API Reference > imodeljs-common > iModels > DomainOptions DomainOptions Enumeration Beta Option to control the validation and upgrade of domain schemas in the Db Members Name Value Description CheckRequiredUpgrades 0 Domain schemas will be validated for any required upgrades. Any errors will be reported back, and cause the application to fail opening the Db CheckRecommendedUpgrades 1 Domain schemas will be validated for any required or optional upgrades. Any errors will be reported back, and cause the application to fail opening the Db Upgrade 2 Domain schemas will be upgraded if necessary. However, only compatible schema upgrades will be allowed - these are typically additions of classes, properties, and changes to custom attributes SkipCheck 3 Domain schemas will neither be validated nor be upgraded. Used only internally Defined in core/common/src/BriefcaseTypes.ts Line 178 Last Updated: 29 November, 2022