The Photos app lets you view photos you have stored in iCloud. The app will replace both iPhoto and Aperture, and you can migrate your libraries from both apps into Photos.

In addition to the Photos app, developer betas of OS X 10.10.3 have added support for Google's two-step verification, removing the need for app-specific passwords when signing into a protected Google account.

Participants in the AppleSeed public beta program can download the beta update, 14D87p, from the Mac App Store right now.