Christine Kim, Vice President of Research at Galaxy, summarized the 121st Ethereum Core Developer Consensus Call: developers discussed major changes to the Ethereum consensus layer (CL), including modifications to the Cancun/Deneb specifications to simplify Blob implementation, changes to upgrade specifications, reorganization of validators for later blocks, updates to the testnet schedule, and the creation of a JSON mapping for CL SSZ specifications.
Based on the meeting content, Devnet 11 has been launched and is running; the Goerli shadow fork began today to evaluate block and Blob delays; Devnet 12 may not start until early December. Kim believes that developers may begin upgrading the Goerli public Ethereum testnet after the first quarter of 2024.