Following the recent Decun + Atlas upgrade, Ethereum's ecosystem has seen significant advancements, particularly in the realm of Layer 2 (L2) networks. Ethereum founder Vitalik Buterin, speaking at ETH Taipei, expressed his surprise at the increased usage of L2 solutions post-upgrade. The upgrade, which introduced Proto-Danksharding, has notably reduced transaction fees across various platforms. For instance, transaction fees on Arbitrum have dropped to just 1 cent, while Optimism has seen its average transaction cost plummet from $0.23 to less than a cent. This drastic reduction in fees is attributed to the Decun + Atlas upgrade's efficiency improvements. Additionally, the upgrade has led to a surge in daily transactions on Ethereum rollups, with some networks experiencing a doubling or tripling in activity. The impact of these developments is far-reaching, with Chainlink reporting a 99% reduction in gas costs for publishing oracle reports on L2 rollups. This period of innovation has also sparked a focus on L2 solutions in crypto funding, highlighting the sector's growing importance.