Added support for Explicit Messaging instructions (CEM, DEM, and EEM) for ControlNet, DeviceNet, and EtherNet. RPC Instruction: Introduced the Read Program Checksum (RPC) instruction. SLC 500 Enhancements: Added support for firmware revision for SLC 5/03, 5/04, and 5/05 controllers. Activation and "Master Disk Verified" Details The "Master Disk Verified" status refers to the legacy EVRSI (Master Disk) activation system. Dual Activation Support: