Parallels Desktop 8 for Mac and earlier versions
If you intend to upgrade to Mac OS X Yosemite (10.10), please note that Parallels Desktop for Mac version 8 and earlier will not support OS X Yosemite (10.10). You will not be able to launch your Windows Virtual Machine or directly use your files through Parallels Desktop for Mac version 8 and earlier.
To continue using Parallels Desktop for Mac in OS X Yosemite you should upgrade to Parallels Desktop 10 for Mac: http://www.parallels.com/products/desktop/
Parallels Desktop 9 for Mac
The latest update of Parallels Desktop 9 for Mac does support OS X Yosemite and is available to address the majority of the OS X Yosemite compatibility issues.
Please make sure that you have the latest update by downloading it here.
Known issues with Parallels Desktop 9 and OS X Yosemite
OS X 10.10 virtual machine hangs with black screen on boot after initialization guest Mac OS X upgrade.
- OS X 10.10 virtual machine hangs with partition selection screen on boot after initialization guest Mac OS X upgrade.
Coherence window becomes unresponsive after switching to Fullscreen.
Parallels Desktop installation may be corrupted.
Various GUI artifacts.
“Open in Windows” option may not work.
- Parallels Tools update may cause troubles.
Note: If you experience one of these issues please contact Parallels Support team: http://www.parallels.com/support/
Parallels Desktop 10 for Mac
A new version of Parallels Desktop 10 is fully compatible with Mac OS X 10.10 Yosemite. For more information about upgrading to Parallels Desktop 10 please visit KB122647