Microsoft announced the general availability of .NET 10, describing it as the most productive, modern, secure, and high-performance version of the platform to date. The release is the result of a year-long effort involving thousands of contributors and includes improvements across the runtime, libraries, languages, tools, frameworks, and workloads. The benefits can be seen even if you only use it as a drop-in replacement for .NET 9.
Some of the key improvements to the framework include:
JIT compiler enhancements: Better inlining, method devirtualization, and improved code generation for struct arguments
Hardware acceleration: AVX10.2 support for cutting-edge Intel silicon, Arm64 SVE for advanced vectorization with Arm64 write-barrier improvements reducing GC pause times by 8-20%
NativeAOT improvements: Smaller, faster ahead-of-time compiled apps
Runtime optimizations: Enhanced loop inversion and stack allocation strategies deliver measurable performance gains
Post-quantum cryptography: Expanded PQC support helps future-proof your applications against quantum threats while maintaining compatibility with existing systems
Enhanced networking: Networking improvements make apps faster and more capable
AI frameworks: Building AI-powered apps in .NET 10 is straightforward, from simple integrations to complex multi-agent systems
In addition to library and package features, C# 14 and F# 10 deliver powerful language improvements that make your code more concise and expressive. C# continues to be one of the world’s most popular programming languages, ranking in the top 5 in the 2025 GitHub Octoverse report.
Related platforms are also being updated to run on .NET 10, like Umbraco CMS version 17. So if you're running a prior version now is the time to upgrade!
