Tag: dotnet

AWS Lambda now supports .NET 10, but the runtime upgrade is not the hard part. Here is a practical checklist covering cold starts, trimming, native AOT, and deployment shape.

How to filter GetAllNetworkInterfaces() in .NET 10 when virtual adapters from Hyper-V, Docker, WSL, and VPNs flood the list. Includes a two-stage filter with explicit tradeoffs.

The MongoDB EF Core provider now supports Queryable Encryption and vector search. Here is what that means for .NET 9 and .NET 10 apps that already use EF Core.

SwitchMediator v3 targets zero-allocation, AOT-friendly dispatch for .NET 9 and .NET 10 CQRS services. Here is what that means and how to benchmark your own mediator.

Use SearchValues in .NET 10 for high-performance multi-string searching. Replaces foreach loops with SIMD-accelerated matching using Aho-Corasick and Teddy algorithms.

.NET 9 introduces Task.WhenEach, which returns an IAsyncEnumerable of tasks as they complete. Here is how it simplifies processing parallel results as they arrive.

C# 13 finally eliminates the hidden array allocation behind params. You can now use params with Span, ReadOnlySpan, List, and other collection types for zero-allocation variadic methods.

.NET 9 introduces System.Threading.Lock, a dedicated lightweight synchronization primitive that replaces lock(object) with better performance and clearer intent.

Replace GroupBy with CountBy in .NET 9 for cleaner, more efficient frequency counting. Reduces allocations from O(N) to O(K) by skipping intermediate grouping structures.

In .NET 10, the JIT can stack-allocate small fixed-size arrays of value types, eliminating heap allocations and delivering up to 60% faster performance compared to .NET 9.