Highlights from the All Core Developers Consensus (ACDC) Call #165

Developers on ACDC call #165 reported that Fusaka testing has entered a critical phase, with Devnet 3 stable and Devnet 5 raising new issues around blob counts, bandwidth, and client performance. Analysis found blob values of 15 and 21 feasible for BPO 1 and 2, while 32 blobs caused severe block propagation struggles unless relays or high-bandwidth nodes were used. A c-kzg-4844 flaw in version 2.1.2 was patched in v2.1.3, now the recommended version. The proposed schedule sets a code freeze on 22 September 2025, with testnet forks on Holesky, Sepolia, and Hoodi in October and mainnet no earlier than 30 days after the Hoodi fork.