C# (.NET) Conference 2024: Main Announcements and Innovations

C# (.NET) Conference: Key Announcements That Will Change Development

This year, the annual conference on C# and the .NET platform, organized by Microsoft, brought developers many significant news. The event gathered thousands of professionals from around the world to discuss the future of one of the most popular ecosystems for creating applications. We have collected the main announcements that are already beginning to change the landscape of C# development.

.NET 9: A New Stage of Evolution

The central event of the conference was the presentation of the first public preview version of .NET 9. As expected, Microsoft is focusing on performance, cloud integration, and support for modern architectures. Key improvements include:

• JIT Compiler Optimization: A new level of just-in-time code optimization (Tiered PGO) promises a performance increase of up to 15% in real-world scenarios.
• Improved Memory Management: New APIs for working with Span and Memory have been introduced, reducing the load on the garbage collector in high-load systems.
• Native AOT Compilation: Expanded support for Ahead-of-Time compilation for console and web applications, allowing the creation of binary files with minimal startup time.

C# 13: New Language Features

Along with the platform, the language itself is being updated. The announced features of C# 13 are focused on simplifying code and improving its safety:

• Primary Constructor Fields: Fields can now be declared directly in the constructors of records and classes, reducing boilerplate code.
• Improved Lambda Expressions: Support for ref parameters and more flexible variable capture management.
• New Attributes for Null Checking: Additional tools for static analysis to help avoid NullReferenceException.

Developer Tools: Copilot and Dev Home

Microsoft also paid attention to tools that increase productivity. The main announcements in this area:

• GitHub Copilot for .NET: Expanded integration with Visual Studio and Rider. Copilot can now generate not only code but also unit tests, and suggest refactoring for new C# 13 features.
• Dev Home Widgets: New widgets for monitoring application performance directly on the Windows 11 desktop.
• Improved Hot Reload: Change compilation time has been reduced by 40% for large projects.

Cloud Technologies and AI Integration

The conference confirmed the trend of deep integration of .NET with the cloud and artificial intelligence. Announcements include:

• Azure AI SDK for .NET: A new package simplifying the use of GPT and DALL-E models in C# applications.
• Semantic Kernel: An update to the framework for creating AI orchestrators with support for C# plugins.
• Serverless Functions: .NET 9 Native AOT is now fully supported in Azure Functions, reducing cold start to milliseconds.

The conference concluded with the announcement of the .NET 9 release date — November 2024. Preview versions are already available for developers to test. The C# ecosystem continues to actively develop,