Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
C Sharp 4.0
open-in-new
<p>C# 4.0 is a version of the <a href="/facts/C_Sharp_/UC2gxeyb">C#</a> programming language that was released on April 11, 2010. <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> released the 4.0 <a href="/facts/Run-time_system/YmCuC4xP">runtime</a> and development environment <a href="/facts/Visual_Studio_2010/omNe6Lej">Visual Studio 2010</a>. The major focus of C# 4.0 is interoperability with partially or fully dynamically typed languages and frameworks, such as the <a href="/facts/Dynamic_Language_Runtime/Py4udCP9">Dynamic Language Runtime</a> and <a href="/facts/Component_Object_Model/2DtIAufW">COM</a>. </p>