.NET 11 Preview 3 has arrived with exciting improvements across the entire .NET ecosystem! This preview brings union type support in C#, Zstandard compression for ASP.NET Core, and significant enhancements to .NET MAUI including maps clustering, XAML improvements, and LongPressGestureRecognizer.
Visual Studio 2026 April Update (version 18.5.0) delivers a new era of IDE productivity with deep AI integration. The release includes GitHub Copilot agent skills that automatically discover repository-defined skills, smarter test generation, and the new Debugger Agent workflow that validates bugs against real runtime behavior. Windows Forms gets an Expert agent for智能化 development.
VS Code April 2026 releases (1.115 and 1.116) push further into agent-centric development with a new companion app, better terminal interaction, and GitHub Copilot now built-in as a standard feature rather than requiring extension installation.
Security Updates: Microsoft released April 2026 security updates for .NET addressing multiple CVEs including CVE-2026-33116 (Remote Code Execution), CVE-2026-26171 (Security Feature Bypass), and CVE-2026-23666 (Denial of Service). All .NET 10, 9.0, and 8.0 users should update immediately.
Azure MCP Tools now ship built into Visual Studio 2022 as part of the Azure development workload, providing over 230 tools across 45 Azure services directly in GitHub Copilot Chat without requiring a separate extension.
Stay tuned for more .NET updates!
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