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As announced in this post, the most recent version of Connector for Microsoft Dynamics (3.4.304.1) (“Connector”) supports Dynamics CRM 2016 (8.x.x.x) both on-premises and online. Today (April 8th, 2016) we are announcing that Dynamics CRM version 2016 will be the last major version of Dynamics CRM to be supported by Connector.
If your Dynamics product version does not appear in these matrices, then it is not supported by Connector for Microsoft Dynamics.
* Connections to Dynamics CRM using this version of Dynamics NAV should transition to the Dynamics CRM interoperability framework included in the Dynamics NAV 2016 release.
Note: Mainstream support for Dynamics CRM 2011 is scheduled to end on 7/12/2016 as will official Connector support for interoperability with Dynamics CRM 2011. The official Microsoft support lifecycle website can be found here.