Preview of Microsoft .NET 9: C#, runtime, and SDK enhancements

SeniorTechInfo
2 Min Read

The Latest Updates in .NET 9 Preview 7

Microsoft has recently unveiled the .NET 9 Preview 7, bringing a host of new features and improvements to the popular framework. Let’s take a closer look at some of the key updates in this preview release.

Experimental Support for Scalable Vector Extension (SVE)

One of the highlights of this release is the experimental support for the Scalable Vector Extension (SVE), a SIMD instruction set designed for ARM64 CPUs. This addition opens up new possibilities for performance optimization on ARM64 architectures.

Strength Reduction in Loops

Another interesting feature introduced in the .NET 9 Preview 7 is a compiler optimization called “strength reduction” for loops. With this optimization, loop operations are replaced with faster, logically equivalent operations, improving overall performance.

Dynamic Adaptation to Application Sizes (DATAS)

The runtime in .NET 9 Preview 7 now includes Dynamic Adaptation to Application Sizes (DATAS) enabled by default. This feature allows for more efficient handling of application sizes, optimizing resource utilization.

Container Publishing Improvements in SDK

The SDK in this preview release includes container publishing improvements for insecure registries and more consistent environment variables for container publishing. Additionally, users now have access to workload sets, providing greater control over installed workloads and their update cadence.

Library Enhancements

Among the library improvements, the removal of BinaryFormatter is now complete due to security concerns. The preview also introduces the X509CertificateLoader class, offering a more streamlined approach to certificate loading. Moreover, the System.IO.Compression APIs now utilize zlb-ng, leading to more efficient and consistent processing across various hardware and operating systems.

These are just some of the exciting updates included in the .NET 9 Preview 7 release. Developers can explore these new features and enhancements to further enhance their .NET development projects.

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