Ethereum core developers have set a tentative schedule for the Fusaka hard fork, aiming for early December activation. Announced during an All Core Developers Consensus call, the upgrade is intended to enhance the blockchain's scalability. The mainnet activation is targeted for December 3, following tests on three public networks in October. The Fusaka upgrade will include phased increases in blob capacity through Blob Parameter Only forks, with plans to more than double the capacity in subsequent weeks.