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Yosemite Hardware Compatibility
Yosemite Software Compatibility
Version 8 is supported
Version 7 is supported
Version 3.2.5 and later are supported
Important Applications and Support Information
Front Row: If you love Front Row for viewing video, photos, podcasts, and music, you'll be sorry to hear it was dropped in OS X Lion 10.7 and there is still no direct replacement from Apple in OS X Yosemite.
Flash from Adobe: This is how a large portion of the webpages and videos are viewed on the Internet. Flash takes advantage of hardware acceleration to deliver High-Quality video with minimal overhead. While not a part of the install, Flash is still fully supported and can be downloaded from Adobe.
Java's Runtime Environment: Java is no longer a part of the install as of OS X Lion is still not included in OS X Yosemite. Java is a universal programming language that allows software and utilities to be compatible across a wide variety of devices. If an application needs Java to function correctly, Mac OS X Yosemite will present a prompt to download Java via Software Update.
Rosetta: OS X Snow Leopard was the last version of Mac OS X that supported Rosetta. This is the program that allows PowerPC software to run in an Intel environment. Example programs that use Rosetta are Quicken 2007 and earlier, as well as older versions of Adobe Photoshop. If you are running Creative Suite 2 or older and upgrade to Mac OS X Yosemite, CS2 will no longer run. If you run older software or suspect a software program you use relies on Rosetta, check with the software manufacturer before upgrading.
General Application Support: Generally any application that ran in OS X Mountain Lion will run in OS X Yosemite. RoaringApps has the broadest coverage of application compatibility with various Mac OS X versions: http://new.roaringapps.com
OS X Yosemite
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