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We love the Do Not Disturb feature in iOS—it’s essential for keeping notifications from waking us up at night or causing embarrassing light and noise in dark movie theater. But it’s long had a problem. When you invoked Do Not Disturb manually for a movie or doctor’s appointment, you had to remember to turn it off manually when you were done, or risk missing important notifications. No more!

Apple has thrown back the curtain on its latest batch of iPhones and a new model of the Apple Watch. The company also announced plans to release iOS 12, watchOS 5, and tvOS 12 on September 17th. macOS 10.14 Mojave will follow a week later on September 24th.

When you double-click a document, macOS uses the document’s file extension to figure out which app should open the file. So, by default, a PDF file called laser-squid.pdf opens in Preview because the Finder knows that everything with a .pdf extension should open in Preview. But what if you would prefer to open .pdf files in Adobe Reader, or you want comma-separated value (.csv) text files to open in Numbers? To change any mapping, select a file of the type in question and choose File > Get Info to open the Info window.