Download and install older versions of OS X on a Mac. So, you’ve decided to download an older version of Mac OS X. Yosemite 10.10: El Capitan 10.11. Download the latest version of Mac OS X 10.10.1 Yosemite with just one click, without registration. It comes with a safe official offline installer for Mac OS X 10.10.1 Yosemite.
The OS X Yosemite 10.10.1 update is recommended for all Yosemite users. It improves the stability and compatibility of your Mac. This update: - Improves Wi-Fi reliability - Improves reliability when connecting to a Microsoft Exchange server - Improves reliability sending Mail messages when using certain email service providers - Improves reliability when connecting to remote computers using Back to My Mac For more detailed information about this update, please visit: http://support.apple.com/kb/HT6572.
Upgrading to Yosemite You can upgrade to Yosemite from Lion or directly from Snow Leopard. Yosemite can be downloaded from the Mac App Store for FREE. Upgrading to Yosemite To upgrade to Yosemite you must have Snow Leopard 10.6.8 or Lion installed. Download Yosemite from the App Store. Sign in using your Apple ID.
Yosemite is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless. Macs that can be upgraded to OS X Yosemite 1. IMac (Mid 2007 or newer) - Model Identifier 7,1 or later 2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later 3.