pro (Mid 2009) | Low End Mac
Restored Apple Macbook Pro 13.3-inch (Retina) 2.7Ghz Dual Core i5 (Early 2015) MF839LL/A 128GB SSD 8 GB Memory 2560x1600 Display Mac OS X v10.12 Sierra Power Adapter Included (Refurbished) - Walmart.com
macOS Sierra on MacBook late 2009 - YouTube
macOS 10.12 Sierra Unsupported Macs Thread | MacRumors Forums
Identify your MacBook Pro model - Apple Support
MacBook Pro "Core 2 Duo" 2.66 15" (SD) Specs (Mid-2009 15", MB985LL/A, MacBookPro5,3, A1286, 2325*): EveryMac.com
The MacOS Sierra Compatibility List | OSXDaily
PSA: macOS Sierra drops support for many Macs from 2007, 2008, and 2009 | Ars Technica
MacBook Pro 2009 Upgrade Series PT.1 High Sierra Install - YouTube
macOS Sierra Patch Tool
macOS Sierra Download Released, Get it Now | OSXDaily
![Apple MacBook Pro (Mid 2009) 15" Core 2 Duo 2.8GHz 8GB RAM 250GB HDD | eBay](https://i.ebayimg.com/images/g/ip8AAOSwrY5hV4~S/s-l1200.webp "Apple MacBook Pro (Mid 2009) 15" Core 2 Duo 2.8GHz 8GB RAM 250GB HDD | eBay")