Ethereum Schedules Glamsterdam Test for October 6

Ethereum has scheduled its Glamsterdam protocol upgrade to activate on the Sepolia testnet on October 6 at 13:53:36 UTC, the Ethereum Foundation said. The date applies only to Sepolia; activation dates for the Hoodi testnet and Ethereum mainnet have not been finalized. The Foundation said Sepolia node operators should update both their execution-layer and consensus-layer clients before the activation. The testnet upgrade is a step in evaluating Glamsterdam, but the scheduled date does not establish when or whether the changes will reach mainnet. The test’s results and any further rollout decisions remain unknown. Glamsterdam is planned to introduce several changes to Ethereum’s protocol. These include proposer-builder separation built directly into the protocol, block-level access lists that record accounts and storage locations used during a block, and revised gas pricing for creating and accessing data. The changes affect how blocks are assembled and how network activity is accounted for. The Foundation cautioned that applications relying on fixed gas stipends or hardcoded gas limits may need to be changed.