Home Archive API versioning, observability, and C# basics – .NET News Daily Issue #231 (Jul 2, 2025)

Editor's note

I kept this issue deliberately mixed, from architecture and API versioning to GC latency and beginner-friendly C# topics. The latency piece on background GC and the LOH is especially useful if you’re chasing production performance issues, and the observability article is a good fit for microservices teams.

API versioning, observability, and C# basics

Hold onto your keyboards, it's Wednesday—the midweek marvel balancing act where your code's a puzzle and you're the solver. Today, we're shifting gears and cruising through some top-notch .NET content that'll revamp your development toolkit without the check engine light. As you scroll on, expect a turbo boost of insights that'll keep your projects hitting green lights all the way through this delightful uphill.

Today's Articles

Design Patterns Guide in .NET Using C# -Part I: Detailed explanation

https://medium.com/@bhargavkoya56/design-patterns-guide-in-net-using-c-part-i-detailed-explanation-7ed837f3fafe?source=rss------dotnet-5

Design patterns represent proven solutions to recurring software design problems, providing developers with a structured approach to…

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Why .NET Core Cannot Run Directly on the JVM

https://medium.com/@hasanmcse/why-net-core-cannot-run-directly-on-the-jvm-b103868319d7

If you’re a .NET developer wondering why your C# code can’t just run on the Java Virtual Machine (JVM), this article breaks it down simply…

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Read This Before Your Next .NET Core Interview — You’ll Thank Me Later

https://medium.com/@talhaawan78654321/read-this-before-your-next-net-core-interview-youll-thank-me-later-5ddcac0d8504

By a .NET Developer Who’s Sat on Both Sides of the Table

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API Versioning in .NET

https://medium.com/@shreyans_padmani/api-versioning-in-net-a0f01e7c610b

API versioning is crucial for maintaining and evolving your APIs without breaking existing clients. In this post, we’ll walk through how…

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The Bug Hid Behind a Guid — Until We Fired It With One Line of Code

https://medium.com/@michaelmaurice410/the-bug-hid-behind-a-guid-until-we-fired-it-with-one-line-of-code-c23d4d0f0bab

You’ve seen this snapshot in every code review: GetOrder(Guid orderId, Guid customerId, Guid productId) One wrong copy-paste, and the DB…

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Mastering .NET Architecture

https://www.c-sharpcorner.com/article/mastering-net-architecture/

This article explains the layers of .NET architecture in a simple, beginner-friendly way. Each layer is described with real-world examples to help understand how .NET applications are built

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💻 Issue 468 - Diagnosing Latency in .NET: Background GC and the Large Object Heap

https://dotnet.libhunt.com/newsletter/468

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Exception Handling and Logging in C# — Complete Beginner-to-Advanced Guide

https://medium.com/@fahimshahariar.fs/exception-handling-and-logging-in-c-complete-beginner-to-advanced-guide-b8c250c6cd4f

Master exception handling and logging in C#. Learn how to write reliable apps with try-catch blocks, custom exceptions, and Serilog

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20 Signs Your C# Code Is Too Complex (And How to Fix Them)

https://medium.com/@ashokreddy343/20-signs-your-c-code-is-too-complex-and-how-to-fix-them-8741cc1142d1

✅ Introduction Continue reading on Towards Dev »

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Advanced Observability in .NET Microservices

https://medium.com/@venkataramanaguptha/advanced-observability-in-net-microservices-749268ddf1cc

In today’s landscape of distributed systems, observability isn’t a “nice-to-have” — it’s a critical capability. As your .NET microservices…

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Let's Learn MCP: C#

https://www.youtube.com/watch?v=4zkIBMFdL2w

<img src="https://cdn.dotnetnews.co/imports/b58f090636d171f0f76c2a435863bedfa9c3549bdc13e86f9e40399b8edffb25.jpg" width="100%" style="display:block" class="hide-on-mobile" data-bit="iit" alt="Article preview"s Learn MCP: C#" height="200" loading="lazy" decoding="async">

C# Indexers Explained: Like Arrays, But Smarter!

https://medium.com/dot-net-sql-learning/c-indexers-explained-like-arrays-but-smarter-665f88596de1

Have you ever wanted to use your class like an array? For example, to access data directly using myObject[0]? Then the Indexer is for you… Continue reading on Dot Net, API & SQL Learning »

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Building a Windows PC Cleaner with WPF, C#, and Gemini’s Help

https://medium.com/@artillustration391/building-a-windows-pc-cleaner-with-wpf-c-and-geminis-help-6426c27e9e8c?source=rss------csharp-5

Ever wished you had a simple tool to keep your Windows PC running smoothly? I certainly have! The idea of a custom PC cleaner app — one…

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.NET Channels as a In-Memory Message Bus – Beware!

https://codeopinion.com/net-channels-as-a-in-memory-message-bus-beware/

If you’re looking at using .NET Channels as a replacement for a MediatR, or if you’re not in .NET but searching for an in-memory producer-consumer API, hang on a second—because you might be in for a p...

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.NET Base Class Library(BCL)

https://www.c-sharpcorner.com/article/net-base-class-librarybcl/

The most commonly used .NET Base Class Library (BCL) namespaces: System and System.IO

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C# Tuples: The No-Nonsense Guide to Better Code

https://towardsdev.com/c-tuples-the-no-nonsense-guide-to-better-code-646427489265

Master tuples with practical examples to streamline your projects. Continue reading on Towards Dev »

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## Automating Excel Reports with C# and ChatGPT: A Developer's Guide

https://medium.com/@brunogomes_97453/automating-excel-reports-with-c-and-chatgpt-a-developers-guide-c1fbc402762a

<img src="https://cdn.dotnetnews.co/imports/1ba32ff2304fad9ef87f51905cfa86bfbde85c6f6a1cce964efc6ef6d5bb6a44.jpg" width="100%" style="display:block" class="hide-on-mobile" data-bit="iit" alt="Article preview"s Guide" height="200" loading="lazy" decoding="async">

Jasen's take on today's picks

Design Patterns Guide in .NET Using C# -Part I: Detailed explanation

A solid opening piece on design patterns in .NET if you want a structured refresher rather than just code samples.

Why .NET Core Cannot Run Directly on the JVM

The GC latency article stands out for practical production debugging around background GC and the LOH.

Read This Before Your Next .NET Core Interview — You’ll Thank Me Later

API versioning is always worth revisiting, especially when your clients outlive your release cycle.

API Versioning in .NET

Observability in microservices is timely; this is the kind of guidance that helps before incidents start.

The Bug Hid Behind a Guid — Until We Fired It With One Line of Code

The MCP C# video adds a newer angle for readers following AI-adjacent tooling.

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