Source: Schema.org v30.1 vocabulary. Official legislationDateVersion property definition.
What does legislationDateVersion mean?
The point-in-time at which the provided description of the legislation is valid (e.g.: when looking at the law on the 2016-04-07 (= dateVersion), I get the consolidation of 2015-04-12 of the "National Insurance Contributions Act 2015")
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status