Ethereum’s Sepolia Testnet Activates Glamsterdam With 200M Block Gas Limit

The gap between Sepolia's new ceiling and mainnet's current one is the real signal: Glamsterdam's viability is being stress-tested at roughly triple the load Ethereum actually carries today, which is where edge cases in execution and state growth would surface first. That matters most for client teams, staking operators and infrastructure providers whose tooling is calibrated to existing limits, not for end users yet. Whether the higher limit proves stable under testnet conditions — and how long it stays in testing before any mainnet discussion — is the open question.