Go 1.26 is out, and the announcement says: "Over the next few weeks, follow-up blog posts will cover some of the topics in more detail. Check back later." So you can wait a few weeks OR you can read my interactive Go 1.26 tour right away: antonz.org/go-1-26

Some pretty awesome improvements in 1.26 for compiling/testing typescript-go. With a clean build/test cache, running the full test suite used to take 3m45s, but now takes just 2m10s.

“Go 1.26 is released” by Carlos Amedee, on behalf of the Go team — https://go.dev/blog/go1.26 #golang

🍵

$ jj describe -m "Hello, world!"

ICE out of my compiler

Interesting expansion of generics in #golang 👀

New blog post, with a perhaps mildly unpopular opinion: jayconrod.com/posts/133/in...

We are hiring! CPU security and stuff www.google.com/about/career...

My GopherCon talk was just posted!

PSA: go.sum is not a lockfile. You never need to look at go.sum. go.mod has everything you need.

Go 1.26 is coming soon, and the official release notes are pretty dry. So I prepared an interactive version with lots of examples. Read on and see! antonz.org/go-1-26

The folks behind GopherCon 2025 have kindly shared video recordings of our talks; here's mine on modernizer tools for Go. Special thanks to the amazing Stacy Potenza for turning my rapid limey nerd mumbling into comprehensible closed captions. www.youtube.com/watch?v=_VeP...

My colleague Sanjay Ghemawat & I have done a fair bit of performance tuning of various pieces of code. We wrote an internal Performance Hints document ~2 years ago as a way of identifying some general principles & we've recently published a version of it externally. Doc: abseil.io/fast/hints.h...

🎊 Go 1.26 Release Candidate 1 is released! 🏃‍♀️ Run it in dev! Run it in prod! File bugs! https://go.dev/issue/new 🗣 Announcement: https://groups.google.com/g/golang-announce/c/i0ei8EKtYjc/m/h0jl7InPCwAJ ⬇️ Download: https://go.dev/dl/#go1.26rc1 #golang

What's new in gopls 21: go.dev/gopls/releas... Please try it out: $ go install golang.org/x/tools/gopls@latest

Gist of Go: Concurrency is out! Learn Go concurrency from the ground up with 50 auto-tested exercises and tons of interactive examples. It's a full course + book in one. antonz.org/go-concurrency

"why i think #jj-vcs is worth your time" schpet.com/note/why-i-t...

The new chapter of my Go Concurrency book covers the scheduler and its implementation details. It's not meant to be a deep dive. But it's short, easy to understand, and will teach you more about goroutine scheduling than many other developers know. antonz.org/go-concurren...

I documented the steps and missteps I took with jj (jujutsu) getting a repo set up from scratch, initial commits made, and pushed to github. This is the intro workflow I needed, but couldn't find. www.visualmode.dev/from-zero-to...

Accepted! Go 1.26 will introduce per-state goroutine metrics: running, waiting, in syscalls, etc. Developers can use them to catch problems early without needing full traces. antonz.org/accepted/gor...

BREAKING: This is huge news, the EU's equivalent of the 🇺🇸Supreme Court's 2015 Obergefell v. Hodges ruling. 🇪🇺Court of Justice just ruled all 🇪🇺countries must recognise same-sex marriages granted in other member states. This effectively legalises gay marriage across 🇪🇺

synctest — the package introduced in Go 1.25 to make concurrency testing easier — looks deceptively simple. But don't let its innocent appearance fool you. To really understand synctest, check out the new chapter of my interactive Go Concurrency book. antonz.org/go-concurren...

Small contribution just before the Go 1.26 freeze: go.dev/cl/610815 removes the hard-coded 100ms sleep from the CPU profiler for most platforms. This will make it more efficient and unblock deeper call stacks. As a bonus, uncovered and fixed an 8 year old bug in the profiler go.dev/cl/722940 :)

My talk from GopherCon 2025 about Green Tea is up on YouTube! www.youtube.com/watch?v=gPJk...

#GopherCon 2025 - the first videos are up! @michael.express gives a great overview of how the Go garbage-collector works, and the changes in the the new design. www.youtube.com/watch?v=gPJk...

“Go’s Sweet 16” by Austin Clements, for the Go team — https://go.dev/blog/16years #golang

"By doing things voters wanted, he set unrealistic expectations. Soon, voters will expect ALL politicians to represent their interests. Then where will we be?” www.mcsweeneys.net/articles/yea...

New blog post: I'm Independently Verifying Go's Reproducible Builds: www.agwa.name/blog/post/ve...

If you have an interest in understanding garbage collection better, or in how Go's new GC works under-the-hood, I highly recommend reading @michael.express's thorough guide through Go's current and Green Tea GC.

Extremely happy to see Source Spotter, a Go Checksum Database monitor and Go toolchain reproducer by @agwa.name. These use the transparency logs we built into the Go supply chain to keep the Google-operated services honest.

Flame Graphs in Go https://lemire.me/blog/2025/10/26/flame-graphs-in-go/

I got frustrated with how GitHub Actions lets workflows with read-only permissions poison the cache of read/write workflows (!!??!?), so yesterday night I put together an Action that runs commands in a gVisor sandbox.

As professional maintainers we can invest in making our projects safer and more reliable. To that end, here's a draft of the Geomys Standard of Care. It covers general maintenance, stability & reliability, dependency management, account and CI security, vulnerability handling, licensing, and more.

Today's bug of the day has it all: ultimately caused by missing zero-initialization, bug in libc (-ish, arguably), copious use of setjmp/longjmp. I love C. github.com/ericphanson/...

To implement robust mitigations across Geomys, I did a survey of open source project compromises in 2024/2025. Three root causes dominate: phishing, control handoff, and unsafe GitHub Actions triggers. All three can be systematically avoided. words.filippo.io/compromise-s...

🥳 Go 1.25.2 and 1.24.8 are released! 📢 Announcement: https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI/m/qZN5nc-mBgAJ 📦 Download: https://go.dev/dl/#go1.25.2 #golang

jj v0.34 is out, including Gerrit upload support! github.com/jj-vcs/jj/re...

We are thrilled to announce that our NEW Large Language Model will be released on 11.18.25.

Fun little Go compiler CL merged today: go.dev/cl/706655 Uninlined generic functions have a "dict" arg, since Go generics are neither erased nor monomorphized, but instead instantiated for each "GC shape" (e.g. T=*int and T=*float64 get the same code, but T=int32 and T=int64 do not).

#jj-vcs part 1: what is it andre.arko.net/2025/09/28/j...

Go's execution tracer is a woefully underutilized tool. It contains tons of information about what is happening at any given moment that you won't get with a profile. In addition to showing flight recording capabilities, this post provides a nice example of how to use tracing to diagnose a problem.

Spotlight on @prattmic.com from the @golang.org team and his talk on on Faster Go Maps With Swiss Tables. youtu.be/aqtIM5AK9t4?... #gopherconEU #golang

Video is up now - my take on how map is implemented in Go, and what changed from Go 1.23 to 1.24 and 1.25. youtu.be/M05t7Q6LbFs

I did a talk at the UK GopherCon last month about what my team does, and I only let my laptop fall asleep twice! www.youtube.com/watch?v=oLtq...

There is no thriving #Haskell community without its members of the LGBT community, and on that there cannot be any compromise.

😮 Support for `jj gerrit upload` has been merged, I can’t wait to try it out tomorrow! Thanks matts1 and thoughtpolice for working on this!! github.com/jj-vcs/jj/pu...

Hi folks, it’s survey time! We’d love to learn more about how you use Go and what could be improved. Share your feedback via our annual developer survey at google.qualtrics.com/jfe/form/SV_.... It should take 10 - 20 minutes to complete, and will be open through September 30. Thank you! #golang

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