Fusaka-ready client releases.
Linea activates its burn mechanism.
ZKsync proposes a ZK value accrual system.
Vitalik suggests 1-2 day withdrawal times.
Ethereum client teams Lighthouse, Geth, Teku, Erigon, and Lodestar have released Fusaka-ready versions of their clients. Fusaka is Ethereum’s next upgrade, scheduled to go live on mainnet on December 3, 2025, at 21:49:11 UTC. Node operators must update their client software ahead of the activation. Validators running MEV-Boost must also update to Fusaka-ready v1.10. Fusaka introduces 12 EIPs, delivering improvements in scaling, performance, and user experience. The headline feature, PeerDAS (EIP-7594), enables higher blob throughput, reducing L2 transaction costs. Blob Parameter Only forks will follow, designed to further expand blob capacity by gradually increasing per-block blob limits.
Linea activated its burn mechanism on mainnet, automatically burning 20% of net ETH gas fees from every transaction and using the remaining 80% to buy back and burn LINEA tokens. ETH remains the native gas token on the network. The surplus gas fees are collected by a dedicated fee contract, which executes both burns. Linea also retroactively burned all surplus fees accumulated since September 11, 2025, totaling about 18 ETH and 20 million LINEA burned to date. Linea is an EVM-equivalent ZK rollup developed by Consensys, designed to deepen alignment with Ethereum.
ZKsync published a proposal seeking to expand the role of its ZK token from governance to utility, including a new buyback and burn mechanism. The proposal aims to bring value accrual to the ZK token through two mechanisms: onchain interoperability fees, which collect fees from transfers between ZKsync chains and Prividiums, and offchain enterprise licensing, which brings revenue from banks and institutions licensing advanced ZK modules. Proceeds from the value accrual would flow into a governance-controlled system that buys back $ZK and allocates it toward staking rewards, ZK token burns, and treasury funding. The move aims to ensure that the ZKsync ecosystem benefits from the Elastic Network. The proposal is currently open for community feedback.
Vitalik Buterin published a forum post proposing to reduce the current 7-day withdrawal window for stage 1 optimistic rollups to 1-2 days. He explained that shortening the time window could reduce costs for liquidity providers by 3-7x. Vitalik noted that 1-2 days is sufficient to handle all issues except a 51% censorship attack, and proposed a “delay extension switch” to allow any security council member to extend the withdrawal window to 7 days or longer if needed. For stage 2 rollups, which aim for full Ethereum-level security, the 7-day window should remain
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