C# 14: New features with code examples

C# 14 has been released with .NET 10 and it comes with new features.

But are the new features worth updating your ASP.NET Core app to .NET 10? You can also find out by watching the video below:

Download the code example

You'll need to fill out the code example form. We will send you an email where you can download the code example.

Software

This is the software that will need to be installed onto your machine.

• Visual Studio 2026. Version 18.0.0 or above. It will work with the free community version.
• .NET 10 SDK. Version 10.0.0 or above.

The application

Open up RoundTheCode.CSharp14.slnx. It should open it up in Visual Studio 2026.

Each of the new features are specified in a separate class file. In-addition, there is a Program.cs file that tests out these features. You can run the console application to try it out for yourself and see the expected output.