Enabled better integration with dynamic languages like Python (IronPython) and Ruby (IronRuby).
You will most likely encounter this string in the following places: net-framework-4-0-v-30319-32
If an application crashes, the "v4.0.30319" version is often cited in the stack trace or Event Viewer to identify which runtime was active. Security and Support Note net-framework-4-0-v-30319-32
When setting up a web server, you must select the .NET CLR version for an Application Pool. You will see "v4.0.30319" as the option for any modern .NET Framework app. net-framework-4-0-v-30319-32