docs: Document npm_old_version and npm_new_version environment variables#9385
Merged
Merged
Conversation
npm sets two additional environment variables when running the `preversion`, `version`, `postversion` scripts, but these aren’t documented anywhere. Document the variables in the ‘Scripts’ docs. This feels like the right place for these docs as it’s where the other environment variables are listed.
2 tasks
owlstronaut
approved these changes
May 21, 2026
owlstronaut
changed the title
npm_old_version and npm_new_version environment variablesnpm_old_version and npm_new_version environment variables
Contributor
|
🎉 Backport to |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
npm sets two additional environment variables
npm_old_versionandnpm_new_versionwhen running thepreversion,version,postversionscripts, but these aren’t documented anywhere.Document the variables in the ‘Scripts’ docs, and cross-reference them from the documentation for the version command (and the libnpmversion readme).
I've tried to match the existing formatting conventions for each document. Please let me know if anything needs to change.