Dear Aperture customer,
Last June, we introduced the new Photos apps for iOS 8 and OS X Yosemite, along with iCloud Photo Library, which lets you safely store all your phones in iCloud access them from anywhere.
When Photos for OS X launches this spring, Aperture will no longer be available for purchase from the Mac App Store. You can continue to use Aperture on OS X Yosemite, but you will not be able to buy additional copies of the app.
You can migrate your Aperture library to Photos for OS X, including your photos, adjustments, albums and keywords. After migrating, your Aperture library remains intact. However, Aperture and Photos do not share a unified library, so any changes made after the migration will not be shared between the apps.
To learn more about Photos for OS X, click here. If you're interested in trying the OS X 10.10.3 Public Beta, which includes Photos for OS X, click here.
We thank you for using Aperture and hope you will enjoy the new Photos for OS X App.
You can still purchase Aperture from the App Store for $79.99.
Read More [via Raouf]