Ethereum launches Platåberget public testnet for Glamsterdam upgrade

The Ethereum Foundation has launched the Platåberget public testnet to allow developers to test the upcoming Glamsterdam upgrade. This upgrade introduces significant changes, including protocol-level proposer-builder separation, block-level access lists, and a gas repricing that raises the gas limit to approximately 200 million. The upgrade also increases maximum contract and initialization code sizes. Developers are urged to update tools such as wallets, indexers, and gas estimators that rely on hardcoded gas limits, as these will break following the upgrade. Platåberget is intended to run for several months to provide a stable environment for testing before the upgrade reaches long-term testnets like Sepolia and Hoodi.