Apple Mac OS Mavericks Download 10.9: Get It Now - Just

OS X Mavericks compatibility: will your Mac take it Jun 11, 2013 Compatibility of Avast with OSX 10.9 Maverick Oct 29, 2013 OS X Mavericks: Checking App Compatibility – The Mac Observer

Mavericks: Mac OS X 10.9 Compatibility Information

However, this Q&A has been updated with current compatibility info and is quite useful for anyone interested in running OS X Mavericks (OS X 10.9) on their Mac. On June 10, 2013, Apple introduced OS X "Mavericks" -- named after a popular California surfing locale -- and … Mac OS X Mavericks 10.9 ISO and DMG Image Download Nov 14, 2019 OS X Mavericks - Wikipedia

The site hosts a regularly updated list of OS X apps and whether or not their compatible with Mavericks, Mountain Lion, Lion, and Snow Leopard, and even includes iOS 7 and earlier app

macOS - How to Upgrade - Apple Make sure you’re ready to upgrade. Before you upgrade, we recommend that you back up your Mac. Then, if your Mac is running OS X Mavericks 10.9 or later, you can upgrade directly to macOS Catalina.