If you share your photos (or drag them into the Finder), Photos will transcode them to JPEG and H.264, because Apple realizes that many devices can’t yet understand the formats. Photos for High Sierra supports these formats natively, as you’d expect. Instead, they use the new High Efficiency Video Codec (HEVC) for video and HEIF (pronounced “heef”) for photos. Beginning with iOS 11, the iPhone 7 and later and the latest generation of iPad Pro models no longer capture photos and video in the JPEG and H.264 formats they’ve previously used-at least by default. Here’s a look at the changes and new features in Photos for Mac on macOS High Sierra. I literally wrote the book on Photos, so it’s been interesting to watch Apple’s replacement for iPhoto as it has grown and changed. One of the major areas of improvement in macOS High Sierra is to the Photos app, which is only a couple of years old and has plenty of room to grow.
What’s new in Photos for macOS High Sierra
