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19. 12. 2025 Francesco Belacca Microsoft

The New .slnx Format for dotnet Solutions

.sln Is Dead, Long Live .slnx: Why This Tiny Change Matters for Your Pipelines Some months ago here I used file-based apps and dotnet run app.cs as an excuse to question when C# might realistically replace PowerShell in day-to-day operations. This time the trigger is less flashy, but just as impactful: the new .slnx solution…

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18. 06. 2025 Francesco Belacca Microsoft

Dotnet Run App

Why am I writing this? The recent introduction of file‐based apps in .NET 10 Preview 4 marks a turning point in how we think about C# for quick tasks and prototyping. With a single command – dotnet run app.cs – you can now execute a standalone C# file without ever creating a .csproj (May 28,…

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