The software version is inferred from the provided documentation link https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/Enterprise-Mobility-8-5-Design-Guide/Enterprise_Mobility_8-5_Deployment_Guide/ch5_QoS.html , which is related to Cisco Wireless Controller version 8-5.
The provided documentation doesn't directly list the software version, but based on the link provided, it seems to refer to a specific version of the Wireless Controller software.