After updating its website for the iPhone launch event, Apple has confirmed that macOS High Sierra will be released on September 25th. TechCrunch provides a brief rundown of the major changes, most of which are under the hood: The Photos app is still receiving some new features to keep it up to date with the iOS version. There are more editing tools, you can reorganize the toolbar and you can filter your photos by type. If you're a Safari user, my favorite change is that there is a new feature in the settings that lets you automatically block autoplaying videos around the web. Many websites have abused autoplaying video, it's time to stop it. And then, there's a new file system that should make your Mac snappier if you're using an SSD. Mail is compressing messages, Metal 2 should take better advantage of your GPU, Spotlight knows about your flight status, etc. The free update to macOS High Sierra will be available in the Mac App Store.