Mainstream Support for Microsoft Dynamics CRM ends in just 6 months!
On the 12th July 2016, Microsoft will end mainstream support for Microsoft CRM 2011. This means that after this date, the only kind of updates that Microsoft will provide are related to security. No other updates will be produced and support will only be available to customers on a paid support plan.
Security updates should be available until the end of extended support which is the 13th July 2021
You can find out more information from Microsoft Lifecycle Services