From 2001 to 2012, OS X was code-named internally (for development purposes) after big cats. Becuase Apple marketing was also using those code-names to promote OS X publicly, however, the company's development crew switched their internal naming structure to wines beginning with OS X 10.3 — publicly known as Panther, privately as 'Pinot.' (Apple did make one exception for OS X 10.6, which never had a code-name beyond Snow Leopard.)
Though Apple's external code-names for OS X switched to California places in 2013, the internal code-names remained wine-based until 2014. In 2015, the development team switched to types of apples, with OS X 10.11 El Capitan (AKA 'Gala').
Mac Os Versions List By Year
Open the App Store app on your Mac. Click Updates in the App Store toolbar. Use the Update buttons to download and install any updates listed. When the App Store shows no more updates, your version of macOS and all of its apps are up to date. That includes Safari, iTunes, iBooks, Messages, Mail, Calendar, Photos, and FaceTime.
In 2016, OS X officially became macOS, though Apple continued using California places as the external code names, and apple types as the internal code names. So far, this has remained the internal code name across the board.
Mac Os Versions El Capitan
- OS X 10 beta: Kodiak
- OS X 10.0: Cheetah
- OS X 10.1: Puma
- OS X 10.2: Jaguar
- OS X 10.3 Panther (Pinot)
- OS X 10.4 Tiger (Merlot)
- OS X 10.4.4 Tiger (Intel: Chardonay)
- OS X 10.5 Leopard (Chablis)
- OS X 10.6 Snow Leopard
- OS X 10.7 Lion (Barolo)
- OS X 10.8 Mountain Lion (Zinfandel)
- OS X 10.9 Mavericks (Cabernet)
- OS X 10.10: Yosemite (Syrah)
- OS X 10.11: El Capitan (Gala)
- macOS 10.12: Sierra (Fuji)
- macOS 10.13: High Sierra (Lobo)
- macOS 10.14: Mojave (Liberty)