The Sepolia test network implemented the Glamsterdam upgrade on October 6, increasing its block gas limit to nearly 200 million. This capacity is more than triple the 60 million limit currently maintained on the Ethereum mainnet.
The new limit was triggered at epoch 353,024, which began at 13:53:36 UTC. Data from Etherscan on October 8 indicates that blocks are currently utilizing between 24% and 43% of this expanded capacity.
Higher gas limits allow blocks to accommodate more transactions during periods of high demand, which helps prevent fee spikes. However, researchers have previously noted that limits exceeding 40 million may complicate block propagation across the network.
The network previously adjusted its limits in smaller increments, including a vote in February 2025 that raised the cap from 30 million to 32 million. The limit reached 60 million following the Fusaka upgrade on December 3, 2025.
Ethereum developers are exploring further scaling solutions, including block-level access lists and enshrined proposer-builder separation. Vitalik Buterin has outlined a multi-year plan to replace major protocol components.
