[Ethereum Glamsterdam Upgrade Activated on Sepolia Testnet, Gas Limit Increased to 200 Million] Odaily Planet Daily News: Ethereum's next phase upgrade, Glamsterdam, was successfully activated on the Sepolia testnet on October 6, with no critical issues encountered during the process. This upgrade includes 18 EIPs and aims to support a block gas limit of approximately 200 million, which is about 3.3 times the current mainnet limit of 60 million gas. Key improvements include the introduction of an in-protocol proposer-builder separation mechanism, support for client parallel validation, and an increase in the maximum size of smart contract code. Approximately 11 hours after the upgrade, the block gas limit on the Sepolia testnet reached 200 million. Ethereum Foundation researcher Toni Wahrstätter stated that client execution efficiency has improved post-upgrade, with Geth reducing the time to process a 40 million gas block from approximately 115 milliseconds to 30 milliseconds. Glamsterdam is expected to be deployed on the Hoodi testnet on October 27, with the mainnet upgrade targeted for Q4 2026.