version property
Version is the store's own revision counter for that brand, starting at 1 for the seeded playbook and incrementing on every edit. Nothing is overwritten, so the highest number is the live one and every lower number is still readable. It is not the playbook's authored version string.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
int? version;