GoDaily

Prague Golang Meetup - Prague's Go user group. https://www.meetup.com/prague-golang-meetup/

golang.org/x/net v0.62.0 fixes two security bugs: quadratic HTML text-node coalescing and broken namespace traversal in raw-text rendering. https://groups.google.com/d/msgid/golang-nuts/f260da54.CAAACabVFtEAAAAAAAAAA-p9MGIAAYKKSQYAAAAAADE8OwBq4QFN%40mailjet.com #golang

Proposal: add crypto/cobblestone to the standard library, a new package for authenticated message encryption APIs. https://github.com/golang/go/issues/82535 #golang

Most-clicked Go stories last week: Go 1.27.3 ships https://go.dev/doc/devel/release#go1.27.3 Go vs Rust on AWS Lambda: a cost and performance benchmark with concrete numbers…

Proposal to add crypto/aead/... packages to stdlib, replacing the manual block cipher and nonce management required by cipher.AEAD today. https://github.com/golang/go/issues/82456 #golang

Worth bookmarking: the Go proposals tracker. Covers every active language proposal, what's under debate and what's close to landing. https://github.com/golang/go/issues?q=is:issue+label:Proposal #golang

Security fix for golang.org/x/net/html lands October 27. If you're using that package, plan your upgrade now. https://groups.google.com/d/msgid/golang-nuts/f0a677a4.CAAACZyfiZYAAAAAAAAAA-p9MGIAAYKKSQYAAAAAADE8OwBq2iI1%40mailjet.com #golang

A team consolidated 100+ Node.js services into under 30 Go services: 4x CPU reduction, 12x less memory, fewer than five engineers. https://zoopone.tech/from-100-node-js-services-to-fewer-than-30-in-go-b50892ce9c3d?source=rss------golang-5 #golang

Munich Gophers: Munich's Go programming language meetup. https://www.meetup.com/munich-gophers-go-user-group/

Go's crypto/x509 Verify will reject chains containing eight specific distrusted intermediate SPKIs. Concrete TLS hardening, not a policy change. https://github.com/golang/go/issues/82345 #golang

Project mapping Erlang fault-tolerance and actor-model concepts to Go: supervisors, process isolation, message passing. https://goer.p6m.onl #golang

Most-clicked Go stories last week: A critical look at the tradeoffs Go developers quietly accept https://fasterthanli.me/articles/lies-we-tell-ourselves-to-keep-using-golang Proposal: runtime/mainthread package to give Go programs control over the OS main thread…

Worth a follow if you care about Go language design: @fallthrough.fm runs discussions with the Go team that go deeper than the usual release notes coverage. https://fallthrough.fm/ #golang

Go's GC can burn 60% CPU in containers when it only sees host memory, not the cgroup limit. GOMEMLIMIT fixes the pacing. Zomato's numbers back it up. https://dev.to/buildopsy/when-go-gc-burns-60-cpu-the-container-memory-limit-problem-5g2d #golang

Go 1.27 changes HTTP client connection reuse for HTTP/1: sequential requests reuse connections more aggressively, cutting latency for high-volume request loops. https://go.dev/blog/http-connection-reuse #golang

Melbourne Go (Melbourne, Australia) - Melbourne's Go programming meetup. https://www.meetup.com/golang-mel/

Accepted: port RE2's DFA matcher into Go's regexp package (#11646). Could deliver meaningful regex performance gains for real workloads. https://github.com/golang/go/issues/11646 #golang

Proposal: add per-field limits to net/http and mime/multipart form parsing, closing a resource-management gap that's been a concern for a while. https://github.com/golang/go/issues/82173 #golang

Most-clicked Go stories last week: Go 1.27.2 ships as a patch release https://go.dev/doc/devel/release#go1.27.2 x/crypto/cryptotest lands as a new testing package for crypto primitives https://github.com/golang/go/issues/25309 How to hook into the Go toolchain, walked through in detail…

fasterthanli.me follows up 'Mr Golang's Wild Ride' with a direct critique of Go's persistent trade-offs: error handling, generics limitations, and the rationalisations that surround them. https://fasterthanli.me/articles/lies-we-tell-ourselves-to-keep-using-golang #golang

@thepracticaldev.bsky.social's Go tag is one of the friendlier places to read and write about Go publicly. Worth bookmarking if you want a low-noise feed of community posts. https://dev.to/t/go #golang

Go 1.27's simd package hits 10x speedup on float32 dot product on M4, no assembly required. https://importstatic.com/go/go-simd-package-dot-product #golang

connect-go v2 ships simplified generated APIs and an open transport layer. v1 remains fully supported. https://buf.build/blog/connect-go-v2 #golang

GoMAD - Madrid Go UG - Madrid's Go user group, talks in Spanish and English. https://www.meetup.com/go-mad/

VictoriaMetrics dissects a race detector false-positive in net/http request body handling, then finds the actual race hiding nearby. https://victoriametrics.com/blog/http-race-condition/ #golang

x/crypto/cryptotest lands as a dedicated package for testing crypto/cipher implementations: aliasing, length, and state requirements covered. https://github.com/golang/go/issues/25309 #golang

Most-clicked Go stories last week: Proposal to add a sizeof package with typed size constants for Int, Float64, Uintptr and friends https://github.com/golang/go/issues/29982 Go concurrency distilled: goroutines, channels, and patterns in one walkthrough…

After netip.Addr.To6() was rejected, the author hacked the Go compiler to make netip.AddrFrom16(ip.As16()) zero-cost. Walks through exactly what a compiler optimization takes. https://vincent.bernat.ch/en/blog/2026-go-netip-addrto6 #golang

Worth bookmarking: Go Conferences lists upcoming Go events worldwide, surfaced as they approach so you don't miss ticket windows. https://go.dev/wiki/Conferences #golang

Accepted: cgobindings GOEXPERIMENT will enable cgo without a C toolchain installed. Long-requested for cross-compilation workflows. https://github.com/golang/go/issues/81662 #golang

One month after Go 1.27 shipped method generics, adoption in libraries is near zero. Developers discussing whether the feature solves real problems or just fills a spec gap. https://www.reddit.com/r/golang/comments/1wu2x6h/do_you_use_method_generics_of_127_in_production/ #golang

Helsinki Gophers: Finland's Go meetup, friendly community, deep dives, pizza. https://www.meetup.com/Helsinki-Gophers/

Proposal: let the Go compiler auto-reorder struct fields for optimal memory alignment, replacing manual fieldalignment tool usage. https://github.com/golang/go/issues/81874 #golang

Accepted: a new sizeof package lands typed size constants for Go's numeric types (Int, Uint, Float64, etc.), removing the need for unsafe.Sizeof workarounds. https://github.com/golang/go/issues/29982 #golang

Most-clicked Go stories last week: A goroutine leak traced to code deleted two years ago, and how it was found https://medium.com/@kp9810113/the-goroutine-leak-was-in-a-function-we-deleted-two-years-ago-81be0d7182db?source=rss------golang-5 Proposal to remove the string(int) conversion from the…

Reduced a Go service's per-run cost from $0.50 to $0.04 by documenting the specific optimisations that got it there. https://dev.to/lovestaco/gfs-cost-more-than-50-cents-a-run-now-it-costs-4-cents-3lf8 #golang

Awesome Go is the closest thing the Go ecosystem has to a curated package index. If you haven't browsed it recently, worth a look. https://github.com/avelino/awesome-go #golang

Go 1.27 ships an experimental platform-agnostic SIMD API: vectorized code without architecture-specific intrinsics. https://go.dev/blog/simd-experiment #golang

json/v2 unmarshals missing/empty arrays as [] not nil, silently breaking nil-check logic in existing code. https://www.reddit.com/r/golang/comments/1wog3oy/jsonv2_slice_nil_checks_considered_harmful/ #golang

GoSG (Singapore) - Singapore's Go user group. https://www.meetup.com/golangsg/

go fix can rewrite calls inside dependencies when library authors add //go:fix inline, not just your own code. https://preslav.me/2026/09/19/go-fix-inline/ #golang

Go's major-version module rules silently reintroduced a deleted function's goroutine leak into production two years later. https://medium.com/@kp9810113/the-goroutine-leak-was-in-a-function-we-deleted-two-years-ago-81be0d7182db?source=rss------golang-5 #golang

Most-clicked Go stories last week: Rune, a Go-based build tool, goes open source https://rune.build/blog/rune-is-now-open-source pprof's confusing terminology, explained by someone who's used it for years https://swecyb.com/@anderseknert/117276501519467653 What belongs in a metric, a log, and a…

Proposal to deprecate debug/pe.ImportDirectory, broken and unusable for 15 years. https://github.com/golang/go/issues/81594 #golang

Worth following: @ardanlabs.com. Bill Kennedy's writing, courses, and podcast go deep on Go internals and engineering practice. If you want substance over surface-level tutorials, start here. https://www.ardanlabs.com/ #golang

TypeScript 7's Go port handles typed AST nodes without a monolithic struct, using discriminated unions and shared state across tree traversal. https://dev.to/puffball1567/inside-typescript-7s-go-port-designing-typed-ast-nodes-without-a-giant-struct-gep #golang

Go's swiss-table map uses 38MB per million entries, not the 16MB you'd calculate from raw key/value sizes. The post breaks down where the overhead actually comes from. https://dev.to/nazar-boyko/a-million-go-map-entries-take-38mb-not-16mb-2ij3 #golang

@golangkorea.bsky.social - South Korea's Go user group, organisers of GopherCon Korea. https://www.meetup.com/GDG-Golang-Korea/

Backend engineer documents a Java-to-Go API rewrite, naming specific areas where Go fell short of JVM maturity. https://medium.com/@backendbyeli/java-vs-go-in-2026-i-rewrote-our-api-in-go-and-regretted-half-of-it-927df462c0c6?source=rss------golang-5 #golang

Proposal: add ReadDir to os.Root, extending the sandboxed filesystem API from Go 1.24 with directory listing support. https://github.com/golang/go/issues/81526 #golang