go fix now ships ~dozen analyzers to replace outdated patterns (interface{} → any, old loops → range-over-int, explicit map iteration → maps.Keys) in a single pass across your codebase.
June 9, 2026
Summary
Eliminates manual refactoring across projects when upgrading Go versions; reduces code review friction by batching modernization fixes separately from business logic changes. Especially critical as LLM-generated code trains on outdated idioms.
Why it matters
Eliminates manual refactoring across projects when upgrading Go versions; reduces code review friction by batching modernization fixes separately from business logic changes. Especially critical as LLM-generated code trains on outdated idioms.
Implementation verdict
Replaces manual find-replace and IDE quick-fixes for language idiom updates. Requires clean git state before running (it modifies files in-place). Run now: `go fix ./...` to modernize immediately, or `go fix -diff ./...` to preview. Ready for production use—this is official toolchain functionality.
Sources
Dev Signal
Get briefs like this in your inbox — free, every weekday.
100+ sources compressed into one 4-minute read. Ranked, cited, implementation-ready.