Microsoft Dynamics 4.0 will reach end of extended support on April 10, 2018. If you are using this version, please upgrade to Microsoft Dynamics CRM 2013 or a later version before April 10, 2018 to ensure supportability.
The best way to continue to get full support for Dynamics CRM is to upgrade to the latest versions, now known as Dynamics 365.
Here are the details regarding Microsoft provided support for Microsoft Dynamics CRM :
| Version | Lifecycle Start Date | Mainstream Support End Date | Extended Support End Date |
| Dynamics CRM 4.0 | February 29th 2008 | April 9th 2013 | April 10th 2018 |
| Dynamics CRM 2011 | May 18th 2011 | July 12th 2016 | July 13th 2021 |
| Dynamics CRM 2013 | January 12th 2014 | January 8th 2019 | January 9th 2024 |
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