Ethereum Executive Director Urges Developers: The Fusaka upgrade by the end of the year cannot be delayed, otherwise discussing the roadmap is meaningless.

Ethereum's high-level officials have issued a warning that if the Fusaka upgrade scheduled for the end of this year is delayed, it may affect the overall roadmap of Ethereum. (Background: Grayscale report: Institutional inflow, regulatory approval, multiple favourable information behind Ethereum's strong rise) (Additional background: Vitalik Buterin calls for Ethereum to abandon Optimistic 'ZK as the orthodox', is it foresight or a dictatorship that stifles ecology?) Tomasz K. Stańczak, Executive Director of the Ethereum Foundation, posted on social media, bluntly stating that if the Fusaka upgrade cannot be launched on the mainnet on schedule in early November 2025, discussing Ethereum's roadmap and vision would be 'meaningless'. He reminded the development community not to focus solely on Glamsterdam in 2026 but to prioritize ensuring that the current timeline is not missed. Glamsterdam may be getting some attention ( it is a fork for Q1/Q2 2026). In the meantime, we should be more concerned about any potential delays to Fusaka ( Q4 2025). As I have said many times, no amount of talking about Ethereum's roadmap and vision matters if we cannot achieve… — Tomasz K. Stańczak ( @tkstanczak ) August 8, 2025 Is the Fusaka schedule too tight? The goal of the Fusaka upgrade is to introduce PeerDAS and Verkle trees, increasing Layer 2 data capacity and reducing transaction fees. According to the official schedule, the mainnet upgrade is expected to launch between November 3 and 6, 2025. The Ethereum development team admits this is a 'radical but feasible' plan, but has encountered issues such as synchronization latency and node crashes during early testing. To reduce risks, EIP-7907 has been removed from the upgrade content to simplify Fusaka. If we cannot maintain a collaborative standard of meeting deadlines time and time again, then discussing Ethereum's roadmap and vision is pointless. Stańczak emphasized the connection between development timelines and market trust; delays not only represent functional lag but may also undermine the long-term commitment of investors and developers to the ecosystem. This is evident in Ethereum's goal of becoming a 'world bank ledger', showing that the foundation's leadership has become more assertive than before. With Glamsterdam on the horizon, developers face dual pressure. While Fusaka is still in the sprint, Glamsterdam is also scheduled for launch in the first half of 2026. The core team is discussing reducing block time to 6 seconds, increasing the gas limit, and introducing block-level access lists ( EIP-7928) and FOCIL. According to the deadline, all features must be finalized by August 21, 2025, and the dual timeline for the two upgrades puts more strain on Ethereum's famous 'careful development' habit. Timely delivery is crucial for the trust in the 'global computer'. Stańczak hopes Ethereum will achieve a mainchain throughput of 400 TPS within ten years, and advance to 10,000 TPS through 'Lean Ethereum' and zkEVM technology. To this end, his company Nethermind is investing in automated contract auditing to ensure execution safety and predictability. Fusaka and Glamsterdam are thus seen as important checkpoints to test the current 'Ethereum Foundation after shouting reform' development efficiency. Related reports: Vitalik Buterin calls for Ethereum to abandon Optimistic 'ZK as the orthodox', is it foresight or a dictatorship that stifles ecology? Are Ethereum whales afraid of missed gains? 'Holding 1 million ETH OG' sells off and buys back ETH after a year, currently holding 59,718 coins. <Ethereum Executive Director urges development: The end-of-year Fusaka upgrade cannot be delayed, otherwise discussing the roadmap is meaningless> This article was originally published in BlockTempo, 'The Most Influential Blockchain News Media'.