Security Fix Ahead! Upgrade or Wait? Hi , AI can be a effing nightmare ... sometimes. It turns criminals into criminals on steroids. Defense and prevention...

The joy of hand-knitting Go code Hi , Back from the summer break (or winter break, if you live in the southern hemisphere)! The most important thing that...

Error handling is one of the biggest stumbling blocks for new Go developers – this article teaches you how to do it correctly and what mistakes to avoid.

The latest Go release, version 1.27, arrives in August 2026, six months after Go 1.26. Most of its changes are in the implementation of the toolchain, runtime, and libraries. As always, the release maintains the Go 1 promise of compatibility. We expect almost all Go programs to continue to compile and run as before.

The Smart Gopher Gets The Cheese Hi , You may know the saying: "The second mouse gets the cheese." Sure, it does—after the first mouse got killed by the...

The Unexamined Code Hi , Would you attempt to repair a bicycle without having an idea how the parts work, how to take them apart and put them together again?...

Bulletproof Hi , Make it work, make it robust, make it fast: The first is easy, the third is optional. Number two is underestimated until prod is down....

It Works. (But Why?) Hi , In this week's featured articles, you can inspect the Go compiler, examine error handling gone wrong, and dissect a simple archive...

No More Excuses Hi , All my true readers can skip the first featured article. You don't have to be convinced anymore! For everyone else, if you're still not...

Not Magic Hi , I bet you've had this situation more than once: Something feels like magic, until you start looking closer, peeking under the hood, and...

Turning Insights into Pages Hi , Maybe you have noticed that my courses Master Go and Concurrency Deep Dive can't be purchased anymore. This wasn't a...

A new attack targets LLMs that can access your data and the internet. The remedy: just don't let them. It's easier than you might think.

Perfect. Hi , This issue is about perfect things: The perfect tool to fix old code. Ten mantras for writing perfect code. And a perfect case for dumbing down...

If It Ain't Broken, Go Fix It! Hi , The new go fix command of Go 1.26 should have really been named go polish or go beef-it-up. What go fix, you ask? Well,...

What Came First: The Token or The Egg? Hi , Imagine you write a specification, you pass it as input to a MACHINE, and the MACHINE spits out working code! I'm...

Test Your Contracts Hi , I have a new Spotlight for you! For newer readers, I write occasional mini-articles for this newsletter. Today's spotlight discusses...

The Shift That Didn't Come (Yet) Hi , The Go developer survey 2025 results are out, and one thing that caught my attention is how the Go community (or...

Hidden Gems Hi , How many times have you invoked go run, go build, go test and other Go tools? Every time, you can trust the toolchain to do its job....

AI for Go development, in Go apps, and written in Go. A list.

2026 and Go 1.26 Hi , Welcome to 2026, and welcome back to The Applied Go Weekly Newsletter! Back from the winter break, let's look forward to Go 1.26 and...

Spilling The Gin Hi , Once upon a time, when HTTP routing packages were still rare, there was a new project named Martini. Quickly, it grew popular but also...

From Slow To Go Hi , What's your most-loved feature of Go? I have quite a few, but there is one that has repeatedly made a difference after switching to Go:...

Mechanical Sympathy Hi , There are two things in Go that probably don't grab a newcomer's immediate attention: The mechanics of heap allocation and data...

Map it, Reduce it, Buffer it, Profile it Hi , Processing large amounts of data within a short amount of time? This just cries for concurrency, or, more...

2^4 Hi , Some weeks spill over with new blog posts, some not so much. I should be used to it from years of running this newsletter week by week. But this...

Buil[d|t] To Learn Hi , Sometimes, building a project is the best way to learn a particular topic. As a close second, inspect projects built by others to...

Go Faster With Green Tea Hi , Go's garbage collector has gone through a remarkable journey. In Go 1.5, the Go team implemented a tri-color concurrent...

Practice Best Practices Hi , Hey, psst! Wanna have some tips for writing better Go? Here you are: Two articles about enhancing your coding, one about making...

Literate Scripting Hi , A compiled language usually isn't designed to be a good scripting language. Go isn't either, but projects like Mage, Yaegi, or...

The Cost Of (Avoiding) Dependencies Hi , From custom SQL backends to time as a performance bottleneck: Another week of Go (and not-so-Go-ish) news. Enjoy!...

Enjoy The Flight! Hi , Q4 has begun, and the Applied Go Weekly Newsletter isn't quite dead yet. Au contraire, mon ami, I am busy optimizing my workflow to...

Never Get Bored With The Basics Hi , Are you ready for a journey? I am planning to do a Spotlight series about building a basic SaaS platform for...

So You Don't Like Go? Hi , Awww, the 2nd issue after the summer break! I wanted to use the break for streamlining and automating my newsletter editing...

Commit Messages That Write Themselves Hi , The final 🌴 Summer Break 🌴 issue is in your inbox! With this issue, I'm concluding the AI series and looking...

Rodents of Unusual Size? I don't believe they exist. There’s endless discourse around tech debt. Kellan has some really good categorizations of different types, Will Larson has a great explainer of organization debt in his book, and I also like the idea of product debt. Throughout my career, I’ve been an engineer complaining about tech debt, a manager prioritizing (and deprioritizing) addressing tech debt, and a product manager, where I assume I primarily inspire the creation of new tech debt.

Blue Gopher Meets Stochastic Parrot Hi , Geez, the previous Spotlight was a bit long and code-heavy (for a Spotlight), wasn't it? Even though this newsletter...

You're Lucky: Full Moon Tonight! Hi , This is the second of four 🌴 "Summer Break" 🌴 issues with reduced content. As you may have guessed when you read the...

Let's ask an LLM Hi , This newsletter is in 🌴 Summer Break Mode 🌴 until August 24th, which means reduced content, and I decided to take the opportunity to...

An easy-to-use workflow automation library for Go. Supports conditional branching, parallel execution, embedded scripting, and execution checkpointing. Think of it like a lightweight hybrid of Temp...

New And Improved Formula! Hi , In this corner: JSON, the champion of sloppy data constructs. In the opposite corner: Go, the guardian of rigid data...

Fighting cross-site request forgery (CSRF) becomes easier in Go 1.25, thanks to the new cross origin protection feature.

Short tips, essays, and news about working with Go and software development. Most spotlights originate from my [Go newsletter](https://newsletter.appliedgo.net/archive).

Don’t Mess With My Site! Hi , There are myriad ways of attacking a web app, and cross-site request forgery is a particularly perfidious way of hijacking an...