NET 9 released
Useful news for all developers: .NET 9.0 has officially launched! With this release, Microsoft is taking the .NET platform to the next level, with new features, improved performance and a focus on productivity and scalability. Whether you're an experienced .NET developer or new to the world of C#, this release offers something for everyone.
Here's what you need to know about .NET 9.0.
Key Changes in .NET 9.0
Performance improvements in the runtime
The runtime of .NET 9.0 returns to vectorization and provides support for new silicon technologies, including Arm64 SVE and Intel AVX10. In addition, the runtime is hardware-accelerated, resulting in faster performance. The RyuJIT compiler specifically improves performance for Arm64, loops, Profile Guided Optimization (PBO) and bounds-checks. Exception handling has also been greatly improved: exceptions are now 50% faster thanks to using the same model as Native AOT.
Dynamic Profile Guided Optimization (PGO)
Dynamic PGO in .NET 9.0 has been optimized to handle more code patterns efficiently. The JIT compiler generates fast execution paths for typecasts, such as (IFoo)myFoo and myFoo is IFoo. This results in faster code, up to 70% faster for certain buffer operations. Keep in mind, however, that these improvements must disable ReadyToRun to work.
LINQ optimizations
Commonly used LINQ methods, such as Take and DefaultIfEmpty, have been significantly accelerated. For empty arrays or collections, these methods are up to 10 times faster. In addition, Enumerable.SequenceEqual has been further optimized for List<T> by using more efficient iterations and vectorization via spans.
Improvements in System.Text.Json
System.Text.Json has received significant performance upgrades, with more than 50% improvements in common operations. Examples include:
JsonProperty.WriteTo now writes UTF8 bytes directly, avoiding string allocations.
The new JsonMarshal.GetRawUtf8Value API returns UTF8 bytes, which is more efficient than JsonElement.GetRawText.
JsonObject can now predetermine the correct size for the underlying data structure, which prevents reallocation.Improved AI integration
AI is playing an increasing role in software development, and .NET 9.0 provides built-in support for AI models via ONNX and integration with Azure AI tools. This makes it easy to add machine learning to your applications. For example, consider a recommendation system that can directly use AI models without external dependencies.
Improved C# language features
.NET 9.0 introduces C# 13, which offers new syntax improvements and features such as parameter patterns, improvements in interpolated strings and records with inheritance. This makes your code more readable, concise and easier to maintain.
Cross-Platform: More Focus on MAUI
.NET MAUI (Multi-platform App UI) lets you build native applications for Windows, macOS, iOS and Android. The new version offers improved tooling and flexibility for designing user interfaces, with support for dynamic themes and faster UI rendering.
Cloud-Native Development
With improved tools for cloud-native development and support for DAPR (Distributed Application Runtime), .NET 9.0 makes it easier to build distributed systems. In addition, containerization is more accessible than ever thanks to integrated Docker tools.
MijnHostingPartner.co.uk Supports .NET 9.0
At MijnHostingPartner.nl, we understand the importance of the latest technologies for our customers. Therefore, starting today, we are supporting .NET 9.0 on our .NET Core packages. This means you can get started with the latest version right away and enjoy the benefits it offers, such as better performance and a future-proof development environment. If you have already selected the .NET Core via the extensions, then you do not need to perform any further action on our side; .NET 9.0 is already active automatically. Your own application still needs to be updated to the latest version.
Why upgrade to .NET 9.0?
If you are still using an older version of .NET, now is the ideal time to upgrade. .NET 9.0 offers improved compatibility, lower costs thanks to performance improvements and advanced tools to make your applications future-ready.
How Do You Get Started?
Download .NET 9.0 from the official Microsoft .NET website.
Update your projects in Visual Studio 2024, which fully supports .NET 9.0.
Test your applications thoroughly, especially if you're using older libraries.
Upload the updated application to our NET Core hosting .NET Core hosting packages and publish, the application is immediately viewable around the world after this.
Need hosting that supports .NET 9.0? Then choose MijnHostingPartner.nl and take advantage of our reliable and scalable platform.
.NET 9.0 is more than an update; it is a leap forward for modern software development. With AI integration, cross-platform tools and improved performance, this release provides everything you need to build world-class applications. At MijnHostingPartner.co.uk, we are ready to support you in implementing .NET 9.0 on our servers.
Start building the future today and get your .NET Package to take advantage of it right away!
