OS X Yosemite 10.10.3 includes the all-new Photos app, which replaces Aperture and iPhoto. In both appearance and features, Photos for OS X is similar to the Photos app bundled in iOS. The two apps share the same approach to photo management with both versions featuring a robust organizer coupled with basic editing tools.
Most notably, new APIs have been added to OS X that support Force Touch included on the MacBook Pro and MacBook.
- Accelerators. Pressure sensitivity in the trackpad enables apps to give users greater control. For instance the fast-forward button in media playback can speed up as pressure increases.
- Pressure sensitivity. Drawing and other creative apps can take advantage of the pressure-sensing capabilities of the trackpad to make lines thicker or give the brush a changing style.
- Drag and Drop. Apps can add the springLoaded property to their controls so they can react to a Force click gesture while in the middle of performing a drag, for instance to immediately open a new target for the drop.
- A new look-up feature. Now you can look-up text and it will show suggestions from iTunes App Store, movie show times, and more, using your location to show relevant information.