Announcing a Public Preview .NET package that adds policy enforcement, startup tool scanning, fallback governance, and response sanitization to MCP servers with a single builder extension. The post Announcing Agent Governance Toolkit MCP Extensions for .NET appeared first on .NET Blog.

The `unsafe` keyword is being redesigned to mark caller-facing contracts rather than just syntax. Safety obligations between callers and callees become visible and reviewable. The model is motivated by the rise of AI-assisted code generation and arrives as a preview in .NET 11. The post Improving C#...

Package pruning in .NET 10 removes platform-provided packages from your dependency graph. With transitive auditing enabled by default, projects with these defaults have 70% fewer transitive vulnerability reports compared to projects using the previous defaults. The post NuGet Package Pruning: Cleane...

Process API improvements in .NET 11, including high-level APIs for starting processes, capturing output without deadlocks, handle inheritance control, lifetime management features, and a lightweight `SafeProcessHandle`-based API surface. The post Process API Improvements in .NET 11 appeared first on...

.NET MAUI apps on Android, iOS, and Mac Catalyst now run on CoreCLR by default in .NET 11, unifying the runtime across all of .NET. The post .NET MAUI Moves to CoreCLR in .NET 11 appeared first on .NET Blog.

Find out about the new features in .NET 11 Preview 4 across the .NET runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and more! The post .NET 11 Preview 4 is now available! appeared first on .NET Blog.

A recap of the latest servicing updates for .NET and .NET Framework for May 2026. The post .NET and .NET Framework May 2026 servicing releases updates appeared first on .NET Blog.

Microsoft Copilot Studio recently upgraded its .NET WebAssembly engine to .NET 10. The migration was straightforward, simplified deployment, and delivered another round of meaningful performance gains for end users. The post Copilot Studio gets faster with .NET 10 on WebAssembly appeared first on .N...

Build durable AI agent workflows with the Microsoft Agent Framework. Start with in-process console apps, add durability with the Durable Task runtime, scale with parallel AI agents, and host on Azure Functions for serverless execution. The post Durable Workflows in the Microsoft Agent Framework appe...

Build intelligent AI agents in .NET with the Microsoft Agent Framework. Learn how to create agents with tools, multi-turn conversations, memory, and graph-based workflows that bring together the building blocks from Parts 1 and 2. The post Microsoft Agent Framework – Building Blocks for AI Part 3 ap...

Learn how we built ConferencePulse, an AI-powered conference assistant, using .NET's composable AI stack including Microsoft.Extensions.AI, DataIngestion, VectorData, Model Context Protocol, and Microsoft Agent Framework. The post Building an AI-Powered Conference App with .NET’s Composable AI Stack...

Learn how to govern MCP tool calls in .NET with the Agent Governance Toolkit—policy-based access control, security scanning, and response sanitization to reduce risk in AI agent systems. The post Governing MCP tool calls in .NET with the Agent Governance Toolkit appeared first on .NET Blog.

VSTest is removing its Newtonsoft.Json dependency in .NET 11 and Visual Studio 18.8. Here's who is affected and how to fix it. The post VSTest is Removing its Newtonsoft.Json Dependency appeared first on .NET Blog.

SkiaSharp 4.0 Preview 1 is here. Learn all about the new features and how Uno Platform has stepped up as a co-maintainer. The post Welcome to SkiaSharp 4.0 Preview 1 appeared first on .NET Blog.

Adding caching to your application architecture can significantly improve key performance metrics, cut latency, and reduce load across downstream systems. In this walkthrough, we highlight the latest caching best practices and incorporate these design patterns into a reusable .NET application that y...

Learn how to implement API versioning in your .NET 10 applications using OpenAPI for better API management and documentation. The post Combining API versioning with OpenAPI in .NET 10 applications appeared first on .NET Blog.

Ubuntu 26.04 (Resolute Raccoon) ships today with .NET 10. Here's how to install .NET 10 from the archive, use the new -resolute container tags, build Native AOT apps, and install .NET 8 and 9 from the dotnet-backports PPA. The post What’s new for .NET in Ubuntu 26.04 appeared first on .NET Blog.

We are releasing .NET 10.0.7 as an out-of-band security update to address CVE-2026-40372. The post .NET 10.0.7 Out-of-Band Security Update appeared first on .NET Blog.

The C# Dev Kit team replaced C++ Node.js addons with C# and Native AOT, removing a dependency on Python. This post walks through building a Node.js native addon entirely in C# using N-API, LibraryImport, and UnmanagedCallersOnly. The post Writing Node.js addons with .NET Native AOT appeared first on...

A recap of the latest servicing updates for .NET and .NET Framework for April 2026. The post .NET and .NET Framework April 2026 servicing releases updates appeared first on .NET Blog.

Find out about the new features in .NET 11 Preview 3 across the .NET runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, container images, and more! The post .NET 11 Preview 3 is now available! appeared first on .NET Blog.

Introducing GitHub Copilot Modernization and diving into the assessment report as part of cloud modernization process The post Your Migration’s Source of Truth: The Modernization Assessment appeared first on .NET Blog.

ASP.NET Core 2.3 will reach end of support on April 7, 2027. Learn what this means for your applications and how to upgrade to a modern supported version of .NET. The post ASP.NET Core 2.3 end of support announcement appeared first on .NET Blog.

C# 15 introduces union types — declare a closed set of case types with implicit conversions and exhaustive pattern matching. Try unions in preview today and see the broader exhaustiveness roadmap. The post Explore union types in C# 15 appeared first on .NET Blog.

Announcement of Version 2 of Generative AI for Beginners .NET, a free course rebuilt for .NET 10 with Microsoft.Extensions.AI, updated RAG patterns, and new agent framework content across five structured lessons for building production-ready AI apps. The post Generative AI for Beginners .NET: Versio...

After ten months using GitHub Copilot Coding Agent (CCA) in dotnet/runtime, the .NET team shares data-driven lessons on cloud-AI-assisted development. The post Ten Months with Copilot Coding Agent in dotnet/runtime appeared first on .NET Blog.

Learn how custom-built AI agents are dramatically improving the .NET MAUI contribution workflow, reducing issue resolution time by 50-70% while increasing test coverage and code quality. The post Accelerating .NET MAUI Development with AI Agents appeared first on .NET Blog.

.NET MAUI 11 adds pin clustering to the Map control, automatically grouping nearby pins into cluster markers. Learn how to enable clustering, create separate clustering groups, and handle cluster taps on Android and iOS. The post Pin Clustering in .NET MAUI Maps appeared first on .NET Blog.

Guest blog post on building a real time assistant using OpenAI Realtime API using .NET, F#, Microsoft.Extensions.AI and .NET MAUI. The post RT.Assistant: A Multi-Agent Voice Bot Using .NET and OpenAI appeared first on .NET Blog.

See how the modernize-dotnet agent helps you assess apps, create upgrade plans, and modernize .NET projects from Visual Studio, VS Code, GitHub Copilot CLI, and GitHub. The post Modernize .NET Anywhere with GitHub Copilot appeared first on .NET Blog.