Microsoft Office 2010 left the end Extended Support on October 13th, 2020, and no longer receives security fixes. Mainstream Support, which also included bug fixes, ended October 13th of 2015. These dates are for Office installations that included Service Pack 2. Un-updated versions ended Extended Support on July 10, 2012, and Service Pack 1 support ended October 14, 2014.
The product was launched July 15th, 2010.