VP9 is the successor to VP8, the video codec that Google open sourced and included in WebM. It’s also the only major competitor to H.265/HEVC.
In a series of blog posts last week, Google detailed the final release schedule for VP9 and a few other implementation details. These posts also indicated that YouTube plans to start using VP9 once it’s available in Chrome. Unfortunately for Google, recent patent infringement claims from Nokia seriously muddy the waters regarding whether or not VP8 and VP9 will ultimately be royalty free.
Read more in my article in StreamingMedia.com.