The .NET News Daily Issue #387

https://devblogs.microsoft.com/cosmosdb/how-to-enable-microsoft-entra-id-for-azure-cosmos-db-nosql/

Strengthen Identity Security and Eliminate Account Keys Identity is becoming the new security perimeter. As organizations modernize their cloud applications, long‑lived secrets and shared keys introdu...

https://www.youtube.com/watch?v=KRBqLjRjX70

https://antondevtips.com/blog/getting-started-with-dotnet-aspire-13-building-and-deploying-an-app

Learn how to build and run a minimal API with Aspire 13 and .NET 10, using PostgreSQL and Redis. We wire resources in AppHost.cs, use HybridCache for caching, and launch everything via the Aspire CLI

https://olegkarasik.wordpress.com/2026/02/02/net-rd-digest-january-2026/

This issue includes bits of philosophy, AI, tools, software development, performance, diagnostics, security, architecture and of course .NET and .NET Internals.

https://medium.com/@curiosity.orbit/gc-didnt-save-me-how-i-leaked-resources-even-though-net-has-garbage-collection-642dcdd1e61e?source=rss------dotnet-5

“GC will clean it up eventually, right?”

https://medium.com/@nowsath.ns/why-i-combined-redis-pub-sub-with-in-memory-cache-instead-of-just-moving-everything-to-redis-f496cc9dcb1f?source=rss------dotnet-5

Most engineers, when they hit scaling issues, think: “Let’s move everything to Redis. Problem solved.”

https://azure.microsoft.com/en-us/blog/postgresql-on-azure-supercharged-for-ai/

From GitHub Copilot AI assistance to built-in model management, Azure is helping devs and enterprises unlock the full potential of PostgreSQL. The post PostgreSQL on Azure supercharged for AI appeare...

https://medium.com/@curiosity.orbit/why-choosing-classes-over-structs-almost-broke-my-net-app-and-how-value-types-saved-it-70ae8e69111f?source=rss------dotnet-5

“Why did my API suddenly slow down under load, even though nothing in the code changed?”

https://medium.com/codex/cqrs-with-net-10-2026-build-systems-that-dont-double-charge-don-t-oversell-96fdbfc9be8e?source=rss------dotnet-5

A practical, production-minded guide with creative scenarios, sharp rules, and copy-paste checklists Continue reading on CodeX »

https://medium.com/@wiemks408/func-task-vs-eventcallback-they-look-the-same-until-the-ui-gets-involved-ad50e5b043b6?source=rss------dotnet-5

“It’s async. It compiles. It works.” So why does Blazor insist on having EventCallback?

https://medium.com/@kavathiyakhushali/orchestrating-durable-ai-agents-in-net-bbb57356b526?source=rss------csharp-5

In modern AI systems, it’s not enough for agents to handle single requests — they must coordinate complex, multi-step workflows that can… Continue reading on GoPenAI »

https://damienbod.com/2026/02/02/use-client-assertions-in-asp-net-core-using-openid-connect-oauth-dpop-and-oauth-par/

This post looks at implement client assertions in an ASP.NET Core application OpenID Connect client using OAuth Demonstrating Proof of Possession (DPoP) and OAuth Pushed Authorization Requests (PAR). ...

https://medium.com/@matteo.davena/building-your-first-ai-agent-in-c-with-microsoft-agent-framework-1297e0c217f9?source=rss------csharp-5

From chatbot to agent in 15 minutes — a practical guide for .NET developers

https://dotnettips.wordpress.com/2026/02/07/string-performance-why-some-string-searches-are-slower-than-you-think/

String searching is fundamental to modern applications, yet its performance impact is often overlooked. This article explores how common string search patterns can quietly slow down your code—and how ...

https://medium.com/@mmmsonu/dlq-dead-letter-queue-handling-with-azure-eventhub-a11ef545038e?source=rss------dotnet-5

https://medium.com/@wbayrakvlad/hello-today-were-going-to-talk-about-a-feature-that-allows-us-to-significantly-improve-d5fd0b9a1ba2?source=rss------dotnet-5

Why in-memory databases fall short and how Testcontainers help you test integration scenarios against real databases