<ul data-eligibleForWebStory="true">Ethereum's progress at Berlinterop included fusaka-devnet-1, berlinterop-devnet-2, and Gas Limit tests for scalability and efficiency upgrades.The week identified critical changes for discussion before implementation in the main network, aiming to move to Sepolia without devnet-3.Developers participated in stress-testing challenges to reach a consensus on immediate throughput levels and future optimizations.L2 and ZK teams focused on increasing L2 usability, EVM changes awareness, and architectural expertise for scaling proposals.ZK sessions focused on guest programs, ISA standardization, and launching a zk-verified stateless client by year-end.Slot restructuring discussions highlighted benefits like fresher market data and smaller block sizes.Progress was made on history expiry specifications, with plans to drop pre-merge history on the mainnet.Efforts to harden the consensus layer encompassed 26 areas, including enabling checkpoint sync and optimizing client resource usage.Continuous discussions on these improvements are ongoing in Ethereum R&D Discord server.The Ethereum Foundation's roadmap for improvements appears promising and coherent.Stay updated with the latest in crypto, blockchain, and DeFi developments.