BNB Chain will launch the Pasteur hard fork on August 25

BNB Smart Chain (BSC) announced that the Pasteur hard fork will officially launch on the mainnet at 10:30 AM Beijing time on August 25 (02:30 UTC on August 25). Node operators need to upgrade to client version v1.7.7 in advance. This upgrade includes three improvements: BEP-682, BEP-695, and BEP-675, focusing on enhancing cross-chain security, validator governance mechanisms, and network throughput capacity.

Among them, BEP-682 will strengthen the cross-chain bridge validation mechanism of the BNB Chain, preventing the risk of permission bypass caused by duplicate calculations of validator signatures, thus improving the security of cross-chain asset transfers. BEP-695 optimizes the validator key rotation mechanism, ensuring that old keys no longer retain management permissions after exiting, while also fixing potential vulnerabilities related to penalties and governance voting. In terms of performance, BEP-675 reduces the time consumption caused by validators repeatedly executing transactions by optimizing the block construction process.

In the internal QANet testing environment of the BNB Chain, this solution increased throughput from 1237 TPS to 2324 TPS, while maintaining a block time of 450 milliseconds and a block limit of 100 million Gas, with the average Gas usage per block rising from 46.35 million to 84.15 million.

BNB Chain stated that this upgrade is primarily aimed at validators and block builders, intending to provide greater capacity during network peak periods and to promote the throughput expansion goals outlined in the BNB Chain roadmap for the second half of 2026.