Got this message from Google. This affects Outlook users that rely on Google Calendar Synch to synch calendar items with Outlook, their phones, etc.
Important Announcement about Google Calendar Sync
Almost two years ago, we announced that we ended support for Google Calendar Sync. Starting on August 1, 2014, this app will no longer sync events between your Google Calendar and Microsoft Outlook Calendar.
You can continue to access all of your Google Calendar events at calendar.google.com or on your mobile devices. Follow these instructions to uninstall Google Calendar Sync from your computer.
– The Calendar Team