sentences:  TurboCAD 19 was released in March 2012 and included 64-bit support for TurboCAD Professional.TurboCAD 20 was released in March 2013, and included the introduction of Surface Mesh (SMESH) tools, as well as 64-bit support for TurboCAD Deluxe and Designer.TurboCAD 21 was released in March 2014.