According to the source, an Ethereum upgrade dubbed Fusaka is claimed for December 3 to make layer-2 transactions cheaper, but this timing and upgrade name are not confirmed on the Ethereum Foundation blog or AllCoreDevs repositories; traders should treat it as unverified and wait for official client release notes, source: Ethereum Foundation; Ethereum AllCoreDevs GitHub. For context, prior L1 scaling work such as EIP-4844 in the Dencun upgrade reduced L2 data availability costs and lowered typical user fees across major rollups, which historically supported higher activity and throughput, source: Ethereum.org EIP-4844; L2Beat analytics. If official confirmation arrives, trading checklist: watch ETH funding and options implied volatility into and after the fork, track L2 fee prints and blob gas prices to gauge cost reduction magnitude, and map beta on OP, ARB, and MATIC versus fee changes using on-chain dashboards before taking positions, source: Deribit metrics; L2Beat fee tracker; Ethereum client release notes; ultrasound.money blob fee charts.