System.Xml.XPath.XDocument by: Microsoft

Provides extension methods that add System.Xml.XPath support to the System.Xml.XDocument package. Commonly Used Types: System.Xml.XPath.Extensions System.Xml.XPath.XDocumentExtensions When using NuGet 3.x this package requires at least version 3.4.

Validation by: Andrew Arnott

Method input validation and runtime checks that report errors or throw exceptions when failures are detected.

Zlib.Portable by: AdvancedREI onovotny

A Portable Class Library port of the popular Zlib library from http://dotnetzip.codeplex.com. Works on .NET 4, 4.0.3, & 4.5.x, Sliverlight 5, Windows Phone 8.x, Windows 8.x, Xamarin.iOS, & Xamarin.Android.

Zlib.Portable.Signed by: AdvancedREI onovotny

A Portable Class Library port of the popular Zlib library from http://dotnetzip.codeplex.com. Works on .NET 4, 4.0.3, & 4.5.x, Sliverlight 5, Windows Phone 8.x, Windows 8.x, Xamarin.iOS, & Xamarin.Android.

ZstdSharp.Port by: Oleg Stepanischev

Port of zstd compression library to c#