TEST Tessitura's database server will be upgraded to a more current version and migrated to a more responsive environment. TEST Tessitura and all TEST Tessitura web services will be unavailable during the maintenance window. Please close all of your batches and the batches that you manage before the start of this maintenance window. Consortium Staff reserve the right to close any batches that are left open at the start of the maintenance window. Please make sure your organization is aware of this maintenance window.