The Co-Executive Director of the Ethereum Foundation (EF), Tomasz K. Stańczak, went to X today to reiterate the critical importance of the Fusaka upgrading of the Ethereum (ETH) network, which should focus on avoiding any delay for this key improvement.
Ethereum fusaka upgrade scheduled for the fourth quarter 2025
In an article on X published today, Stańczak has shared its point of view on the upgrade of Fusaka of the intelligent contract platform, emphasizing the need for Ethereum developers to prioritize this upgrade compared to the next Fork Hard Fork Glamsterdam, which should be launched in Q1 or Q2 of 2026.
Stańczak mentioned that it had advised projects coordinators to temporarily update discussions on the upgrade of Glamsterdam and to focus exclusively on the guarantee of the timely delivery of Fusaka. He said:
As I said on several occasions, there is no discussion on the roadmap and the vision of Ethereum if we cannot reach the levels of coordination which regularly reach objectives on time. I know that some extremely talented people are now working to solve the problems that have led the teams to suggest dates. I would love to see a large agreement that deadlines imported a lot. A lot.
For those who are not familiar, the Fusaka upgrade will introduce a range of technical improvements in Ethereum. He relies on the Pectra upgradewhich was put online in May 2025 and has made improvements to validators and the abstraction of accounts.
What does Fusaka upgrade offer?
Fusaka upgrade combines two major upgrades – Fulu (Consensus layer) and Osaka (execution layer). He will introduce 11 new Ethereum improvement proposals (EIPS), the peer data availability sampling (Peerdas) and the Verkle trees.
One of the main EIPs, EIP-7825, aims to improve the resilience of the Ethereum network to attacks by introducing a transaction gas limit ceiling of 16,777 216 units. This will help alleviate spam nodes and save targeted attacks.
Peerdas allows network participants to effectively check the availability of fragments data without downloading all of the data set, considerably improving scalability. This mechanism helps maintain the fragnated blockchain of the secure and decentralized network by preventing data from retaining attacks while reducing resource requests on individual nodes.
Meanwhile, verkle trees are an advanced type of cryptographic data structure that improves the effectiveness of storage and verification of large amounts of data compared to traditional Merkle trees. They will allow ETH nodes to prove and verify state data with much smaller evidence, reduce storage requirements and speed up synchronization times.
The continuous technological upgrades of Ethereum have fed A growing trend among companies to integrate ETH into their cash strategies. Recently, funding for negotiated stock markets (ETF) exceeds Those of Bitcoin products (BTC).

In addition, a recent Vaneck report suggested This ETH, rather than BTC, could become the favorite value store of the future. At the time of the press, ETH is negotiated at $ 3,956, up 3.4% in the last 24 hours.

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