The new Photos app is the big new feature here.
The new Photos app doesnt have the obnoxious menus and design of iPhoto.
you could also create your own books and calendars from your photos pretty quickly.
Besides Photos, 10.10.3 also brings a set of diverse emoji and better support for Gmails two-factor authentication.
Yosemite 10.3.3(Free) | Mac App Store
