Apple is adding explicit ultrawide display support in macOS 27, enabling higher-resolution display modes and preserving monitor layouts when displays are reconnected.
LG curved ultra-wide Thunderbolt Display
LG curved ultra-wide Thunderbolt Display
The feature appeared in Apple’s macOS 27 preview materials released on June 8 during WWDC26. Macs can drive higher resolutions on supported ultrawide displays, with Apple citing 5K at 120Hz as one example.
The update also remembers display arrangements between sessions, allowing monitors to return to their previous positions automatically when reconnected.