The .NET Framework 4.5 is a highly compatible, in-place update to the .NET Framework 4. By using the .NET Framework 4.5 together with the C#, Visual Basic, or F# programming language, you can write Windows apps. The .NET Framework 4.5 includes significant language and framework enhancements for C#, Visual Basic, and F# (so that you can more easily write asynchronous code), the blending of control flow in synchronous code, a responsive UI, and web app scalability . The .NET Framework 4.5 adds substantial improvements to other functional areas such as ASP.NET, Managed Extensibility Framework, Windows Communication Foundation, Windows Workflow Foundation, and Windows Identity Foundation. The .NET Framework 4.5 delivers better performance, reliability, and security.
Full Specifications
What's new in version 4.8
.NET Framework 4.8 introduces new features in the following areas:
Base classes
Windows Communication Foundation (WCF)
Windows Presentation Foundation (WPF)
Common language runtime
General
ReleaseApril 8, 2020
Date AddedApril 8, 2020
Version4.8
Operating Systems
Operating SystemsWindows 10, Windows 8, Windows Vista, Windows, Windows 7