Ethereum is set to activate Glamsterdam on Sepolia today with a 200M gas-limit test.
Glamsterdam introduces enshrined proposer-builder separation and block-level access lists to improve Ethereum’s block production and validation.
Ethereum is preparing to test a 200 million gas limit on the Sepolia testnet as the Glamsterdam upgrade moves to its next testing stage today. The latest change comes from Prysm v7.2.1, released by Offchain Labs on October 5, which adds the Sepolia gas-limit schedule and makes 200 million the default gas limit for validators after the Gloas fork.
The new Prysm release also changes how data columns are handled, enabling partial data columns by default. Under the change, nodes can gossip individual cells instead of entire data columns. Prysm also added configuration options for Gloas builders, including builder URLs, minimum bids and builder bid timeouts.
The 200 million gas setting is more than three times Sepolia’s previous 60 million gas configuration. Prysm’s latest release says the new schedule takes effect at epoch 353,024, matching the Sepolia configuration published for the Gloas fork. Validators using Prysm v7.2.1 do not need to manually set the 200 million limit, although operators can choose another limit through proposer settings or the keymanager API.
Glamsterdam Reaches Sepolia Today
Ethereum’s Glamsterdam upgrade is scheduled to activate on Sepolia at 13:53:36 UTC on October 6, corresponding to epoch 353,024 and slot 11,296,768. The upgrade combines the Amsterdam execution-layer changes with the Gloas consensus-layer changes.
Among its main changes are enshrined proposer-builder separation (ePBS) and Block-Level Access Lists (BALs). BALs are designed to record the accounts and storage locations accessed during a block, allowing clients to perform more state reads and transaction validation work in parallel. Glamsterdam also changes gas accounting for state creation, state access, calldata and access lists.
The 200 million gas test is limited to Sepolia and does not set a new gas limit for Ethereum mainnet. The Ethereum Foundation has not yet announced activation dates for Hoodi or mainnet.
Meanwhile, ETH is trading around $2,714, according to CoinMarketCap, with a market cap of about $331 billion and 24-hour trading volume above $10.2 billion. ETH is down about 0.8% over the past 24 hours.
ETH closed at $2,710.42 on October 5, after reaching a recent September high of $2,785 on September 23, according to historical data.
From a short-term price perspective, $2,700 is the immediate level to watch, while recent market analysis places resistance around $2,780-2,800. A move above $2,800 would clear the recent resistance area, while a drop below $2,650 could bring the $2,570-$2,470 zone into focus.