What's New in .NET 10

27 April 2025 Khaled .NET, .NET 10, Microsoft

.NET 10 is shaping up to be another exciting milestone in Microsoft’s journey toward building a faster, more flexible, and developer-friendly platform. Building on the solid foundation of .NET 8 and .NET 9, .NET 10 focuses on cloud-native architecture, deeper AI integration, improved tooling, and language innovations in C# 14.

🚀 Key Highlights in .NET 10

  • 🌐 Native Cloud Support: Built-in patterns for Kubernetes, Dapr, and distributed app scenarios.
  • 🧠 AI-Native Frameworks: Integration with ONNX, Azure AI Studio, and native LLM runtimes.
  • ⚡ Unified Web Stack: Seamless Blazor + Razor + Web API experience, with component reuse.
  • 🎯 C# 14: More expressive syntax, performance-oriented improvements, and safer patterns.
  • 📦 Hot-Patchable Apps: Native AOT apps with delta patch support for runtime/live updates.
  • 🛡️ Hardened Security Defaults: Tighter sandboxing, improved JWT handling, and auth enhancements.

🧠 Deeper AI Integration

.NET 10 introduces seamless integration with machine learning workflows:

  • New System.AI namespace with first-class primitives.
  • Support for local inference using ONNX Runtime and ML.NET pipelines.
  • Improved interop with Python and TensorFlow via native bindings.

🔧 C# 14 Features (Preview)

  • Scoped parameters: Explicit lifecycle handling for method parameters.
  • Discriminated unions (DU): Inspired by F#, offering cleaner state modeling.
  • Inline lambdas with pattern guards: Combine filtering and logic inline.
  • Parameter packs: Advanced variadic parameters for generic delegates.

📱 MAUI Gets Smarter

  • Improved hot reload and XAML tooling
  • Support for adaptive layouts and gesture APIs
  • Better iOS and Android alignment with platform features

🔒 Security and Identity

  • Default HTTPS and stricter TLS 1.3 fallback
  • JWT token validation enhancements
  • Out-of-the-box support for OAuth2 PKCE and FIDO2

📈 Performance and Diagnostics

  • Improvements to Native AOT including reduced memory footprint
  • New dotnet trace and dotnet dump CLI features
  • Automatic memory profiling suggestions in Visual Studio

📅 Planned Release Schedule

  • Preview 1: July 2025
  • Preview 2: September 2025
  • RC: October 2025
  • GA: November 2025 (aligned with .NET Conf 2025)

🧪 Try It Yourself

You can experiment with .NET 10 preview builds by installing the latest SDK from the official .NET 10 downloads page and exploring the new features via the CLI:

dotnet new console --use-program-main --framework net10.0

🔚 Final Thoughts

.NET 10 is all about bridging productivity and performance with AI-readiness and cloud-native capabilities. Whether you're building microservices, real-time apps, or intelligent desktop/mobile solutions, .NET 10 aims to make it easier, safer, and faster.

Stay tuned for more updates as the .NET 10 journey evolves!

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