Ethereum Proposes Halving Block Time to 6 Seconds for Faster Transactions

Coin WorldTuesday, Jun 24, 2025 12:04 am ET
1min read

An Ethereum developer has proposed halving the network’s

time from 12 seconds to 6 seconds, aiming to enhance transaction confirmation times and overall user experience. Core developer Barnabé Monnot presented Ethereum Improvement Proposal 7782 on June 21, suggesting adjustments to the timing of various blockchain operations to achieve this reduction. The proposal, initially created in October 2024, is planned for inclusion in the Glamsterdam update, scheduled for late 2026. By then, the network is expected to have undergone significant scaling, with blocks reaching three times the current gas limit and eight times the blob supply.

The primary motivation behind EIP-7782 is to improve the network’s confirmation service, potentially increasing the economic value captured by the network as a settlement and confirmation layer. Shorter slot times would result in faster transaction inclusion, leading to a more responsive chain and smoother experiences across wallets, decentralized applications (DApps), and layer-2 networks. This would also make it more difficult for anyone to censor transactions due to the increased frequency of block production.

The benefits extend to decentralized finance (DeFi) and trading, with faster price updates on decentralized exchanges and reduced losses due to arbitrage. Trading fees are expected to decrease as markets become more efficient, and liquidity in automated market makers would increase. However, there are potential tradeoffs, such as impacts on slower or poorly connected validators, higher

demands, and the risk of network congestion during peak usage periods. Extensive testing would be required to avoid network instability and ensure that smart contracts remain functional.

EIP-7782 proposes adjustments to three key subslot timings: block proposal time would be reduced from four seconds to three, attestation time from four seconds to 1.5 seconds, and aggregation time from four seconds to 1.5 seconds. These changes would collectively shave six seconds off the overall slot time. Monnot emphasized that while these adjustments would reduce the time available for each duty, the benefits of a 2x reduction in slot time make it a compelling option for Ethereum, worthy of serious consideration for the Glamsterdam update.

The Glamsterdam update, currently in its early design stages, focuses on gas optimizations and protocol-level efficiency improvements. The goal is to make Ethereum faster and cheaper to use, aligning with the broader vision of enhancing the network’s performance and user experience. The proposal suggests that by late 2026, the network will have achieved significant scaling, with blocks reaching three times the current gas limit and eight times the blob supply. This scaling is expected to support the proposed changes and ensure a smoother transition to shorter slot times.

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