Who contributed to Go on August 22, 2026?

8 developers shipped this update, including Austin Clements, Joel Sing, Joe Tsai, Damien Neil, Hongxiang Jiang, racequite, Gopher Robot, and Hajime Hoshi.

What were the notable Go updates?

simd/archsimd/_gen/wasmgen: drop splitPhase vestiges, simd/archsimd/_gen/simdgen: drop splitPhase vestiges, and simd/archsimd/_gen/tmplgen: drop splitPhase vestiges.

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The Wire · Showcase

GO CLEANUP: SPLITPHASE GONE, RISCV64 FASTER

By RepoJournal · Filed 06:56 UTC on August 22, 2026 · About Go

8 people shipped this

Austin Clements @aclements 3 cited

Hongxiang Jiang @h9jiang 2 cited

Joel Sing @4a6f656c 1 cited

Joe Tsai @dsnet 1 cited

Damien Neil @neild 1 cited

racequite @racequite 1 cited

Gopher Robot @gopherbot 1 cited

Hajime Hoshi @hajimehoshi

Austin Clements tore out the last splitPhase scaffolding in Go's SIMD generators, and Joel Sing shaved 300 instructions off riscv64 binaries, all in a morning's work.

The Go compiler toolchain is getting leaner. Austin Clements removed the splitPhase vestiges from three SIMD generators [1][2][3], a cleanup that marks the end of the incremental SSA package split and simplifies the code generation pipeline. Meanwhile, Joel Sing's riscv64 optimization [4] avoids zero extension after a sufficient logical right shift, removing around 300 instructions from the Go binary. Over in vulndb, GO-2026-5026 gained attribution [5] after Damien Neil acknowledged the initial fix was insufficient. The mobile team forced a go directive bump to at least 1.26.0 [6] since Go 1.25 is now unsupported, and gobind added an -overlay flag [7] to keep generated bindings consistent with overlaid source. Telemetry now tracks the 'implement at cursor' command [8], while vscode-go users will need to adjust to new LSP log handling [9] after the language client library update. The docs also dropped the 'anonymous' term for embedded fields in encoding/json [10], a long-overdue modernization.

Action items

→ Update go.mod to go 1.26.0 or later in any golang/mobile projects golang/mobile [immediate]
→ Review GO-2026-5026 attribution and verify your fix covers the full scope golang/vulndb [plan]
→ Rebuild riscv64 binaries to pick up the zero-extension optimization golang/go [monitor]

References

[1] simd/archsimd/_gen/wasmgen: drop splitPhase vestiges golang/go
[2] simd/archsimd/_gen/simdgen: drop splitPhase vestiges golang/go
[3] simd/archsimd/_gen/tmplgen: drop splitPhase vestiges golang/go
[4] cmd/compile: avoid zero extension when sufficiently shifted on riscv64 golang/go
[5] data/reports/GO-2026-5026: add additional attribution golang/vulndb
[6] all: upgrade go directive to at least 1.26.0 [generated] golang/mobile
[7] cmd/gobind: support source overlays golang/mobile
[8] internal/chartconfig: add telemetry for implement at cursor command golang/telemetry
[9] CHANGELOG.md: document the step to enable lsp logs from vscode golang/vscode-go
[10] encoding/json: use embedded terminology golang/go

Quick answers

What shipped in Go on August 22, 2026?: Austin Clements tore out the last splitPhase scaffolding in Go's SIMD generators, and Joel Sing shaved 300 instructions off riscv64 binaries, all in a morning's work. In total, 38 commits landed.
Who contributed to Go on August 22, 2026?: 8 developers shipped this update, including Austin Clements, Joel Sing, Joe Tsai, Damien Neil, Hongxiang Jiang, racequite, Gopher Robot, and Hajime Hoshi.
What were the notable Go updates?: simd/archsimd/_gen/wasmgen: drop splitPhase vestiges, simd/archsimd/_gen/simdgen: drop splitPhase vestiges, and simd/archsimd/_gen/tmplgen: drop splitPhase vestiges.

GO'S SYNC.ONCE PANIC TRAP

A panic in go/parser's ResolveFile can leave the compiler silently skipping type resolution, and Damien Neil is closing a request smuggling hole in net/http.

go 13 shipped

@golang Aug 20

Go 1.28 release notes go live as database/sql doubles down on speed

Go 1.28 is officially on the horizon, and database/sql just got a serious performance upgrade that will make every scanner faster.

go 43 shipped

@golang Aug 19

GOPLS FIXES AST POSITION BUG THAT BREAKS EDITS

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go 27 shipped

@golang Aug 18

GO COMPILER REWRITES SPLIT FOR PARALLEL BUILDS

Michael Matloob's refactoring push splits Go's SSA rewrite rules into per-package files, unlocking parallel compilation for the compiler itself.

go 30 shipped

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