Chromium 21.0 was released on 11 May 2012, with the initial release version 21.0.1134.0. This development cycle resulted in Google Chrome 21.0.1180.57 for OS X and Linux and Chrome 21.0.1180.60 for Windows and Chrome Frame, released on 31 July 2012. Chrome 21 incorporated a new API to enable high-quality video and audio communication, complete support for Apple’s retina display, as well as a large number of bug fixes. The release included the getUserMedia JavaScript API, which permits web applications access the user’s webcam and microphone after asking permission to do so