Apple unveiled OS X Yosemite at their Worldwide Developers Conference, and now the operating system is available to the public through a beta.
The urgent software update affects the most recent two versions of macOS, El Capitan and Yosemite
The first ever automated Mac security update has been pushed out by Apple to Macintosh computers yesterday. According to Apple spokesman Bill Evans, the update is seamless and you won’t even notice it unless you are looking for it.
The latest update to OS X Yosemite, 10.10.1, appears to be causing some users to be unable to play YouTube videos in Safari. According to threads on the Apple Support forums and Google's Product forums, some users that attempt to play YouTube videos are seeing only black screens with audio clipping or are experiencing problems loading videos.
