As always, when preparing for a product upgrade or install, along with the docops.ca.com product documentation, refer to the product release's README for any additional requirements.
CA IPC 15.1 README is RI88866.
CA IPC 15.0 README is RI64942.
CA Datacom/DB 15.1 README is RI86635.
CA Datacom/DB 15.0 README is RI67375.
For quick links to all of the CA Datacom family of products' READMEs, refer to the "Installation Information (README)" column in the "CA Datacom/CA Ideal/CA IPC Maintenance Grid for z/OS" at https://www.ca.com/us/services-support/ca-support/ca-support-online/product-content/status/detailed-service-pack-info/ca-datacom-ca-ideal-ca-ipc-maintenance-grid-for-zos.html