@Arty the title has pretty much nothing to do with the actual article.
The article is about less taxing video playback at all resolutions, and your title is "youtube supports 4K60fps"......which it has for months now.
http://www.theverge.com/2015/3/27/8299443/youtube-4k-60fps-videos-star-citizen-k-pop
The source you linked is actual news that has yet to be posted, AFAIK, but your title and some of your post is old news