On 7/24 Apple released to the public a Beta version of their latest OS, OS X Yosemite. Apple sent our redemption codes to one million Beta Program members. Members can request a code which is then redeemed in the App Store where Yosemite can be downloaded.
Not all the features of Yosemite are going to be available since they are designed to work with iOS devices on version 8. Currently version 8 is available only to developers and will be released to the public with the next generation iPhone.
While the OS is stable, it has the Beta label for a reason and is not meant to be loaded on your primary machine. Some known issues are:
Known Issues
Safari may hang when playing certain Netflix content.
iPhoto 9.5.1 and Aperture 3.5.1 are required on OS X Yosemite. Update to these versions from the Mac App Store.
When entering edit mode in iPhoto, a black screen may be displayed instead of the selected photo.
Photo Stream and iCloud Photo Sharing may not function properly when both iPhoto and Aperture are installed.
The shared purchase history page on the Mac App Store is disabled for Family Sharing accounts.
iCloud Drive may appear empty in the Finder after first time setup. Restart to resolve this problem.
AirDrop may not show nearby Macs.
Sending files to another Mac using AirDrop may not work.
iPhoto 9.5.1 and Aperture 3.5.1 are required on OS X Yosemite. Update to these versions from the Mac App Store.
When entering edit mode in iPhoto, a black screen may be displayed instead of the selected photo.
Photo Stream and iCloud Photo Sharing may not function properly when both iPhoto and Aperture are installed.
The shared purchase history page on the Mac App Store is disabled for Family Sharing accounts.
iCloud Drive may appear empty in the Finder after first time setup. Restart to resolve this problem.
AirDrop may not show nearby Macs.
Sending files to another Mac using AirDrop may not work.