UIBScm. add-on RateGain two-way integration with Reservations Delivery (ARI+RD) was released in Beta edition. It is being tested on selected chain properties and is planned for availability to production in Q1 2022. The new product offers optimized security and efficiency across a wealth of PMS integrations for modern Reservations Delivery and will be integrated with UIBScrs. new common inventory feature to allow a single source of truth on property capacity for all connected channels.