Microsoft ships .NET 10 LTS and Visual Studio 2026, Copilot everywhere

Microsoft has released C# 14 and .NET 10, a long-term support version, along with a bunch of related products including Visual Studio 2026 and Aspire 13. Copilot Free is included but devs will soon hit its limits.

The new releases were timed to coincide with the virtual .NET Conf under way this week. It is a big day for Microsoft's developer platform since .NET 10 is a long-term support release, which only come around every two years.

There is also Visual Studio 2026 (VS 2026), the successor to VS 2022, with a refreshed user interface, though perhaps not as big a jump in features as the first name change in years implies.

Nevertheless, there is plenty for developers to chew on in the new batch of releases. C# 14, included in the .NET 10 SDK, introduces file-based apps, meaning applications contained in a single file with a .cs extension ...