Go 1.26 includes a new implementation of go fix that can help you use more modern features of Go.

GoLang is an open-source programming language developed by Google, known for its simplicity, concurrency support, and performance. Developers can learn about GoLang's syntax, standard library, and concurrency primitives to build efficient and scalable software applications for various domains.

Go 1.26 introduces a completely rewritten `go fix` command that automatically modernizes Go codebases by identifying opportunities to use newer language features and library functions. The tool includes dozens of analyzers (like replacing `interface{}` with `any`, using `min`/`max` functions, and adopting `strings.Cut`) and can be run across entire projects with `go fix ./...`. Built on the Go analysis framework, it supports synergistic fixes where applying one modernization creates opportunities for others. The post also previews a self-service paradigm allowing developers to define custom modernizers for their own APIs through annotation-driven inlining and dynamically loaded analyzers.

Using go fix to modernize Go code

Example: a modernizer for Go 1.26’s new(expr) ¶

<p>nice to know about this improvement</p>
