http://blogs.technet.com/b/port25/archive/2010/11/09/f-compiler-core-library-now-available-via-open-source-code-drop.aspxby Peter Galli on November 09, 2010 11:15am In case you missed it last week, Microsoft has made the version 2.0 of the F# compiler and core libraries available under the Apache 2.0 license to help education and tool development. The source code is publisheden-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)