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wire 2026-06-11
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$ the-wire · showcase

TYPES RECEIVER BUG FIXED, ARM64 COMPILER ISSUES PATCHED

By RepoJournal · Filed · About Go · Composed from the cited sources · methodology

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

References

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

$ ls golang/reviews/ # the step-back reads

the week in review FIPS 140 crypto fixes land across SHA-3, TLS 1.2, HKDF the month in review Go toolchain patches three CVEs as gopls hits v0.24.0
Full archive → Weekly reviews →

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.
♥

$ log @golang --recent

RISC-V Zfa assembly support, and a faster archsimd unifier 9 shipped Plan 9 Mkdir race fixed, riscv64 gets clobberdead mode 7 shipped gopls closes a CVE on dash-prefixed module paths, and the exp collections get a Set 52 shipped Compiler stops lifting unsafe.Pointer arithmetic 35 shipped

$ log --all # elsewhere on the wire

Agent Security Quiet day in agent security as guard coverage reaches four clients Alignment & Post-training verl defaults Ascend RL mode, open-instruct unblocks SFT packing

$ ls showcases/

Safety Evals AI Red Teaming Agent Security Interpretability Alignment & Post-training

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