What were the notable Go updates?

go/types, types2: stash receivers on method selections, cmd/compile: fix misscompilation of Rsh with 32bits rhs on arm64, and cmd/compile: add the ability to eat InvertFlags to ADCQ and SBBQ.

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The Wire · Showcase

TYPES RECEIVER BUG FIXED, ARM64 COMPILER ISSUES PATCHED

By RepoJournal · Filed 06:01 UTC on June 11, 2026 · About Go

The Go compiler lands three critical fixes overnight while gopls gains generic interface support and VS Code extension v0.54.0 ships with interactive code actions.

The types2 package fixed a violation of its Instances invariant where selector expressions on methods were dropping receivers [1], breaking the foundational contract that instantiating Uses[id].Type() with Instances[id].TypeArgs produces an equivalent of Instances[id].Type. This stashes the receiver in a new field checked at recording time. Simultaneously, cmd/compile shipped fixes for a right-shift miscompilation on ARM64 caused by a copy-paste error using 64-bit comparison for 32-bit shift values [2], and extended ADCQ and SBBQ to handle InvertFlags operations [3]. On the tooling front, gopls now supports generic interfaces in its stub method generation, properly instantiating type parameters from the LHS instead of inserting free variables [4], while the tools repo completed an internal restructuring moving internal/tool into gopls/internal/tool [5]. The VS Code extension released v0.54.0 with interactive code actions that prompt users for input before executing sophisticated refactorings like struct field tag manipulation and interface implementation [7], with v0.55.0 following as a pre-release identical build [8]. Routine dependency updates landed across tools [6], benchmarks [9], and perf [10] repos.

Action items

→ Pull the types2 receiver fix to ensure Instances invariant compliance in your type checking code golang/go [immediate]
→ Test ARM64 builds with the right-shift and flag handling patches before next release golang/go [plan]
→ Update gopls and vscode-go to 0.54.0+ for generic interface and interactive refactoring support golang/vscode-go [monitor]

References

[1] go/types, types2: stash receivers on method selections golang/go
[2] cmd/compile: fix misscompilation of Rsh with 32bits rhs on arm64 golang/go
[3] cmd/compile: add the ability to eat InvertFlags to ADCQ and SBBQ golang/go
[4] gopls/internal/golang/stubmethods: support generic interfaces golang/tools
[5] gopls: move internal/tool into gopls/internal/tool golang/tools
[6] go.mod: update golang.org/x dependencies golang/tools
[7] Release v0.54.0 ↗ golang/vscode-go
[8] Release v0.55.0 ↗ golang/vscode-go
[9] go.mod: update golang.org/x dependencies golang/benchmarks
[10] go.mod: update golang.org/x dependencies golang/perf

Quick answers

What shipped in Go on June 11, 2026?: The Go compiler lands three critical fixes overnight while gopls gains generic interface support and VS Code extension v0.54.0 ships with interactive code actions. In total, 26 commits and 2 releases landed.
What were the notable Go updates?: go/types, types2: stash receivers on method selections, cmd/compile: fix misscompilation of Rsh with 32bits rhs on arm64, and cmd/compile: add the ability to eat InvertFlags to ADCQ and SBBQ.

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