Binance exchange logo displayed on a smartphone screen. Source: TechGaged / Shutterstock. BNB Chain just gave builders more room to work with, and the fix targets a very specific bottleneck.  With the Pasteur hard fork activated on August 25, 2026, BEP-675 gives block builders more usable time inside each 450-millisecond block, according to BNB Chain’s announcement on X.