[FiddlyPack]

Semver _allows_ non-breaking changes on major release. It also supports tagging which could be a date tag.

The entire spec is like a 10 minute read. Anyone using semver should have at least read the semver spec. Anyway, the bullet on tagging:

“Build metadata MAY be denoted by appending a plus sign and a series of dot separated identifiers immediately following the patch or pre-release version. Identifiers MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-]. Identifiers MUST NOT be empty. Build metadata SHOULD be ignored when determining version precedence. Thus two versions that differ only in the build metadata, have the same precedence. Examples: 1.0.0-alpha+001, 1.0.0+20130313144700, 1.0.0-beta+exp.sha.5114f85.”