The All Core Devs Execution (ACDE) call also scheduled Glamsterdam's Hoodi testnet fork, set a gas limit change to activate at that epoch, and advanced several Hegotá EIPs, including a paired post-quantum account migration path, to Considered for Inclusion status.
The opcode changes from deleting code and storage to recovering all funds to the caller, simplifying the EVM while maintaining security and compatibility.
A new PAY opcode sends ether to an address without invoking its contract functions, streamlining transfers and reducing call overhead.
The BLOCKHASH opcode will read from the EIP-2935 system contract storage instead of a native operation, with gas cost adjusted for storage access patterns.
The ecRecover precompile result will be restricted to accounts with empty code or a delegation indicator, tightening signature verification rules.
A new SETCODEFROM instruction lets one account adopt an existing contract's code by hash, enabling efficient bytecode reuse without redeployment.
A new TCREATE opcode creates contracts that exist only within a single transaction, enabling temporary on-chain logic without persistent storage.
Removing the identity precompile in favor of equivalent EVM code was rejected, keeping the precompile as a permanent core feature.
Transaction announcements will include source and nonce metadata, improving mempool coordination and duplicate detection across nodes.
On-chain receipts will drop cumulativeGasUsed in favor of the transaction's own gasUsed, simplifying receipt structure and storage.
Three precompiles for ML-DSA signature verification were rejected, keeping post-quantum signature support narrower than proposed.
Keeping accessed addresses and storage keys warm after a revert was rejected, as the performance gain did not justify added complexity.
EIP-7907 proposes charging extra gas for loading contract code larger than 24 kilobytes, a change now proposed for Hegotá, the fork after Glamsterdam, to better price resource-heavy contracts.
Core developers will meet to coordinate on Glamsterdam mainnet timing and Hegotá fork scope as both upgrades advance through their phases.
The Frame Transaction Breakout, a protocol working group coordinating frame-based transaction formats, call set Hegotá's first devnet for October 28 and scoped frames-devnet-1 for October 15 to test keyed nonces (EIP-8250) and recent roots (EIP-8272).