The Package in Extra is is flagged out of date since weeks without any update. the repo version is 5.0.342.9 whereas stable version[1] is 5.0.375.55. The latest version has security fixes so its suggested that repo version should be updated.
[1]http://googlechromereleases.blogspot.com/2010/05/stable-channel-update.html Regards, Gaurish Sharma www.gaurishsharma.com
