After you have updated the Calendar Publishing Host Application to GroupWise 2012, notify your GroupWise users that they should clear their browser caches before accessing published calendars. If old Calendar Publishing files are used from users’ browser caches, they might not be compatible with the updated files from the Web server. The results can be unpredictable and undesirable.
External users of published calendars might not see some aspects of the GroupWise 2012 Calendar Publishing interface until after they clear their browser caches.