There was an issue a long time ago with a feature merged for leading-zeroes support, even though it's not technically semver to do so (Though I think it's good to support): #89

However, it does not work in all situations.

Version.coerce("1.2.3") -> works fine
Version.coerce("1.2.000") -> works fine, gets interpreted as 1.2.0
Version.coerce("1.2.3.000") -> works fine, gets interpreted as 1.2.3+000
Version.coerce("1.2.3-000") -> breaks

It's difficult to know if this could called a bug or a feature-request, as leading-zeros aren't semver compliant, but since the original request was a feature, and ostensibly extends support for leading-zeroes, I would probably call this a bug with that feature. I could be misinterpreting something, though. In any case, it would be appreciated if this could be further supported.