What is .NET Core 3+?

.NET Core 3+ (now .NET 5, 6, 7, and 8) is a cross-platform, open-source, and modular framework for building a wide variety of applications, including web applications, console applications, desktop applications, and microservices. It provides significant performance improvements, a simplified deployment model, and support for modern development practices such as containerization and cloud-native architectures. It is commonly used for creating high-performance, scalable, and maintainable applications across different operating systems.