Microsoft Open Sources WPF and Windows Forms

WPF and Windows Forms are open source now and available on Github as a part of .NET Core ecosystem.

Today, at MS Connect 2018, Microsoft open sourced its two popular Windows client development technologies, WPF and Windows Forms. Microsoft also open-sourced Win UI.
WPF Windows Forms Open Source 
Both, WPF and Windows Forms, are used by millions of developers for years to build Windows client applications. Windows Forms was the oldest UI technology introduced in the first version of the .NET Framework.
Now, all these technologies are open sourced and available as a part of .NET Core umbrella.
Check out WPF and Windows Forms repos here: