Apple delivers major upgrades to the macOS High Sierra Photos app. With the new update you will be able to edit your photos in new ways right inside of Photos, and if you use PhotoShop or Pixelmator your changes there will sync back to your Photos library.
Inside Photos, you can now edit with more controls than ever including a Curves editor to dial in your photo just right. A new sidebar on the left offers fast access to important albums and options. new selection options show you what you've picked and allow you to organize photos better.
You can edit Live Photos to set a key photo that looks amazing. The Photos app also now lets you trim live photos to the perfect length. Once that is done, you can choose a new effect that lets you loop the action or bounce it back after it completes. There's also a new Artistic effect that can create long exposure filters to live photos with impressive results.
When you are on a FaceTime video call, you can take a Live Photo that is saved directly to your Photos library and then you can edit it using these new tools.
Upgraded Memories options detect special events better including babies, outdoor events, performances, weddings, birthdays, sporting events and more. There is even a new Memory that can find your pets.
When you tell the Photos app who a person is, the face recognition will sync across your iCloud Photo Library so that it is always handy.