Via Microsoft: The end of support for SQL Server 2005 is April 12, 2016. See the SQL Server 2005 upgrade page for more information to help you make the transition. You will learn what end of support means, reasons to upgrade, and how to plan and carry out a move to a more modern data platform.
If you have specific questions regarding the upgrade, contact email@example.com or engage the community on our forum. Cheers,