BNB Chain Activates Pasteur Hard Fork to Boost Security and Capacity
BNB Chain has successfully activated the Pasteur hard fork on its mainnet. The upgrade, which took place at 02:30 UTC on August 25, introduces three key changes focused on bridge security, validator authorization, and block capacity.
The first change, implemented through BEP-682, strengthens bridge verification by rejecting duplicate validators during cross-chain light-block checks. This ensures that genuine supermajority approval requirements are met onchain.
The second change, via BEP-695, addresses validator key rotation, penalties, and governance. Validators can now replace their operator keys without losing management rights or escaping pending penalties.
The third change, implemented through BEP-675, introduces an optional route for builders to submit blocks they have already executed. This reduces repeated execution and increases block capacity by allowing validators to verify the proposed block against consensus rules before completing full execution verification.