macOS 10.15 Said to Feature 'Luna Display-Like' Desktop Extension Functionality
macOS 10.15 will have a new feature that allows users to send any window of any app to an external display, according to 9to5Mac's Guilherme Rambo. The external display can supposedly be a monitor connected to the Mac or even an iPad.

Luna Display
The report claims this functionality will be accessible via a new menu that can be opened by hovering over the green "maximize" button in a Mac app window for a split second. The menu is expected to provide options for making windows full-screen, tiling windows, and moving windows to external displays.
The feature, codenamed "Sidecar," is said to be similar to the Luna Display hardware solution that turns an iPad into a second display for the Mac.
Users with an iPad that supports
Apple Pencil will be able to draw with the Pencil when the iPad is being used as an external display for the Mac, effectively "turning the iPad into a Wacom-like tablet," according to the report.
The report claims Apple is also working on options that will allow windows to be easily snapped to one side of the screen.
Popular Stories
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries.
In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....
Apple released iOS 27 this week, and despite the company's focus this year on refining its flagship operating system and nixing bugs, there are still many additional features to explore, not least of which is Apple's new context-aware Siri, re-tooled for the generative AI era.
Which iPhones Support Every iOS 27 Feature?
This year's major iPhone software update isn't all about AI, though,...
Update — 10 a.m. Pacific Time: Apple has released iOS 27.
During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14.
iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update.
Below, we have highlighted eight new features and...