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Continue to ChatYouTube․com no longer supports 4K video playback in Safari https://macdailynews.com/2017/01/12/youtube%e2%80%a4com-no-longer-supports-4k-video-playback-in-safari/
YouTube․com no longer supports 4K video playback in Safari https://macdailynews.com/2017/01/12/youtube%e2%80%a4com-no-longer-supports-4k-video-playback-in-safari/