dotInsights | August 2025

Rachel Appel

Did you know? A feature of C# is null-coalescing operators. The ?? operator (null-coalescing operator) returns the left-hand operand if it is not null; otherwise, it evaluates and returns the right-hand operand. The ??= operator (null-coalescing assignment operator) assigns the right-hand operand’s value to the left-hand operand only if the left-hand operand is null.

Welcome to dotInsights by JetBrains! This newsletter is the home for recent .NET and software development related information.

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Here’s the latest from the developer community.

• Legacy Code Refactoring for Testability: Replace Supplier with Supplies 🎥 – Emily Bache 
• Getting Started with MCP (Model Context Protocol) 🎥 – Nick Chapsas
• MIND Principles: Write Code Easy to Test 🎥 – Gui Ferreira
• Using Architecture Tests for CancellationTokens and sealed classes – Steven Giesel
• Sarah Dutkiewicz on EventStorming [EPISODE 862] 🎥 – David Giard
• Simplify Your .NET Development with Aspire and Aspire Dashboard – Joseph Guadagno
• Pattern-based C#: if it quacks like a duck…🎥  – Eva Ditzelmüller & Stefan Pölz (NDC Oslo 2025)
• Thinking Functionally with C# 🎥 – Simon Painter (NDC Oslo 2025)
• Common errors to avoid in ASP.NET Core dependency injection – David Grace
• 5 Open-Source Projects to Boost Your Productivity in Blazor – Héctor Pérez
• Understanding Parallel Programming in ASP.NET Core – Assis Zang
• Using Regular Expressions (Regex) in SQL Server 2025: A Complete Guide – Edward Pollack
• Azure Functions for the .NET Architect: Beyond Simple Triggers to Durable and Resilient Workflows – Sudhir mangla
• Is it AI, Or is it your Resume? – Sheila Romans
• Curing Your AI 10x Engineer Imposter Syndrome – Colton Voege
• .NET MAUI for Architects: Designing for True Cross-Platform UI and Logic – Sudhir mangla
• Is MVVM Dead? Why One Engineer Says ‘Yes’ and What He’s Using Instead – Uno Platform Team
• What Actually Happens When Programmers Use AI Is Hilarious, According to a New Study – Noor Al-Sibai
• How to build secure and scalable remote MCP servers – Den Delimarsky
• Deep C# – Bit Manipulation – Mike James
• Song recommendations with F# agents – Mark Seemann
• Building with a Product Mindset: How Great Software Goes Beyond Code – José Luis Manners

🔦 From our .NET Guide

Each month we feature tutorials or tips from our .NET Guide.

MAUI Development in .NET with Rider

A look at the basics of building .NET MAUI applications in Rider.

See more

Exception handling in .NET

Catch and manage exceptions in .NET Applications.

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☕ Coffee Break

Take a break to catch some fun social posts.

Corporate life… 😂

The dreaded squiggly underline in your IDE…

🗞️ JetBrains News

What’s going on at JetBrains? Check it out here:

Tune in for our Rider/R# release party on August 20th at 17:00 Central Europe Time.

📢 JetBrains .NET Days Online 2025 — Call for Speakers 📢

• JetBrains is a Platinum Sponsor of the Godot Foundation
• Upcoming Changes to JetBrains .NET Tools
• The ReSharper and .NET Tools 2025.2 Release Candidates Are Now Available

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