This video walks you through the comparison between AOS 8 and AOS 10. It also explains the what Role Aruba Central plays into its management of different types of devices. It also touches on Gateways running AOS 10
I have around Aruba for a few years. This has been on of the most impact to my learning thus far. The breakdown of AP mode operation between AOS8 & AOS10 was very informative.