Who contributed to Go on August 18, 2026?

5 developers shipped this update, including Michael Matloob, Egon Elbre, Hongxiang Jiang, David Chase, and Damien Neil.

What were the notable Go updates?

cmd/compile/internal/ssarewrite: split rewrites into packages, cmd/compile/internal/ssa: canonicalize zero comparisons to equalities, and cmd/compile/internal/ssa: move the HTML writer to ssahtml.

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The Wire · Showcase

GO COMPILER REWRITES SPLIT FOR PARALLEL BUILDS

By RepoJournal · Filed 06:56 UTC on August 18, 2026 · About Go

5 people shipped this

Michael Matloob @matloob 3 cited

Egon Elbre @egonelbre 1 cited

Hongxiang Jiang @h9jiang 1 cited

David Chase @dr2chase 1 cited

Damien Neil @neild 1 cited

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

The Go compiler is getting a major internal refactor as Michael Matloob splits the SSA rewrites out of ssacompile into one package per .rules file, aiming to build them all in parallel [1]. The amd64 rules package still dominates, so the split isn't even, but it's a start. Alongside that, Egon Elbre canonicalizes zero comparisons to equalities, filling two missing table cells so bit-test recognizers see one canonical spelling [2]. Matloob also moved the HTML writer to its own package and shipped a new op package for the Op type, shedding more ssagen dependencies [3][4]. As he puts it, this "allows all the rules to be built in parallel" [1]. In the VS Code extension, Hongxiang Jiang deprecates the wmic process picker in favor of a Rust-backed dependency recommended by a VS Code maintainer [5]. Meanwhile, Damien Neil restored docs in golang/net warning that h2c's NewHandler reads entire requests into memory, a caution that was lost in a terse deprecation notice [6]. Finally, David Chase relaxed InfluxDB's allowed-character regexp to accommodate "excessively creative" benchmark names like `DijkstraAllPaths_AllBetween_1000×16|0.1(828)-96` [7].

Action items

→ Review the SSA rewrite split for any impact on your custom compiler patches golang/go [monitor]
→ Update VS Code Go to pick up the new process picker and test on Windows golang/vscode-go [plan]
→ Be aware of the NewHandler memory caveat when using h2c in production golang/net [monitor]

References

[1] cmd/compile/internal/ssarewrite: split rewrites into packages golang/go
[2] cmd/compile/internal/ssa: canonicalize zero comparisons to equalities golang/go
[3] cmd/compile/internal/ssa: move the HTML writer to ssahtml golang/go
[4] cmd/compile/internal/ssa: move Op to op package golang/go
[5] extension/src/utils: deprecate wmic windows process picker golang/vscode-go
[6] http2/h2c: restore documentation of NewHandler unsafety golang/net
[7] internal/perf: add "|" to InfluxDB allowed-in-string chars golang/build

Quick answers

What shipped in Go on August 18, 2026?: Michael Matloob's refactoring push splits Go's SSA rewrite rules into per-package files, unlocking parallel compilation for the compiler itself. In total, 30 commits landed.
Who contributed to Go on August 18, 2026?: 5 developers shipped this update, including Michael Matloob, Egon Elbre, Hongxiang Jiang, David Chase, and Damien Neil.
What were the notable Go updates?: cmd/compile/internal/ssarewrite: split rewrites into packages, cmd/compile/internal/ssa: canonicalize zero comparisons to equalities, and cmd/compile/internal/ssa: move the HTML writer to ssahtml.

GOPLS FIXES AST POSITION BUG THAT BREAKS EDITS

A gopls parser bug that could corrupt edits to large AST nodes is finally patched, and the vscode-go extension ships a pre-release with LSP 3.18 support.

go 27 shipped

@golang Aug 17

GOPLS FIXES WINDOWS CRLF OFFSET DRIFT, REVIEW REPO CATCHES UP ON FORMATTING

The Go tools team patched a subtle but pervasive bug where CRLF line endings in assembly files threw identifier offsets out of sync, breaking accurate source navigation on Windows.

go 4 shipped

@golang Aug 16

REFACTOR TOOL CRASH FIX SHIPS AS COMPILER INTERNALS SHUFFLE

The satisfy refactor tool stops crashing on type errors while the compiler team reorganizes global config across the SSA pipeline.

go 3 shipped

@golang Aug 15

GO STRIPS LEGACY CODE.GOOGLE.COM PATHS, HTTP/2 HOST HEADER FIX LANDS

The Go toolchain removed an unreachable staleness check dating to Google Code's 2016 shutdown, while the HTTP/2 implementation now correctly strips Host headers from request maps to match documented behavior.

go 23 shipped

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MAUI Overhauls NuGet Publishing as FSharp Preps for VS 18.11

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