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9to5mac
macOS 27 Golden Gate beta 4 now available to developers, here’s what’s new
Apple has rolled out macOS 27 Golden Gate beta 4 to developers, following a series of previous versions. This update comes just days after the launch of the public beta, signaling Apple's commitment to addressing issues and enhancing functionalities. Key features include new Liquid Glass adjustments and improvements to Siri AI, integrating third-generation Apple Foundation Models to boost performance and relevance.
MonitorConfidence: MediumShort term horizon
Published 20 Jul 2026, 18:30 UTC1 min read
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Summary
TL;DR
- macOS 27 beta 4 improves UI transparency controls.
- Introduces standard rounded corners across app windows.
- Siri AI enhancements leverage a new indexing system.
- New Golden Gate-themed wallpapers and screensavers added.
- Forecasts a smooth public beta rollout with continued updates.
Interesting facts
- Siri AI is now driven by third-generation Apple Foundation Models.
- The update aims to refine UI based on user feedback from macOS 26.
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