API Reference > imodeljs-backend > iModels > IModelExporter > exportChanges exportChanges Method Export changes from the source iModel. exportChanges(requestContext: AuthorizedClientRequestContext, startChangesetId?: string): Promise<void> note To form a range of versions to export, set startChangesetId for the start (inclusive) of the desired range and open the source iModel as of the end (inclusive) of the desired range. Parameter Type Description requestContext AuthorizedClientRequestContext The request context startChangesetId string Include changes from this changeset up through and including the current changeset.If this parameter is not provided, then just the current changeset will be exported. Returns - Promise<void> Defined in core/backend/src/IModelExporter.ts Line 259 Last Updated: 29 November, 2022