.NET is a leading framework for web, desktop, and mobile app development, with a rising usage of C# in product development. We will begin by exploring the new developments in C# 11. You will get a detailed overview of the latest features in .NET 7, including the ‘Required’ modifier, raw string literals, UTF-8 string literals, auto-default structs, file-scoped types, list patterns, and the intricacies of dealing with microseconds and nanoseconds. You will also understand the support for Tar files. Next, we will dive into C# 10 updates. This includes an overview of .NET 6, an examination of simplified .NET development, the utility of ‘global using’ directives, insights into file-scoped namespaces, an exploration of ‘record’ type enhancements, and improvements in ‘struct’ types. We will also cover constant interpolated strings and the .NET Upgrade Assistant. Finally, we will delve into the updates within .NET 6. This includes a discussion on the introduction of new DateOnly and TimeOnly structs, the importance of SDK version checking, the concept of SDK workloads, the addition of Arm64 support, and the critical focus on security enhancements within the framework. By the end of this course, you will possess a thorough grasp of these concepts, empowering you to proficiently utilize these advancements in your software projects.