Ethereum operators can now use the public Platåberget network to rehearse Glamsterdam's coordinated execution- and consensus-client upgrade. Maintained by ethPandaOps, the network launched Aug. 13 and is expected to remain available until Glamsterdam reaches mainnet. Unlike Sepolia, which the official page directs application developers and smart-contract teams to use for EVM testing, Platåberget focuses on client software, staking configurations, validators, builders and supporting infrastructure. Operators can test client-pair upgrades, checkpoint syncing, deposits, builder onboarding, payload timing and fork-choice behavior. A key change is EIP-7732, or enshrined proposer-builder separation, which separates consensus-block validation from execution-payload validation and introduces staked builders and a Payload Timeliness Committee. The proposed timing model gives the next proposer six seconds to validate a payload and other validators nine seconds, extending the roughly two-second critical path. Other Glamsterdam work includes Review-stage EIP-7928 block-level access lists and scheduled proposals EIP-2780, EIP-8037 and EIP-8038, all still in Review. The proposals could alter gas estimation and state-related costs, so teams need to reassess hardcoded subcall limits, cached estimates, refund-dependent flows, mints, airdrops and factory contracts. Platåberget's page gives an 18,000-gas example for a plain ETH transfer, while the EIP-2780 reference case totals 21,000 execution gas for a transfer to an existing externally owned account, making broad claims of cheaper ordinary transfers premature.