As of version 2.2, it supports versioning, meaning Ads API methods will be removed from versions 1.0, 2.0, and 2.1 on January 28, 2015, following Facebook’s 90-day breaking change policy the ...

This browser version should roll out to all Chrome users sometime in May. Support in Chrome is a big boost for any new standard, whether it's a new or updated API, image format, or video codec.