The latest version of OS X features an elegant design, includes enhancements to the apps you use most, and enables your Mac and iOS devices to work together in new ways. Learn more about OS X; Safari extensions are a great way for you to add new features to Safari. Built by developers, Safari extensions use the latest web technologies. The installation file will download to your Mac’s Applications folder. Open the file to begin the installation, and then follow the on-screen instructions to complete the update (or rollback).

Mac Os X Mavericks Download
I’ve posted a few old links in my time (as I near 4,000 posts it would be hard not to have some that are broken). But Apple App Store downloads seem to do better with not breaking links. So here are some to old versions of macOS and OS X, in case like me, you always seem to need some old thing for testing:
- 10.14, Mojave https://itunes.apple.com/us/app/macos-mojave/id1398502828?mt=12
- 10.13, High Sierra: https://itunes.apple.com/us/app/macos-high-sierra/id1246284741?mt=12
- 10.12, Sierra: https://itunes.apple.com/us/app/macos-sierra/id1127487414?mt=12
- 10.11, El Capitan: https://itunes.apple.com/app/os-x-el-capitan/id1147835434?mt=12
- 10.10, Yosemite: https://itunes.apple.com/us/app/id675248567?mt=12
- 10.9, Mavericks: Beta builds available at https://developer.apple.com/download/more/
- 10.8, Mountain Lion: https://www.apple.com/shop/product/D6377Z/A/os-x-mountain-lion
- 10.7, Lion: https://www.apple.com/shop/product/D6106Z/A/os-x-lion
- 10.6, Snow Leopard: https://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard
- 10.5, Leopard: Beta builds available at https://developer.apple.com/download/more/
- 10.4, Tiger: No longer available
- 10.3, Panther: No longer available
- 10.2, Jaguar: No longer available
- 10.1, Puma: No longer available
- 0.0, Cheetah: No longer available


Mac Os Bootable Iso Download
Old versions of server are actually easier. You can download OS X Lion Server: https://itunes.apple.com/us/app/os-x-lion-server/id444376097?mt=12 or macOS Server: https://itunes.apple.com/us/app/macos-server/id883878097?mt=12 and most versions are available on the developer portal at https://developer.apple.com/download/more/.
