The document summarizes announcements from Microsoft Build 2018 related to .NET development. Key announcements include: 1. The release of .NET Core 2.1 RC with improvements to performance, support for ARM processors like Raspberry Pi 2, Docker image updates, and new cryptography APIs. 2. An overview of the .NET Core family including ASP.NET Core 2.1 being the fastest web framework, ASP.NET Core SignalR support, and new features in Entity Framework Core 2.1. 3. The roadmap for .NET Core 3.0 which will include full access to Windows 10 APIs, using UWP controls in WPF and Windows Forms, self-contained applications, and migration of