.NET Core is an open-source, cross-platform framework developed by Microsoft for building modern, scalable, cloud-based, and high-performance applications. It supports multiple languages and is widely used for developing web, desktop, and microservice-based solutions.

Features of .NET Core:

• Cross-platform support: runs on Windows, Linux, and macOS.
• High performance and optimized for scalable applications.
• Supports C#, F#, and Visual Basic programming languages.
• Modern framework for developing APIs, microservices, and web applications.
• Rich ecosystem and active community with extensive documentation.

To install .NET Core SDK and check the version, run the following commands:

dotnet --version

Disclaimer: .NET Core is open-source software distributed under the MIT and Apache 2 licenses. It is provided "as is" without warranties, and users should validate it for their specific needs. Microsoft and contributors are not liable for any damages arising from its use.