Go 1.24 arrives

#​542 — February 12, 2025

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🏖️ We're taking next week off, so the next issue will be on Wednesday, February 26. Feel free to hit reply and send in any submissions!
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Peter Cooper, your editor.

Go Weekly

Go 1.24 Released — Finally, after many months of blog posts getting excited about Go 1.24’s new features, the real deal has arrived. It’s a reasonably big release too, including a lot of updates:

• The go tool mechanism for tracking tool dependencies.
• The use of Swiss Tables to speed up map operations.
• Experimental testing/synctest package for testing concurrent code.
• The go:wasmexport directive to export functions to a WASM host.
• Support for generic type aliases, as well as weak pointers.
• A new mechanism to achieve FIPS 140-3 compliance.

Junyang Shao and the Go Team

💡 Jamie Tanna is also pretty excited about the new omitzero field tag for JSON marshalling.

Reduce Your Apache Kafka Costs + Ops Burden With WarpStream — WarpStream reduces Kafka costs by 80+% by eliminating disks and interzone networking fees and features zero ops auto-scaling. It runs in your private cloud and data is stored in your object storage buckets, so raw data never leaves your environment.

WarpStream sponsor

Go Slice Gotchas — “Just like any other dynamically growable container structure, slices come with a few gotchas. I don’t always remember all the rules I need to be aware of, so this is an attempt to list some of the most common mistakes I’ve made at least once.”

Redowan Delowar

IN BRIEF:

• Joe Tsai kicks off a proposal for encoding/json/v2, a new standard API for encoding/json.

• 🔒 Microsoft maintains its own Go build to bring FIPS compliance to Go's crypto libraries. Vanilla Go has been trying to obtain a FIPS validation directly and v1.24 adds a mechanism for this. However, MS is sticking with its approach and here's an explanation of why, as well as a look at support for macOS.

• 📻 TinyGo's Ron Evans recently ▶️ gave a talk at FOSDEM's Go devroom demonstrating using Go with microcontrollers to communicate over 'a variety of frequencies of the electromagnetic spectrum.'

• Originally a set of shell scripts, the latest version of the asdf version manager sees a complete rewrite to Go – explained in full detail here.

We Replaced Our React Frontend with Go and WebAssembly — Even if you wouldn’t want to do this, it’s interesting to read about the experience of a team that has.

Alex Suraci (Dagger)

OpenTelemetry: A Guide to Observability with Go — A thorough introduction with plenty of code examples.

Luca Cavallin

Eliminating Shadow Access: The Hidden Dangers of SSH and API Keys — Static keys create hidden security risks. Learn how to replace them with dynamic, identity-based access. Register now!

Teleport sponsor

📄 Why Does io.Reader Have Such a Weird Signature? – And there’s actually a good answer. Redowan Delowar

🎧 Discussing Security, Devops and Testing in Go with Jakub Jarosz go podcast()

📄 How I Developed a Markdown Blog with Go and HTMX Fluxsec

🛠 Code & Tools

sturdyc: Caching Library with Advanced Concurrency Features — “A sturdy gopher shielding data sources from rapidly incoming requests.” Designed to avoid cache stampedes and overloading in high throughput systems by providing non-blocking reads and sharded writes for minimal lock contention.

Victor Conner

go-taskflow: A Taskflow-Like DAG Task Execution Framework — A general-purpose task-parallel framework for Go, suitable for complex dependency management in concurrent tasks.

NoneBack

EasyCache: A New, Simple In-Memory Caching Library
Hugo Carreira

go-nfs: An NFSv3 Server in Pure go — Still a work in progress.
Will Scott

• 🤖 Go OpenAI 1.37 – An OpenAI API wrapper library. Now with support for the new o3-mini model. There's also OpenAI's official Go library now.

• golangci-lint v1.64.2 – Fast linter runner, now supporting Go 1.24.

• GoReleaser 2.7 – Build/release binaries for multiple platforms.

• Slack API in Go 0.16 – Use the Slack chat system's API from Go, unsurprisingly.

• pgRoll 0.9 – Zero-downtime, reversible schema migrations for Postgres.

• 🕒 Quartz 0.14 – Zero-dependency job scheduling library.

• pgxmock 4.5 – Mock driver to test Postgres interactions.

• fq 0.14 – Like jq for binary formats.