V4.0 __top__: Net Framework
Unlike versions 3.0 and 3.5 (which built upon the CLR from version 2.0), .NET Framework 4.0 introduced a new version of the CLR (CLR 4). This allowed for side-by-side hosting, meaning applications built on 4.0 could run alongside older versions without conflict.
Another significant feature of .NET Framework 4.0 is the Task Parallel Library (TPL) , which provides a high-level API for parallel programming. The TPL makes it easier for developers to write efficient, scalable, and concurrent code, allowing .NET applications to take full advantage of multi-core processors. net framework v4.0
Version 4.0 was designed to address the increasing complexity of modern hardware and diverse programming styles. What is .NET Framework? A software development framework Unlike versions 3