🚀 Daily .NET News Update — May 04, 2026

Welcome to today's curated roundup of the latest .NET, C#, and Microsoft developer ecosystem news! Here are the most interesting developments from the past few days.

🔥 .NET 11 Preview 3: Major Runtime and Framework Updates

Microsoft released .NET 11 Preview 3 with significant improvements across the entire stack. Key highlights include:

Runtime Performance: JIT optimizations with branchless multi-target switch expressions, fewer bounds checks, and faster unsigned int casts on legacy x86
Async Without Preview Flags: Runtime async features no longer require the preview features flag — net11.0 projects can enable runtime-async independently
ASP.NET Core Enhancements: Zstandard compression enabled by default for requests/responses, Blazor Virtualize now adapts to measured item heights at runtime, and Kestrel starts processing HTTP/3 requests without waiting for the control stream to reduce first-request latency
EF Core Improvements: New GetEntriesForState API on ChangeTracker and helpers for easier provider swapping in tests

🎨 SkiaSharp 4.0 Preview 1: Revolutionary Graphics for .NET

A game-changing release for cross-platform .NET graphics! SkiaSharp 4.0 brings:

Uno Platform Joins as Co-Maintainer: Strengthening cross-platform rendering consistency across Windows, iOS, Android, macOS, Linux, and WebAssembly
Variable Fonts: Full OpenType axis control via HarfBuzzSharp — dynamically vary weight, width, and other axes without shipping multiple font files
Enhanced Rendering: Sharper downscaling with mipmap sharpening, automatic photo orientation (Exif support), and improved large image handling
Color Font Palettes: Support for CPAL palettes enabling richer emoji and icon visuals

This is a foundational upgrade for MAUI, WinUI 3, WPF, and Blazor WebAssembly applications using SkiaSharp graphics!

💼 GitHub Copilot Shifts to Usage-Based Billing

Starting June 1, 2026, GitHub Copilot moves to usage-based billing with GitHub AI Credits:

Every plan includes monthly AI Credits; additional usage is billed at token-based rates
Code completions and Next Edit suggestions remain included in all plans
Copilot code review will consume GitHub Actions minutes in addition to AI Credits
Model access changes: Opus models removed from Pro tier (Pro+ retains access)

Impact for .NET developers: If you use Copilot extensively for agentic workflows or complex code generation, expect changes in monthly costs. Consider monitoring token usage and adjusting workflows for efficiency.

🖥️ Visual Studio 2026 April Update: Cloud Agents and AI Workflows

The April 2026 update (v18.5) brings enhanced GitHub Copilot integration:

Cloud Agent Integration: Start remote coding sessions directly from VS — agents can create GitHub issues, clone repos, implement tasks, and open PRs while you work locally
User-Level Agents: Agents that travel across projects (stored in %USERPROFILE%/.github/agents/)
IntelliSense Priority Over Copilot: When IntelliSense is active, Copilot suggestions are suppressed to avoid UI conflicts — cleaner editing experience
SDK-Style VSIX Projects: Up to 75% faster builds for Visual Studio extensions with SDK-style project support

📱 .NET MAUI 10.0.60: Stability and Quality Release

A marquee maintenance release with 242 commits of fixes and improvements:

Fixed LayoutCycleException with nested Borders and CollectionView stability
BlazorWebView template consistency improvements
Material3 support for ImageButton on Android
Enhanced CollectionView selection, grouping, and footer handling across all platforms
Windows WebView fixes for HybridWebView scenarios

🤖 Building AI Apps with .NET: ConferencePulse Example

Microsoft's new guide demonstrates building an AI-powered conference app using .NET's composable AI stack:

Unified AI pipeline via Microsoft.Extensions.AI (IChatClient) working across OpenAI, Azure OpenAI, Ollama, Foundry Local, and more
Six-project architecture: UI/UX, core models, ingestion/vector search, AI agents, MCP tooling, and Aspire-based app host
Real-time features: live polls, AI-powered Q&A with RAG, and auto-generated insights

📌 Action Items for Today

Security Alert: Update to Microsoft.AspNetCore.DataProtection 10.0.7 immediately if using ASP.NET Core on non-Windows — fixes critical CVE-2026-40372
Upgrade Consideration: Evaluate .NET 11 Preview 3 for testing ahead of November 2026 GA
Budget Planning: Review GitHub Copilot usage patterns in preparation for June's billing changes
Graphics Enhancement: Try SkiaSharp 4.0 Preview 1 for improved rendering quality

Stay tuned for tomorrow's updates! Follow #dotnet, #csharp, and #net-ai for the latest developments.

#dotnet #csharp #aspnet #visualstudio #vs-code #azure #github-copilot #maui #blazor #net-ai