Ethereum Test Network Raises Block Limit to Over 3x Its Current Capacity
Summary
Ethereum’s Sepolia testnet activated the Glamsterdam upgrade on October 6, raising its block gas limit to nearly 200 million, over three times Ethereum mainnet’s 60 million. Sample blocks used only 24%–43% of the new capacity. Larger blocks could accommodate more activity during demand spikes, but may be harder for validators to propagate. Planned upgrades, including block-level access lists and enshrined proposer-builder separation, aim to improve network capacity. No date was announced for testing on Hoodi or for a mainnet upgrade; mainnet’s limit remains 60 million.
