Woofun AI reports that the Ethereum network is preparing for the Glamsterdam upgrade, a mainnet launch scheduled for the second half of 2026 that has already entered its final testing phase on the devnet as of the end of June. This initiative, widely characterized by the developer community as the largest-scale upgrade since The Merge, focuses exclusively on restructuring the Layer 1 block production pipeline and execution engine to resolve performance bottlenecks and mitigate centralization risks. Current testing within a multi-client devnet environment is rigorously validating core features including built-in ePBS, block-level access lists, and a comprehensive Gas repricing mechanism designed to control node costs.

The first major structural shift involves the integration of the Proposer-Builder Separation mechanism via EIP-7732, which embeds ePBS directly into the consensus protocol to eliminate reliance on third-party relays. By allowing Builders to become natively recognized participants, this change extends the transaction execution propagation and processing window from approximately 2 seconds to around 9 seconds. This temporal expansion is critical for reducing centralization risks, as it provides a significantly larger buffer for transaction inclusion without compromising the security of the consensus layer.

Structurally, the upgrade introduces Block-Level Access Lists (BALs) through EIP-7928, requiring addresses and Storage Slots accessed by transactions to be declared in the block header in advance. This declaration creates a "state access map" that enables nodes to process transaction verification and state root calculations in parallel without encountering conflicts. The resulting efficiency gains in client reading, execution, and synchronization provide the underlying support necessary to break through existing performance limits, ensuring that the network can handle increased throughput without degrading node performance.

A more critical variable is the implementation of Gas Repricing under EIP-8037, which restructures Gas rules to enable separate accounting for computation and state operations. Regular computation Gas is now distinct from state Gas, with operations incurring permanent storage costs, such as creating new accounts and deploying contracts, having their costs recalculated to reflect actual physical resource usage. This precise pricing model aims to control state growth while ensuring that different operations pay based on their true cost, a shift confirmed during collaborative tests in April 2026 where key developers set a technical goal of achieving a minimum credible capacity of 200 million Gas units post-upgrade.

Woofun AI data shows that while the 200 million Gas target represents a shift from "cautious, incremental scaling" to "preparing for significant scaling through underlying structural reforms," this capacity level will not be reached immediately upon mainnet activation. The transition signals a strategic pivot where the network prioritizes architectural readiness over immediate throughput maximization, ensuring that the infrastructure can sustain high loads before they materialize. This approach balances the need for scalability with the imperative of maintaining network stability during the transition period.

For end users, the economic implications are bifurcated: transaction fees for simple operations are expected to decrease and stabilize, accompanied by significantly improved accuracy in estimating wallet Gas usage. Conversely, state-intensive activities such as contract deployment and bulk account creation may face higher costs due to the new pricing structure for permanent storage. Layer 2 users stand to benefit from the extended processing window provided by ePBS, which supports larger mainnet blocks and frees up space for handling more Blob data, contributing to more stable L2 data costs in the long term.

Operational requirements also shift for specific market participants, as EIP-7708 mandates standard logging for non-zero ETH transfers and destruction operations to enable wallets and exchanges to more reliably track internal ETH flows. Node operators must upgrade to a client version supporting Glamsterdam before mainnet activation, whereas ordinary token holders do not need to migrate their ETH or exchange tokens. This distinction ensures that the upgrade burden falls on infrastructure providers rather than passive asset holders.

In the long run, Glamsterdam seeks to establish a new equilibrium between "high-performance scaling" and "absolute decentralization" by rewriting the block pipeline and implementing precise pricing mechanisms. By providing explicit transaction dependency information and restructuring the execution engine, the upgrade aims to preserve the decentralized nature of the network while enhancing its resilience against future demand surges. This marks a definitive move away from reactive patching toward proactive architectural evolution for the Ethereum ecosystem.