PANews reported on September 12th, as summarized by Christine Kim, that Ethereum developers confirmed the latest optimistic timeline for the Fusaka upgrade at the ACDE #220 meeting. If testing goes smoothly, the mainnet is expected to launch as early as November. Currently, Fusaka Devnet-3 is still experiencing issues such as low participation, and the development team is working on refining the relevant APIs. Fusaka Devnet-5 has been launched and will be used for blob parameter analysis. Testnet upgrades are scheduled for Holesky on September 29th, Sepolia on October 13th, and Hoodi on October 27th. The mainnet upgrade date will be determined after the testnet progresses.