Babel transformer: Use `envName` to hint default value of `dev`, don't mutate `process.env.BABEL_ENV`#55806

Open

robhogan wants to merge 2 commits intomainfrom

export-D94662935

Commits on Feb 27, 2026

Babel preset: don't override `dev` based on omission of obsolete `withDevTools`, infer from `env()` instead. (#55805)

robhogan
authored and
facebook-github-bot
committed
Babel transformer: Use `envName` to hint default value of `dev`, don't mutate `process.env.BABEL_ENV`

robhogan
authored and
facebook-github-bot
committed