How to use EF Core 11 interceptors for auditing
Stamp CreatedBy/ModifiedOn columns and write a full change-trail with an ISaveChangesInterceptor in EF Core 11, including the DI lifetime, current-user, and ExecuteUpdate gotchas.
Tag: dotnet
243 posts · Page 4 of 25
GitHub Copilot SDK Hits GA: Embed Copilot's Agent Runtime in Your Own C# Apps
At Build 2026 GitHub shipped Copilot SDK 1.0 GA with a first-class .NET package. You can now drive the same planning, tool-calling, and multi-turn agent runtime from C# code, BYOK included.
How to organize minimal API endpoints with MapGroup in ASP.NET Core 11
A complete guide to structuring minimal APIs in ASP.NET Core 11 with MapGroup: per-resource endpoint modules as extension methods, nested groups, shared filters and auth, route-parameter prefixes, OpenAPI tags, and the filter-ordering rules that surprise people.
How to use HybridCache in ASP.NET Core 11 with Redis as the L2 cache
Wire HybridCache to a Redis L2 in ASP.NET Core 11: register the service, add the StackExchange Redis distributed cache, and let GetOrCreateAsync give you a two-tier cache with built-in stampede protection and tag invalidation.
How to validate request bodies in minimal APIs without controllers in ASP.NET Core 11
ASP.NET Core 11 has built-in validation for minimal APIs: call AddValidation, annotate your request record with DataAnnotations, and a source generator validates the bound model and returns 400 ProblemDetails before your handler runs. No controllers, no FluentValidation, no manual checks.
.NET 11 Gives MemoryCache First-Class OpenTelemetry Metrics
.NET 11 Preview 4 ships a built-in meter for Microsoft.Extensions.Caching.Memory, so cache hit ratio and evictions flow into OpenTelemetry without a background poller.
Microsoft Agent Framework vs Semantic Kernel for a Greenfield .NET Agent
For a new .NET agent in 2026, start on Microsoft Agent Framework 1.0. Semantic Kernel is in maintenance mode. Here is the side-by-side and the one case where SK still wins.
Migrate from ValueTask<T> back to Task<T>: when and why (.NET 11, C# 14)
A practical checklist for reverting ValueTask and ValueTask<T> return types to Task and Task<T>, what breaks at the call sites, how to verify each change, and how to know whether the swap was ever worth it.
Migrate a Blazor Server app to Blazor United (Blazor Web App) in .NET 11
A step-by-step checklist to move a standalone Blazor Server app to the unified Blazor Web App template on .NET 11, keeping every page on InteractiveServer with zero behaviour change.
Migrate from in-process Azure Functions to the isolated worker model (.NET 8 / .NET 11)
A step-by-step checklist to move a .NET in-process Azure Functions app to the isolated worker model before the November 10, 2026 retirement, with csproj diffs, signature rewrites, and a slot-swap rollout.