This is a standalone, power tool release of TypeScript 2.2 for Visual Studio 2015. It includes both the TypeScript experience for Visual Studio and a standalone compiler that can be used from the command line. 

You can install Update 2.1 on top of Update 2 or upgrade directly to Update 2.1 from previous versions (Update 1, TFS 2015 RTM, TFS 2013 and any of its Updates, TFS 2012 and any of its Updates, TFS 2010). 

This is a cumulative servicing update that provides fixes to Visual Studio 2015 Update 2. These fixes address high-impact bugs that were either found by the product team or reported from the community.  

Since October 2015, the WPF designer from SharpDevelop has been a standalone component that can be re-used in any application that needs to integrate a XAML designer. That component is now free of dependencies.

Big news: a new version of the NuGet clients has been released! This is version 3.3 of the client, with a new command-line and Visual Studio 2015 extension available for use. 

The .NET Micro Framework team is pleased to announce the release of .NET Micro Framework 4.4. We fixed several long outstanding issues as well as improved the reliability of lwIP network stack and debugging experience through Visual Studio 2015.

There are tonnes of exciting things happening in the Javascript space in 2015. The two most exciting things for me are React.js by Facebook and Aurelia by Rob Eisenberg (of Durandal fame).