.NET Core Articles, Tutorials & News
.NET Core articles, tutorials, and news from the DotNetNews archive.
1453 articles Updated
Start here
Editor picks for .NET Core
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Microservices Communication with RabbitMQ and .NET Core
ngcheehou.medium.com Issue #502
Basic microservices messaging material, but still useful for readers new to RabbitMQ patterns in .NET.
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Hangfire Jobs in .NET Core: Complete Guide to Background Job Processing
c-sharpcorner.com Issue #501
Good refresher on Hangfire fundamentals if you need reliable background processing without building the plumbing yourself.
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[.NET Versions Explained]: Confusion- .Net
medium.com Issue #496
Good refresher for readers still untangling the .NET family tree and naming history.
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Dependency Injection in .NET Core
medium.com Issue #494
Beginner-friendly DI refresher, especially for folks who know the syntax but not the reasoning.
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ASP.NET MVC to ASP.NET Core Migration NuGet Packages: Modernization Guide
faciletechnolab.com Issue #478
Useful modernization inventory for teams sorting what survives an MVC to Core move.
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Top .NET Core Background Job Tools
faciletechnolab.com Issue #475
Useful survey material for teams choosing between simple job runners and broader workflow orchestration platforms.
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C#: Should This Service Be Singleton, Scoped, or Transient?
pietschsoft.com Issue #472
Singleton vs. Scoped vs. Transient is deceptively simple; wrong choice breaks concurrency or leaks state.
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Reverse Engineering an API in .NET Core – Complete Practical Example
c-sharpcorner.com Issue #472
Reverse engineering undocumented APIs is sometimes necessary; document your own APIs instead.
.NET Core tutorials from the DotNetNews archive, curated for .NET developers who already ship production code. This is a reading list pulled from daily issues, not a substitute for the official docs on .NET Core.
Use Start here for the editorial shortlist, then browse Latest or the full archive when you need more depth. Coverage leans toward cross-platform .NET, .NET Core migration, building. Recent pieces worth opening: “Building a Streaming, Low-Allocation Excel Writer in .NET” and “The Migration That Lied for Two Years”.
Every item links out to the original publisher and back to the DotNetNews issue where it ran.
Latest
Newest .NET Core from the archive
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Building a Streaming, Low-Allocation Excel Writer in .NETc-sharpcorner.com Issue #504
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The Migration That Lied for Two Yearsrogerkeizer.medium.com Issue #504
- OpenTelemetry in .NET: End-to-End Distributed Tracing Explained
c-sharpcorner.com Issue #503
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Announcing .NET Modernization for Beginnersdevblogs.microsoft.com Issue #503
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Threading on Thin Ice: Demystifying the .NET ThreadPool and avoiding starvationtruestorydavestorey.medium.com Issue #502
- Microservices Communication with RabbitMQ and .NET Core
ngcheehou.medium.com Issue #502
Archive
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Newest first
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Building a Streaming, Low-Allocation Excel Writer in .NET
c-sharpcorner.com Issue #504
Build a high-performance, low-allocation Excel writer in .NET using streaming, IBufferWriter , and OOXML internals. Achieve 8-10x speed and 30-100x less memory.
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The Migration That Lied for Two Years
rogerkeizer.medium.com Issue #504
How an outdated CLI tool left behind a corrupt EF Core snapshot — and why a major upgrade finally exposed it
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Introducing Saucery.NuGet: Controlled NuGet Upgrades for Modern .NET Repositories
medium.com Issue #503
Keeping NuGet dependencies up to date should be simple.
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OpenTelemetry in .NET: End-to-End Distributed Tracing Explained
c-sharpcorner.com Issue #503
Master OpenTelemetry in .NET for end-to-end distributed tracing. Gain visibility, troubleshoot faster, and optimize microservices.
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Announcing .NET Modernization for Beginners
devblogs.microsoft.com Issue #503
We've built a new course to help you navigate the journey when you're the owner of an application built on a legacy .NET framework and it needs to be modernized. The whole concept of modernization is ...
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Asynchronous Data Annotations Validation in .NET 11 with MongoDB
medium.com Issue #503
With the .NET 11 release just around the corner, I wanted to explore its new features and capabilities by reading the preview release…
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Building AI-Powered Applications with OpenAI Responses API and .NET
c-sharpcorner.com Issue #503
Learn to build AI-powered .NET apps using OpenAI's Responses API. Integrate AI for chatbots, content generation, and more with practical examples.
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Threading on Thin Ice: Demystifying the .NET ThreadPool and avoiding starvation
truestorydavestorey.medium.com Issue #502
Introduction
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Microservices Communication with RabbitMQ and .NET Core
ngcheehou.medium.com Issue #502
One of the key characteristics of a microservices architecture is that each service owns its own database. Rather than sharing a single…
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Hangfire Jobs in .NET Core: Complete Guide to Background Job Processing
c-sharpcorner.com Issue #501
Master Hangfire in .NET Core for reliable background job processing. Learn configuration, job types, DI, queues, and modern features for scalable apps.
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Memory discipline and GC awareness in .NET
csharpdigest.net Issue #500
avoid frequent collection cycles causing latency spikes and wasted CPU time
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Orleans Framework Tutorial: Building Distributed Applications in .NET
c-sharpcorner.com Issue #499
Master .NET distributed apps with Orleans! Learn the Virtual Actor Model for scalable, fault-tolerant, and stateful systems.
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Optimizing I/O Performance in .NET
dotnettips.com Issue #498
I/O operations impact application responsiveness, scalability, and costs. Enhancing file access, HTTP requests, and networking improves user experience while reducing resource consumption. This chapte...
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The Fasting Developer: Memory Discipline and GC Awareness in .NET
binaryintellect.net Issue #498
There is a quiet assumption baked into most .NET codebases: the Garbage Collector will always clean up. And technically, it will. But the cost of that cleanup — paid in latency, in CPU time, in unpred...
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Improvements to reading Process outputs: Exploring the .NET 11 preview - Part 5
andrewlock.net Issue #498
In this post I show some of the improvements to the Process API in .NET 11 for running processes and reading their outputs without risk of deadlock
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How to guide agents during production investigations with .NET CLI
csharpdigest.net Issue #498
AI agents can drive .NET diagnostic tools the same way a senior developer would
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Self-ordering modules: discovered, Kahn-ordered, and extractable
medium.com Issue #497
A module declares its name and its dependencies. The framework discovers every module, sorts them with Kahn’s algorithm, and registers…
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Don’t rewrite your CLI for agents
developer.microsoft.com Issue #497
There’s advice making the rounds: replace your CLI args with a single --json payload so agents can use your tool more effectively. The thinking being, that agents already think in structured formats, ...
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Dapr Workflow Engine: Building Durable Distributed Applications
c-sharpcorner.com Issue #497
Dapr Workflow Engine simplifies durable distributed applications by managing state, retries, and recovery for complex business processes.
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Event-Driven Systems in .NET, Python, and Go: A Practitioner’s Comparison
topuzas.medium.com Issue #497
I have built event-driven systems in all three of these ecosystems, not as a research exercise but because different jobs put different…
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Building Internal AI Tools with Azure AI Foundry and .NET
c-sharpcorner.com Issue #497
Build internal AI tools with Azure AI Foundry & .NET for enhanced productivity, faster info access, and streamlined operations. Secure, scalable, and intelligent.
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Domain-Driven Design (DDD)
medium.com Issue #497
Prerequisite Note: While this tutorial is implemented using .NET and the Clean Architecture, the DDD concepts explored here are universal…
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Microsoft Releases Agent Skills for .NET
c-sharpcorner.com Issue #497
Microsoft releases Agent Skills for .NET, enabling developers to package reusable domain expertise, scripts, and instructions that AI agents can discover and use on demand.
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[.NET Versions Explained]: Confusion- .Net
medium.com Issue #496
Do you know the difference between .NET, .NET Standard, .NET Framework, .NET Core, ASP.NET, and ASP.NET Core? Do you know why each exists…
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️ Modernizing .NET — Part 32: When Four Architectures Coexist
medium.com Issue #495
A framework migration can use layered design, modular boundaries, middleware flow, and service contracts without treating them as rivals.