Preparing for Upgrading Multi Server CRM

You require a 2025 R1 license key to upgrade to 2025 R1.
Your license key can be used on all servers in the cluster.
Before beginning an upgrade, ensure all servers (with the exception of the database server) are disconnected from the database.
You can point multiple Tomcat servers at one database if the database provides enough connections to serve the multiple connection pools. Each Tomcat server opens a connection pool of 10 connections by default.