币界网报道：Ethereum's Dencun upgrade has successfully reduced Layer 2 transaction fees by 60-90% across major networks, with Starknet experiencing the most dramatic drop from $6 to $0.04 per transfer. Arbitrum fees fell from $2.02 to $0.40, Optimism from $1.42 to $0.23, and Base from $0.31 to $0.05. The upgrade introduced "blob transactions" through EIP-4844, which significantly cuts data storage costs by making transaction data temporarily available rather than permanently stored on-chain. This marks Ethereum's most substantial fee reduction since the London hard fork's EIP-1559 in 2021. While the fee cuts are currently most visible on L2s, the upgrade also paves the way for future scalability improvements across Ethereum's ecosystem. The successful implementation demonstrates Ethereum's continued progress in addressing its long-standing high fee challenges.