Here’s a list of the current OSX Version numbers converted to names starting from Yosemite in descending order.

• El Capitan – 10.11
• Yosemite – 10.10
• Mavericks – 10.9
• Mountain Lion – 10.8
• Lion – 10.7
• Snow Leopard – 10.6
• Leopard – 10.5
• Tiger – 10.4
• Panther – 10.3
• Jaguar – 10.2
• Puma – 10.1
• Cheetah – 10.0

Last updated 05/11/2015