If you’re early adopter and using Chrome Canary build version 10.0.614.0,  if you click “About Google Chrome “ from Tools icon to manually check for update canary build prompts to Restart Chrome to finish updating,  when you restart Chrome Canary won’t update.

Google Chrome Canary 10 update issue

Are you facing this problem, let me say you are not alone,  present Chrome Canary build has this issue thinking that there is an update when actually there is no update available though.  Don’t figure out something wrong with Chrome Canary build in your System which is same for all.

So you don’t need to uninstall and reinstall Chrome Canary build.