.NET 10 Preview 6 lands with APIs, logging, AI
A mixed issue with .NET 10 Preview 6, API problem details, middleware, logging performance, Aspire metrics, and Copilot/MCP demos.
Jasen's top three picks
- 1 .NET 10 Preview 6 is now available!
devblogs.microsoft.com
Preview 6 brings fresh .NET 10 details worth tracking before release.
- 2 Adopting Problem Details for HTTP APIs
blog.codingmilitia.com
Problem Details is a practical API upgrade; middleware and roles round out the hardening story.
- 3 ️ How I Used Custom Middleware to Solve 5 Real Problems in .NET Core
medium.com
Logging performance, Aspire metrics, and Copilot/MCP show where dev productivity and observability are heading.
Editor's note
I kept this issue deliberately mixed: platform preview news, API hardening, performance, and a good helping of AI tooling. The .NET 10 Preview 6 items and the Problem Details article are the kind of updates I always want in front of working developers right away. I also liked the logging and Aspire pieces because they speak to the day-to-day reality of making apps observable and fast.
Today's articles
.NET 10 Preview 6 is now available!
devblogs.microsoft.com
https://devblogs.microsoft.com/dotnet/dotnet-10-preview-6/
Topics: .NET 10
Read articleAdopting Problem Details for HTTP APIs
blog.codingmilitia.com
https://blog.codingmilitia.com/2025/07/15/adopting-problem-details-for-http-apis/
Topics: ASP.NET Core REST API
Read article️ How I Used Custom Middleware to Solve 5 Real Problems in .NET Core
medium.com
https://medium.com/@sunita.rawat.cgi/️-how-i-used-custom-middleware-to-solve-5-real-problems-in-net-core-6ed6b4a49805
Topics: .NET Core
Read articleMigrating to Brighter V10 with RabbitMQ
medium.com
https://medium.com/@actor-swe/migrating-to-brighter-v10-with-rabbitmq-eeebebb4462d
Topics: RabbitMQ Service Bus
Read articleOnly Admins Allowed: How to Lock Down Your REST API with Roles
medium.com
https://medium.com/dot-net-sql-learning/only-admins-allowed-how-to-lock-down-your-rest-api-with-roles-b6845cf74b1e?source=rss------dotnet-5
Topics: Authorization REST API Security
Read articleGo vs. .NET: What you have missed on...
medium.com
https://medium.com/@hasanmcse/go-vs-net-what-you-have-missed-on-418583f66ee0
Read article20x faster logging in .NET — but you need to sweat for it
medium.com
https://medium.com/@vikpoca/20x-faster-logging-in-net-but-you-need-to-sweat-for-it-3ddfdf7db988
Topics: Performance Serilog
Read articleUsing GitHub Copilot and MCP servers to NOT write code
youtube.com
https://www.youtube.com/watch?v=VdYR_Qf-j38
Topics: GitHub GitHub Copilot
Read articleC# and Machine Learning: Building Simple AI Application with ML.NET
medium.com
https://medium.com/@saifullahhakro/c-and-machine-learning-building-simple-ai-application-with-ml-net-87175736d887
Read articleCustom Metrics with .NET Aspire
youtube.com
https://www.youtube.com/watch?v=mwxJBv0kmcg
Topics: Application Insights .NET Aspire
Read articleBuilding a Multi-Agent AI System in C#: The Coordinator-Worker Pattern
medium.com
https://medium.com/@orbens/building-a-multi-agent-ai-system-in-c-the-coordinator-worker-pattern-a2577a67fa2c
Topics: OpenAI Semantic Kernel
Read articleUpdates to Warning Suppressions in Microsoft C++ Code Analysis
devblogs.microsoft.com
https://devblogs.microsoft.com/cppblog/updates-to-warning-suppressions-in-microsoft-c-code-analysis/
Topics: C# .NET Framework
Read article7 Elite C# Libraries Microsoft Uses in Production (But You Probably Don’t)
medium.com
https://medium.com/@mohsho10/7-elite-c-libraries-microsoft-uses-in-production-but-you-probably-dont-6bce3e3690ad
Topics: C# Performance
Read articleWhat Is An Entity? | Domain-Driven Design, Clean Architecture, .NET 9
medium.com
https://medium.com/@michaelmaurice410/what-is-an-entity-domain-driven-design-clean-architecture-net-9-024cfc9b2224
Topics: Clean Architecture Domain-Driven Design .NET 9
Read articleUnderrated .NET packages that will save you 100s of lines of code
medium.com
https://medium.com/@freakyali/underrated-net-packages-that-will-save-you-100s-of-lines-of-code-3ee34d0d7f0e
Topics: .NET Core Performance
Read articleWhat Is CrewAI?
c-sharpcorner.com
https://www.c-sharpcorner.com/article/what-is-crewai/
Read article.NET 10 Preview 6 Unboxed - Blazor State Persistence, Passkey, & What is DNX?
youtube.com
https://www.youtube.com/watch?v=enDEOSAr9YA
Read articleC# 13: The Complete Developer’s Guide to Revolutionary Language Features
medium.com
https://medium.com/@hpultimatemedia/c-13-the-complete-developers-guide-to-revolutionary-language-features-3f95a3b0c444
Read articleGetting Started with Docker Offload
c-sharpcorner.com
https://www.c-sharpcorner.com/article/getting-started-with-docker-offload/
Read articleEnriching Swagger Docs for Minimal APIs Using Generic Metadata
medium.com
https://medium.com/@vlad.ganuscheak/enriching-swagger-docs-for-minimal-apis-using-generic-metadata-26c198f31020
Topics: ASP.NET Core Minimal APIs
Read articleUnderstanding .NET MVC
c-sharpcorner.com
https://www.c-sharpcorner.com/article/understanding-net-mvc/
Topics: ASP.NET MVC
Read article