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The NuGet team is excited to announce NuGet 2.7 release, for details please see the release notes published on docs.nuget.org.
Package Restore by Default (with implicit consent)
Project Retargeting and Upgrade Build Errors/Warnings
NuGet Configuration Defaults
Renaming the Default Package Source
New Extensibility APIs
Note that with NuGet 2.7, we have removed support for Visual Studio 2010 Express for Windows Phone due to technical limitations related to the new automatic package restore. A separate download is available for that version of Visual Studio and it can be found on the NuGet 2.7 downloads page on CodePlex.
NuGet 2.7 is the version of NuGet that will be included in Visual Studio 2013, with the exception of minor updates such as refreshed localization. When those updates are completed, we will republish NuGet 2.7, but no new features will be added.
There are two known issues with nuget.exe restore with the 2.7 release, and these will be fixed soon and the nuget.exe download will be updated along with the NuGet.CommandLine package.
It looks like 2.7 has a change/problem in how it's handling package version numbers. Packages that have a leading zero in their version number (for example www.nuget.org/.../AjaxControlToolkit ) are breaking package restore.
I have created an issue for this problem: