npm's developer documentation, describes README and CHANGELOG as having variants, without describing what they may be.
README (and its variants)
CHANGELOG (and its variants)
Is there a standard set of variants? If so, where would those standards be published?
The variants are clarified in the documentation on package.json#files field.
Changelog can be named CHANGES
, CHANGELOG
or HISTORY
with any case and extension. README
file has the same naming flexibility.