Ethereum developers have confirmed that the Fusaka upgrade is on track for a December 3 mainnet fork, following unanimous approval from all core development teams. The upgrade's timeline depends on the successful completion of the Hoodie testnet next week, which has so far reported no major issues. Release candidates for mainnet clients are anticipated by November 3. The Fusaka upgrade will introduce Blob Parameter Override (BPO) and Peer Data Availability Sampling (PeerDAS), aimed at reducing blob fees and enhancing data verification efficiency.