10/23/17 (Update) - A new registry workaround has been released for the Outlook Security Update & Dynamics 365/CRM for Outlook Add-in Issues; This registry workaround allows users to keep updating their Outlook. More information & the steps to add the registry key can be found here.
10/10/17 (New) - Known Outlook Security Update Issue w/ Dynamics 365/CRM for Outlook Add-in. Click here for more information & a temporary workaround.
(Note - As of right now, this does not affect the Dynamics 365 App for Outlook, only the COM Add-in)