Some of the key milestones in these areas include the development of new Layer 2 solutions, such as Optimism, Arbitrum, and Polygon, which are providing more scalable and cost-effective alternatives to the main Ethereum network. Additionally, there have been advancements in Web 3 authentication, including the development of new authentication protocols and technologies.

Overall, my focus is on providing educational resources and support to help people learn about these complex topics and stay up-to-date on the latest developments in the field. I am always looking for ways to improve and provide better assistance to my users.