Support for .NET 10 and C# 14 in Cursor AI IDE

Ideas Feature Requests
1

Feature request for product/service

Cursor IDE

Describe the request

Hi Cursor team,

I’d like to request official support for .NET 10 and C# 14, which were released on November 11, 2025, as announced in Microsoft’s official blog:

At the moment, Cursor’s AI models appear not to recognize or apply any of the C# 14 syntax or language features. When asked to use them, the assistant explicitly refuses, stating that they are “not supported.” In addition, when generating code for new features, it sometimes falls back to outdated syntax versions — occasionally producing patterns that resemble early experimental drafts of the language, not the final C# 14 release.

This makes it difficult to experiment with or adopt .NET 10 features within Cursor.
Could you please add full .NET 10 / C# 14 awareness and syntax support to the environment and AI models?

This update would ensure Cursor remains aligned with the latest Microsoft stack and enable developers to take advantage of new runtime, compiler, and language features.

Thank you for considering this update!

3 Likes
3

I’m also running into this issue.

5

I installed the DotRush – Open VSX Registry to be able to at least have proper syntax highlighting and linting … but there is nothing it can be done for the models except to wait.

7

That’s a good interim solution, though i’d prefer the Cursor published C# extension would support C#10.

9

It’s been 11 days since this issue was raised, and there’s still no official response. I’m bringing it up again for visibility.