DocNET is as fast PDF editing and reading library for modern .NET applications 

Ammy is a modern UI language that either replaces or compliments XAML in your projects. 

 A framework for building native UWP and WPF apps with React.

MySQL Connector/Net 7.0.4 is the first development release that expands
cross-platform support to Linux and OS X when using Microsoft's .NET Core
framework. 

 In short, we’re making Xamarin’s cross-platform tools available in Visual Studio, from Community up through Enterprise at no additional cost and we’re open-sourcing the Xamarin SDK – the core of the Xamarin toolchain. In addition, we’re making Xamarin’s services (for example, Test Cloud and Xamarin University) available along with the existing Microsoft mobile DevOps capabilities.

https://blog.xamarin.com/xamarin-for-all/?utm_medium=social&utm_campaign=blog&utm_source=twitter&utm_content=xamarin-for-all 

 Today I’m excited to announce our plans to bring SQL Server to Linux as well. This will enable SQL Server to deliver a consistent data platform across Windows Server and Linux, as well as on-premises and cloud. 

 There is a known issue in the .NET Framework considering the "fa-IR" culture.