"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

Profile.

“A new experimental Go API for JSON” by Joe Tsai, Daniel Martí, Johan Brandhorst-Satzkorn, Roger Peppe, Chris Hines, and Damien Neil — https://go.dev/blog/jsonv2-exp #golang

Underappreciated part of JJ. It also means you reach competency faster, because you can fearlessly try new commands or new techniques without worrying about destroying work.

“jj undo can now undo multiple operations progressively by calling it repeatedly, whereas previously, running jj undo twice was previously a no-op (it only undid the last change).” 😮 It seems Christmas came early this year. github.com/jj-vcs/jj/re...

The GopherCon EU videos are online. I really enjoyed @misago.org’s about testing/synctest. But there were so many good talks, maybe watch them all? youtu.be/oIC3zhTAOsY #gopherconeu #golang

My GopherCon EU talk about Swiss Table maps is now available! youtu.be/aqtIM5AK9t4

Release Notes v2025.6 tldr: The videos are here! open.substack.com/pub/gopherco...

Heading home from #GopherCon 2025 in NYC. As usual, many people asked how to get one of the amazing Go gopher Hawaiian shirts by Renee French. I've posted the details at github.com/rsc/gophersh.... (I know one person who has made pajama pants with the pattern. Socks might be nice too.) Enjoy!

GopherCon 2025 is a wrap! Thank you very much to the organizers, staff, sponsors, the other speakers, and most importantly everyone who attended. See you next year! #gopherCon #golang

@zombiezen.com great lightning talk!

Ooh, the SIMD WIP stdlib API for #golang is ready for people to poke! From Cherry from a few minutes ago: > As of today, we've landed a preliminary version with a reasonable API coverage. You're welcome to check out the dev.simd branch and try it with your use cases. github.com/golang/go/is... 🚀

“Container-aware GOMAXPROCS” by Michael Pratt and Carlos Amedee — https://go.dev/blog/container-aware-gomaxprocs #golang

Here are the slides for my "What's coming to Go 1.25" talk at #GopherConUK! #golang

my favorite go 1.25 feature is whatever @thepudds.bsky.social lands

The Go 1.25 change I am most excited about is the new synctest package. How I think about it is as a way to deflake tests by simulating an infinitely fast processor (because time doesn’t move until all work is done), and then shorten them by compressing time (because time jumps once it moves).

Go 1.25 is the best release of Go yet!

I'm happy to share that my talk proposal was accepted for GopherCon in NYC! It's on the Go compiler & escape analysis. I hope to chat with you there. Yes, you! (And if we don't know each other yet, just introduce yourself, and then we can chat! 😅) #golang #gophercon

Why is your code allocating memory? How does the Go compiler see the world? Join Go contributor @thepudds.bsky.social for a deep dive into escape analysis—the part of the compiler that decides whether your data stays on the stack or takes the more expensive trip to the heap. 🎟️ www.gophercon.com

Liberals tripping over themselves in their rush to recycle the "let's leave it up to the states!" arguments about gay marriage from 20 years ago. Do these people never learn?

And don't miss the equally amazing part 2: www.datadoghq.com/blog/enginee...

Fantastic new blog post from my colleague Nayef. If you're into Go internals, check it out! www.datadoghq.com/blog/enginee...

We announced the new native Go FIPS 140-3 mode today! FIPS 140, like it or not, is often a requirement, and I was increasingly sad about large deployments replacing the Go crypto packages with non-memory safe cgo bindings. Go is now one of the easiest and most secure ways to build under FIPS 140.

Decided to take a look at jj-vcs which I've heard positive noises about, and in particular see how easy using "jj split" to break a commit in two is. Grabbed the latest binary release and proceeded to clone a local git repo... #jj-vcs #git

🎉 Go 1.25 Release Candidate 2 is released! 🏃‍♂️ Run it in dev! Run it in prod! File bugs! go.dev/issue/new 📡 Announcement: groups.google.com/g/golang-ann... ⬇️ Download: go.dev/dl/#go1.25rc2 #golang

Ever wondered if it’s possible to use DTrace on a Go program? Turns out it’s super easy, barely an inconvenience! gaultier.github.io/blog/an_opti... #golang #dtrace #optimization #debugging

Thanks @commaok.xyz for hosting @michael.express and I to talk about a fun bug in Go’s new Green Tea GC and the tools we used to investigate. sigpod.dev/6

A few ways to build Go programs with a modified compiler/runtime/standard library: nsrip.com/posts/patchr... Overlays in particular are pretty cool IMO