2001 Mac OS X 10.0 Cheetah

2001 Mac OS X 10.1 Puma

2002 Mac OS X 10.2 Jaguar

2003 Mac OS X 10.3 Panther

2004 Mac OS X 10.4 Tiger

2006 Mac OS X 10.5 Leopard

2008 Mac OS X 10.6 Snow Leopard

2010 Mac OS X 10.7 Lion

2012 OS X 10.8 Mountain Lion

2013 OS X 10.9 Mavericks

2014 OS X 10.10 Yosemite

2015 OS X 10.11 El Capitan

2016 macOS 10.12 Sierra

2017 macOS 10.13 High Sierra

2018 macOS 10.14 Mojave

2019 macOS 10.15 Catalina

2020 macOS 11 Big Sur

2021 macOS 12 Monterey

2022 macOS 13 Ventura