support for framework profiles - NuGet packages can now contain libraries not only for different versions of the .NET framework, but also for different platforms, for example, Silverlight on Windows Phone 7;
automatic addition of binding redirects — NuGet can now automatically determine the need for configuring the bindingRedirect section in web.config. Details on the problem of configuring bind redirections are described here ;
reference to .NET Framework assemblies (from the GAC) - now in the NuGet package, you can specify the list of assemblies that the package uses from the standard .NET Framework set. This can be useful for developers who will document the project and list package dependencies;
API key storage support - now NuGet allows you to save the package key using the SetApiKey command so that you do not have to re-enter it the next time you update the package;
In addition, the update received the tool NuGet Package Explorer. Now released the final version of this tool, which allows you to explore the contents of the NuGet packages and integrates into the Windows environment for greater convenience.