macOS Big Sur Preview & Safari 14 Are Now Live At TestMu AI

WWDC 2020 introduced macOS Big Sur, marking the debut of the macOS 11 series, which features a refined design, enhanced security, and significant updates to Safari 14. Big Sur eliminates the need for third-party kernel extensions, improving security and user experience, while design changes include a taller menu bar and redesigned dock. Safari 14, available on Big Sur and earlier macOS versions, offers updates such as WebExtensions support, HTTP/3, WebP, HDR video playback, and improved privacy features. These enhancements aim to bolster user experience and developer capabilities, encouraging testing on platforms like TestMu AI to ensure website compatibility with these new features before the official release.

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