org.cispec.specversion
core key recommended: any CIorg.cispec.specversion records the version of this specification a
label set was authored and validated against.
Value format
A semantic version 2.0 string matching a published specification version.
org.cispec.specversion=1.0
Conformance
org.cispec.specversion is RECOMMENDED on every Change Item. It allows
a validator encountering an older label set to apply the correct
historical conformance rules rather than the current ones.