2025 proved to be a milestone year for the .NET community, marked by a surge in high-impact blog content spanning major platform releases, tooling updates, and ecosystem insights. The official recap highlights the most-read posts that shaped developer conversations across performance, AI, productivity and community engagement.

Here’s a quick recap:

.NET 10
The headline release of the year. As the latest LTS version, .NET 10 delivered improvements across the runtime, SDK, libraries, languages, workloads, and tooling.
AI
AI became part of everyday .NET development—from Copilot experiences to agents and tool integration patterns. Highlights included simpler AI agents for developers, building Model Context Protocol servers in C#, and the preview of new .NET AI templates.
Productivity
Many posts focused on shortening feedback loops, whether through smarter Copilot workflows or faster “try this now” experiences—helping developers choose the right copilot approach, from Ask mode to Agent mode.
Announcements
Some of the most impactful updates focused less on new features and more on how .NET is released, supported, and kept secure across the ecosystem.
Tooling
Tooling also leveled up with support for SLNX, a simpler solution file format in the .NET CLI, and dotnet run app.cs, making it easier than ever to get started with C# and .NET 10.

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