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macOS 27 Adds Native Ultrawide Display Support

Apple promises higher-resolution modes such as 5K at 120Hz and automatic layout restoration, with a developer beta released now followed by a public rollout this fall.

Overview

  • Apple previewed macOS 27 Golden Gate at WWDC on Monday, June 8, and published the first developer beta the same day.
  • The company says ultrawide monitors can run at higher native modes — Apple cited 5K at 120Hz as an example — and that display layouts will restore exactly as left when a monitor is reconnected.
  • Bloomberg reporter Mark Gurman has reported that macOS 27 will require Apple silicon, which would exclude Intel-based Macs from the upgrade.
  • Apple has not explained the technical implementation, so it has not said whether changes involve HiDPI scaling, Display Stream Compression, or specific connection standards and Mac models.
  • The change removes a long-standing friction point for ultrawide and multi-monitor users by reducing manual reconfiguration, and it could affect monitor makers and pro workflows depending on the final hardware and cable requirements.