The Ethereum Foundation has opened Platåberget, an early public test network for the upcoming Glamsterdam upgrade, and warned that the changes will break tools that rely on hard-coded maximum gas limits. The release points to a broad redesign across both the consensus and execution layers, including in-protocol proposer-builder separation, mandatory block-level access lists, coordinated gas repricing, and higher limits for deployable contract and initcode sizes. According to the foundation, Platåberget is designed to stay online for several months, giving developers, validators, builders, staking operators, DVT teams, and infrastructure providers time to test before Glamsterdam reaches longer-lived testnets such as Sepolia and Hoodi. The Glamsterdam fork on Platåberget is scheduled for Aug. 20. The gas repricing work is flagged as especially disruptive because it affects wallets, indexers, and gas estimators across the network. The foundation said ordinary ETH transfers will no longer always fit a single 21,000 gas assumption, since transfers to non-existent accounts can now incur additional state gas costs at runtime. It urged developers to use the early window to identify system assumptions that fail under the new model before the upgrade moves closer to mainnet.

Ethereum core developer Terence said the Glamsterdam upgrade is now live on developer testnet devnet-7, marking fresh progress in the path toward public testnet deployment. The update includes changes on both the consensus and execution layers. On the consensus side, devnet-7 brings in EIP-7688, described as progressive containers, along with updated payload deadline settings and builder lifecycle parameters. On the execution side, the rollout covers EIP-2780, EIP-8037, EIP-7928, EIP-8038 and EIP-8282. Terence said EIP-8037 moves state-dependent charging from intrinsic Gas to runtime, while EIP-7928 and EIP-8038 address BAL and SSTORE access ordering. EIP-8282 covers finalization for builder deposit and exit contracts. The announcement points to another step forward for Glamsterdam testing.

Ethereum core developer Terence announced the launch of Glamsterdam devnet-6, marking significant progress in testnet advancement. The release centers on EIP-8282, which implements ePBS builder execution requests along with two new system contracts. On the execution layer, based on post-bal-devnet-7, new EIPs were added: 2780, 8038 (repricing), 7997, 8246, and 8070 (optional). Additionally, modifications were made to EIP-7954 (64 KiB), 8037 (source-based refunds), and 7928 (BAL×7702 prewarming status quo). This update is a crucial step toward the next Ethereum upgrade.

Ethereum’s Glamsterdam hard fork has entered its final development testnet stage, with ten EIPs locked in and the upgrade described as the largest protocol change since the Merge.