BNB Chain activates Pasteur hard fork on mainnet to address bridge and validator security
BNB Chain activated the Pasteur hard fork on BSC mainnet on Aug. 25, with reporting describing the upgrade as targeting gaps in bridge and validator security and also including a fuller block-building route [1] [2].
Yellow reported that Pasteur went live on BNB Smart Chain at 02:30 UTC on Aug. 25, bundling three proposals under the BEP-673 package, including BEP-682 (duplicate validator entries in bridge checks) and BEP-695 (authority removed from rotated validator keys) [3].
Yellow also stated that internal testing increased throughput from 1,237 to 2,324 transactions per second while not slowing blocks, and that the testnet throughput rose by 88% [3].
TheCoinrise.com characterized the Pasteur mainnet activation as aiming to strengthen cross-chain bridge infrastructure security and noted that Cointelegraph and crypto.news reported the activation on the same day [4].
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- 1BNB Chain activates Pasteur hard fork on mainnetcrypto.news• Aug 25, 2026
- 2BNB Chain activates Pasteur hard fork to strengthen bridge securityCointelegraph• Aug 25, 2026
- 3Pasteur Fork Ships To BNB Chain With A 2,324 Transactions Per Second Test MarkYellow• Aug 25, 2026
- 4Bridge Security Gets a Boost as BNB Chain Rolls Out Pasteur Hard ForkTheCoinrise.com• Aug 25, 2026
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