Last month I told you React learning was about to change forever — that I was building something in stealth that represents the first true evolution in how developers master React.

Things are moving fast.

Soon, I'll be selecting beta testers to experience Cosden Code before anyone else.

If you’d like a chance to be selected, make sure you join the waitlist below!

🧑‍🎓 Grow your technical skills with hands-on learning
Looking to stand out in a competitive job market? Codecademy can help you build in-demand technical skills and prepare for top industry certification tests from AWS, Microsoft, CompTIA, and more. [ad]

🤔 I tried React Compiler today, and guess what...
I spoke about this article at the beginning of my latest video, and think it’s well worth checking out. Nadia dives in headfirst to see if using memoization hooks like useMemo, useCallback, and React.memo is finally a thing of the past. She unpacks what the React Compiler is, how easy it is to set up, and whether it lives up to its promises in real-world scenarios. Spoiler: the results might surprise you, in good ways and not‑so‑good ways. If you want clarity on whether this experimental tool changes the React game, this deep‑dive is worth your time.

⚡ Boost Performance in React Query
Curious how to fine‑tune component re‑renders in React Query? This post walks you through the powerful select option, letting you subscribe to just the data your component cares about, not the entire query result. It’s a sleek approach for improving performance and controlling subscriptions precisely. If you want smarter, more efficient querying in your app, this is a must‑read.

🧑‍🏭 Unlocking Web Workers with React: A Step-by-Step Guide
Struggling with UI freezes when running heavy calculations in your React app? In “Unlocking Web Workers with React”, Rahul walks you through moving a CPU‑intensive task, like calculating Fibonacci numbers, off the main thread using Web Workers, so your UI stays smooth. He then builds on that foundation by covering task queuing and Shared Workers to enable ordered execution and cache sharing across tabs. Perfect if you want slick performance without sacrificing interactivity.

🗺 Building a Full-Stack App with React and Aspire: A Step-by-Step Guide
Want to build a full-stack React app in record time? This tutorial walks you through crafting a TODO app powered by .NET Aspire, complete with a React front end, an ASP .NET Core Web API, and SQLite for data storage. You'll learn how to scaffold, integrate, and orchestrate everything using the CLI and C# Dev Kit.

🤨 84% of developers use AI, yet most don’t trust it
AI tools are now ubiquitous in dev workflows, used or intended by 84% of developers, but trust in their output has sharply dropped, with 46% expressing low confidence. This blog uncovers the growing reliance on AI coupled with rising skepticism, all backed by insights from over 49,000 developers worldwide.

📉 Tech jobs were supposed to be the safe career route. What changed?
Tech jobs were once seen as the ultimate safe bet, but that narrative is shifting. Massive layoffs, AI-driven automation, and recruiting slowdowns are challenging the perceived security of tech careers. Today’s job market is more volatile, prompting professionals to rethink what “safe” means when it comes to long-term employment.

🧑‍💻 The State of Software Development in 2025
Over 49,000 software professionals weighed in on the tools, environments, and AI habits defining development today. In “The State of Software Development in 2025”, Gregor Ojstersek summarises these insights to paint a clear and nuanced picture of where our industry stands, and what may lie ahead. Whether you're curious about shifting trends or wondering how your own practices stack up, this data-rich overview is worth a read.

👐 Introducing OpenAIs first Open Source Model
OpenAI just released GPT‑OSS, launching two open‑weight reasoning models—gpt‑oss‑120b and gpt‑oss‑20b, under an Apache 2.0 license. The larger model rivals top-tier performance on benchmarks like math, coding, and health tasks, while the smaller one’s lean footprint lets you run it on a laptop with just 16 GB of memory.

Quick Links

In this video, we're going to investigate whether the React Compiler is something you can simply install and set up in your project, never having to worry about memoization again.

We'll see that the React Compiler can sometimes be misleading, telling you that something won't be re-rendered when it actually will. You need to be careful!