What is the difference between velodrome v1 and V2?

Could you elaborate on the key differences between the velodrome v1 and its successor, V2? I'm particularly interested in understanding the technological advancements, if any, that have been made in V2. Are there any new features or functionalities that V2 offers that weren't available in v1? Additionally, has the user experience been improved in any significant way? And finally, is there any reason why users of v1 should consider upgrading to V2? I'm eager to gain a deeper understanding of the differences between these two versions.