Download .Net Framework 4.7.1 Early Access

Recently Microsoft announced the new .Net Framework 4.7.1 Early access build with the Developer pack. The .NET Framework 4.7.1 Developer Pack lets developers build applications that target the .NET Framework 4.7.1 by using Visual Studio 2017, Visual Studio 2015 or other IDEs. This is a single package that bundles the .NET Framework 4.7.1, the .NET 4.7.1 Targeting Pack, and the .NET Framework 4.7.1 SDK. 
This pre-release includes improvements in several areas and below are some of the new features which are available in this release.

• Configuration builders
• ASP.NET Execution step feature
• ASP.NET HttpCookie parsing
• More secure SHA-2 support in ASP.NET and System.Messaging
• .NET Framework support for .NET Standard 2.0
• Enhancements in Visual Tree for WPF applications
• Accessibility improvements in narration, high contrast and focus control areas
• Performance and reliability improvements.

You can refer the complete list of improvement in the release notes.
To install the latest .Net framework:

• Go to the .NET Framework Early Access site. Review, accept and download the current build.