What is the difference between Aurora v1 and v2?

Could you elaborate on the key differences between Aurora's version 1 and version 2? I'm particularly interested in understanding the technical advancements, if any, in v2 over v1. Does it offer improved scalability, transaction speeds, or security? Are there any new features or functionalities introduced in the latest iteration? Furthermore, how does the upgrade impact users, developers, and the overall Aurora ecosystem? A comparative analysis would be greatly appreciated.