Updates can either be a hotfix, allowing players to keep playing, or more substantial in a way that requires downtime (we call these "Major"). The official website uses the terms "hotfix" and "update" respectively, but that second one isn't a good descriptor to differentiate updates.
Text Major Hotfix
{ "type": "PROPERTY_CONSTRAINT_SCHEMA", "constraints": { "type_constraint": "_txt", "allowed_values": [ "Major", "Hotfix" ] } }