1. Mac Pro 2.1 Yosemite

Introducing the new MacBook Air, 13‑inch MacBook Pro, and Mac mini, all with the Apple M1 chip.

1. I created a Yosemite boot USB, from the App Store version 10.10.1. When I hold option during Boot, the USB drive doesn't show up on the menu. I have an aluminium MBP, bought in 2009. It is the full body aluminium with the Superdrive. Per Apple, this is my machine: MacBook Pro (13-inch, Mid 2009).
2. OS X Yosemite (/ j oʊ ˈ s ɛ m ɪ t i / yoh-SEM-it-ee; version 10.10) is the eleventh major release of macOS, Apple Inc.' S desktop and server operating system for Macintosh computers. OS X Yosemite was announced and released to developers on June 2, 2014, at WWDC 2014 and released to public beta testers on July 24, 2014.
3. Announcing the new iPhone 11 Pro, iPhone 11, Apple Watch Series 5, and iPad. WWDC June 3, 2019 Announcing upgraded operating systems for iPhone, Apple Watch, and Mac — and a brand new one for iPad.

The Mac Pro is a series of workstations and servers for professionals designed, manufactured, and sold by Apple Inc. The Mac Pro, by some performance benchmarks, is the most powerful computer that Apple offers. Purchase Mac OS X Lion installer on the Apple Store: When it was still Lion DiskMaker, DiskMaker X had the ability to burn DVDs too. Older versions are available here. Download DiskMaker 2.0.2 ( ZIP file, about 3 MB). NB: this version of DiskMaker X is not able to build a Mavericks installer from Mac OS X 10.6.8. More information here.

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Apple Event October 13, 2020

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Apple Event September 15, 2020

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Apple Event September 10, 2019

Announcing the new iPhone 11 Pro, iPhone 11, Apple Watch Series 5, and iPad.

WWDC June 3, 2019

Announcing upgraded operating systems for iPhone, Apple Watch, and Mac — and a brand new one for iPad. And introducing the new Mac Pro and Pro Display XDR.

Apple Event March 25, 2019

Mac Pro 2.1 Yosemite

Announcing the new Apple TV+, Apple News+, Apple Arcade, and Apple Card.