Design debate over replacing trusted relays with protocol-enforced builder payments in Glamsterdam. July 2025 developer essays disagree on urgency, scaling gains and complexity; they document a historical design debate, not a current dispute about the Sepolia security-review window.
In this July 2025 design opinion, Mark Mackey favors EIP-7732 as Glamsterdam’s headline change, citing its maturity, scaling capacity, separation of consensus and execution payloads, and trustless builder payments. This is his individual design argument, not a new October 2026 testnet statement.
The Ethereum Foundation sets out the Glamsterdam testnet schedule and the client preparations for Sepolia. The announcement describes proposer-builder separation, block access lists and gas-pricing changes; it does not establish a confirmed mainnet activation date.
In this July 2025 opinion, Dapplion questions the urgency of committing to ePBS in Glamsterdam and argues that scaling gains can be achieved without trustless builder payments. He also says he would support EIP-7732 if ePBS had to ship immediately. These are qualified design objections, not blanket opposition to Ethereum scaling.
