Ethereum Schedules Glamsterdam Upgrade Test on Hoodi for October 26
Ethereum developers will activate the Glamsterdam upgrade on the Hoodi testnet on October 26 at 17:42:48 UTC, following its Sepolia deployment on October 6. The test will validate changes to block production, builder separation, and gas accounting before a mainnet date is announced.
Written by CoinArticle’s AI Newsroom · from 2 cited sources. How we work
Testnet Activation and Gas Limit Changes
Ethereum's Glamsterdam upgrade is scheduled to activate on Hoodi at epoch 132,352, slot 4,235,264 on October 26. The testnet's gas limit will rise to 200 million at the same time, according to the Ethereum Foundation. No mainnet activation date has been announced. The upgrade follows Glamsterdam's October 6 activation on Sepolia, giving client teams a second environment to validate software compatibility before the protocol team designates a production launch window.
Technical Changes at the Core
Glamsterdam introduces three primary modifications. Enshrined proposer-builder separation, or ePBS, moves the relationship between block proposers and builders into Ethereum's protocol layer instead of relying on external marketplace arrangements. Block-level access lists are designed to enable clients to process and validate parts of a block in parallel, improving validator efficiency. The upgrade also restructures gas accounting, including how Ethereum charges for state creation and access operations.
Testing Cadence and Next Steps
The Hoodi deployment serves as the final testnet checkpoint before mainnet consideration. Developers will monitor block production, state access patterns, and the combined effect of gas changes across the test network. Only after developers assess the Hoodi results will client teams propose and select a mainnet activation date. The Glamsterdam roadmap is part of Ethereum's longer-term work on scalability and validator economics.
Why It Matters
For Traders
Mainnet uncertainty means no immediate catalyst; watch for client team announcements after Hoodi testing concludes to assess timeline.
For Investors
ePBS and access lists represent incremental progress toward validator decentralization and execution efficiency, but mainnet timing remains unconfirmed.
For Builders
Block access lists change how light clients and validators validate state; builders should prepare to test parallel processing during the Hoodi window.
This article is for information only and is not financial advice. Read the full disclaimer.
