According to Tim Beiko's summary, the 209th Ethereum Execution Core Developer Conference (ACDE) focused on the upcoming Pectra and Fusaka upgrades. The Pectra client side is expected to be released on April 21, adding EIP-7702 delegation status to JSON-RPC. Fusaka will explicitly include EIP-7823 (limiting MODEXP complexity), EIP-7825 (transaction gas cap) and EIP-7907 (contract code size measurement and limit increase); EIP-7762 and EIP-7918 will be adopted in the blob fee mechanism to balance resource utilization and market supply and demand.