Highlights from the All Core Developers Consensus (ACDC) Call #166

Ethereum's All Core Developers Consensus Call #166 focused on the Fusaka upgrade rollout, along with early work on Glamsterdam. Developers deliberately triggered about two days of non-finality on Fusaka Devnet-3, and the network was healed and has been finalizing smoothly since. The Holesky fork activated on October 1 with a temporary validator participation drop traced to missed client updates, and the Ethereum Foundation launched a $2 million audit contest ahead of mainnet. The earliest Fusaka mainnet deployment is expected in December 2025, provided testnet activations remain stable.