Hi, I'm have done integration NAV to CRM the Dynamics Connector (3.4.304.1) to integrate our CRM Online 2016.

Dynamics CRM have update 1 release and i have update to this version after then any effect on the integration.

Those are new features list and also this link(https://www.microsoft.com/en-us/dynamics/crm-customer-center/what-s-new.aspx) for reference. 

  Productivity features

  Service features

  Mobile features

  Analytics features