BNB Chain to Launch Pasteur Hard Fork on August 25

Odaily News: BNB Smart Chain (BSC) has announced that the Pasteur hard fork will officially go live on the mainnet at 10:30 AM Beijing time on August 25 (02:30 UTC on August 25). Node operators are required to upgrade their clients to 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. Among them, BEP-682 will strengthen the BNB Chain cross-chain bridge verification mechanism, preventing permission bypass risks caused by duplicate signature counting by validators, thereby improving the security of cross-chain asset transfers. BEP-695 optimizes the validator key rotation mechanism, ensuring that old keys no longer retain management privileges after exit, while also fixing potential vulnerabilities related to slashing 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 BNB Chain's internal QANet test environment, this solution increased throughput from 1,237 TPS to 2,324 TPS. While maintaining the 450-millisecond block time and the 100 million Gas block limit unchanged, the average Gas usage per block rose from 46.35 million to 84.15 million.

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