Ethereum's Glamsterdam hard fork reached its final devnet stage Tuesday, locking in the EIP bundle that core developers expect to carry the network through public testnets and on to mainnet activation in the second half of 2026. The release is being framed as the largest protocol change since the Merge.
The upgrade ships ten Ethereum Improvement Proposals tracked under the Glamsterdam Meta EIP-7773, with two headliners doing the structural heavy lifting: EIP-7732, which enshrines Proposer-Builder Separation (ePBS) directly in the protocol, and EIP-7928, which introduces Block-Level Access (BALs) Lists so validators can process unrelated transactions in parallel.
The combination clears the path for a 200 million gas-limit floor, roughly tripling current L1 capacity from the 60 million range and unlocking what proponents say is up to 10,000 TPS-equivalent throughput under realistic workloads.
The devnet-0 spec published by the EF's pandaops team lists the included proposals. Beyond ePBS and BALs, the package contains EIP-7708 (ETH transfers and burns emit a log), EIP-7778 (block gas accounting without refunds), EIP-7843 (a SLOTNUM opcode), EIP-7954 (raising the maximum contract size from roughly 24 KiB to 32 KiB), EIP-7975 (eth/70 partial block receipt lists), EIP-8024 (backward-compatible SWAPN, DUPN and EXCHANGE opcodes), EIP-8037 (state-creation gas-cost increase), and EIP-8159 (eth/71 Block Access List Exchange).
