Ethereum co-founder Vitalik Buterin has lauded the recent Atlas upgrade by ZKsync, highlighting its significant contributions to Ethereum's scalability. The upgrade introduces over 15,000 transactions per second (TPS), one-second finality, and near-zero fees to Ethereum's Layer-2 ecosystem. Additionally, it facilitates direct access to Ethereum's liquidity for Layer-2 chains, eliminating the necessity for separate liquidity pools. Buterin described the team's efforts as 'underrated and valuable,' underscoring the importance of these advancements in the broader Ethereum network.