Apple's WWDC 2026 keynote kicks off Monday, June 8, bringing news of macOS 27 alongside iOS 27. The operating system update will inherit several iOS features, including the revamped Siri and dedicated Siri app, as Apple continues expanding its voice assistant integration across platforms.

Liquid Glass design refinements appear likely based on Bloomberg's Mark Gurman, who reports macOS 27 will feature a slight redesign to improve readability. The transparency effects and shadows introduced in macOS Tahoe reportedly created usability quirks that Apple aims to address.

MacRumors readers are weighing in on desired improvements: external display support, memory management enhancements, multitasking updates, and bug fixes. With RAM prices remaining high, performance optimization ranks as a top concern for Mac users upgrading their systems.

Naming speculation centers on macOS Big Bear, hinted at through Apple's WWDC hashmoji filename. The company's tradition of California landmark names continues, while the Apple Developer app recently received its own Liquid Glass redesign with updated icons and WWDC-themed stickers for developers.