https://build.pypa.io/en/stable/changelog.html still lists 1.4.0 as the last version, while https://github.com/pypa/build/releases already has 1.4.3
https://build.pypa.io/en/stable/changelog.html still lists 1.4.0 as the last version, while https://github.com/pypa/build/releases already has 1.4.3