The Dev channel has been updated to 22.0.1221.0 for Windows and Mac (Update: also 22.0.1221.1 for Linux). This update has an updated version of V8 (22.214.171.124) along with other improvements. A complete log of what changed can be found in the svn revision log. Instructions and download links for our different release channels are available on the Chromium wiki. If you find what you think is a new bug, please file it in our issue tracker.