.NET 10: faster, smarter, more efficient
Update: written at Preview time, this article still holds, .NET 10 (LTS, 3 years of support) shipped in November 2025, and .NET 8 support ends on November 10, 2026. If you're still on .NET 8, the migration window is closing.
Microsoft unveiled .NET 10: an LTS release with 3 years of support, optimized performance and major additions through C# 14, ASP.NET Core, EF Core and MAUI.
🚀 Optimized performance
A faster .NET thanks to an improved JIT, the JIT compiler cuts abstraction and optimizes method calls, especially on arrays.
Less abstraction, more efficiency, smarter memory allocations to speed up execution and reduce resource usage.
AVX10.2 instruction support, better compute performance on recent CPUs.
🎯 Frameworks and APIs
C# 14: code faster and cleaner, nameof now works with generics, span conversions are simpler, lambdas are more flexible.
ASP.NET Core 10, better OpenAPI 3.1 support, richer Blazor (QuickGrid…), more efficient SignalR.
EF Core 10, a more intuitive ExecuteUpdateAsync and LINQ optimizations that speed up queries.
.NET MAUI, fixes and optimizations for better stability on Android, iOS, macOS and Windows.
🔒 Security and simpler development
Better certificate management, FindByThumbprint now accepts algorithms other than SHA-1: more flexible and more secure.
Faster compression with ZipArchive, lighter files that load faster.
Windows Forms, new clipboard APIs, improved serialization/deserialization.
Why migrate?
The previous LTS, .NET 8, reaches end of support on November 10, 2026. Moving to .NET 10 means longer support, the latest advances, and avoiding the emergency migration, the one that always happens under the worst conditions.
Takeaway: with .NET 10, Microsoft keeps pushing performance, simplifying development and strengthening security. Plan the migration instead of suffering it.
This article comes from one of my LinkedIn posts (in French), join the discussion ↗