.NET is becoming more accessible than ever with new features that simplify common development tasks. This session introduces the new `dotnet run file.cs` command that allows you to run C# code files directly without requiring a project file. Learn how this feature enables quick experimentation, simplifies scripting scenarios, and makes .NET more approachable for beginners and scripts. We'll explore use cases including rapid prototyping, educational scenarios, automation scripts, and utility programs. Discover how .NET is removing friction from development workflows and making it easier to use C# for everything from quick one-liners to standalone utilities. See how .NET continues to evolve toward simplicity and developer productivity.

.NET 10 — The most intelligent and unified .NET yet: https://aka.ms/dotnet10/
.NET Aspire 13 — Simplified orchestration for cloud-native apps: https://aka.ms/aspire13/announcement 
ASP.NET Core 10 — Modern, secure, and full-stack web development: https://aka.ms/asp/dotnet/2025 
.NET MAUI 10 — Build beautiful apps on every platform: https://aka.ms/dotnet/maui/2025  
C# 14 — A more expressive and productive language: https://aka.ms/csharp14/announcement/2025 
F# 10 — Safer, faster, and more functional than ever: https://aka.ms/fsharp10/2025/announcement 
Visual Studio 2026 — Faster, smarter, and built for the future: https://aka.ms/visualstudio2026/announcement
.NET Conf 2025 — A global celebration of .NET innovation: https://aka.ms/dotnotconf2025/recap


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.NET Blog

.NET 10 introduces file-based apps, allowing developers to run C# code directly from .cs files using 'dotnet run file.cs' without requiring project files. This feature targets beginners and scripters, supporting package references via hash directives, Unix shebang execution, debugging in VS Code, and even ASP.NET Core web APIs. The system compiles code behind the scenes in a temp directory for fast iteration while maintaining full C# semantics, unlike interpreted scripting dialects.

Simplifying .NET with 'dotnet run file.cs'