Google Chrome Canary build allows to run along with other verison of Google Chrome browser, yes Google now allows to run two Chrome builds simultaneously.You can install Google Chrome (stable/beta/dev) then later install Google Chrome build  (Windows only for now)also.

Google Chrome canary build will be installed in different path to Google Chrome (stable/beta/dev) .Both these builds get updates separately.Moreover Canary build is same as dev build.Both current Dev and Canary builds have same verison number 6.0.472.0

Google Chrome Canary build will install in separate directory use different user profile and sport alternative shortcuts and icons.

Download Google Chrome Canary Build  (via)