BNB Smart Chain activated the Pasteur hard fork on Tuesday, closing bridge verification gaps, tightening validator controls, and introducing a new block-building route that roughly doubled throughput in testing. The upgrade combines three proposals: BEP-682 prevents validators from being counted twice in cross-chain bridge approvals, BEP-695 removes authority from rotated validator keys and blocks restricted addresses from governance votes, and BEP-675 allows block builders to submit already-executed blocks so validators can sign first and verify afterward. In controlled tests on QANet, the new route increased transaction capacity from 1,237 to 2,324 per second while holding BSC's 450-millisecond block time constant, according to BNB Chain.

This matters because Pasteur removes three classes of security risk — duplicate bridge votes, lingering validator permissions, and restricted-address governance participation — without introducing a maintenance window or breaking compatibility. The throughput gain is material: average gas per block rose from 46.35 million to 84.15 million in testing, though BNB Chain cautioned the figures come from a synthetic workload, not mainnet traffic. Builders can choose either the new sign-then-verify route or the legacy execute-then-sign path, which preserves backwards compatibility while the network stress-tests the faster option under real load.

For traders, Pasteur is a credible infrastructure upgrade, but BNB sits at funding of +1.0bp/8h — 67% above the 30-day baseline — with Fear & Greed at 74, nearly double its 30-day average of 38. The upgrade itself carries no immediate fee burn, staking yield change, or token economics shift that would justify a fresh long. The throughput improvement is directionally bullish for the chain's competitive position, but the metric that matters is sustained on-chain activity, not synthetic test results.

Watch daily active addresses and daily transaction count on BSC over the next two weeks. If mainnet throughput approaches the 88% gain seen in testing and developer activity accelerates, BNB becomes a rotation candidate on any pullback. Until then, the risk-reward favours waiting for a better entry rather than chasing an already-elevated token into a known upgrade. The specific signal is whether BSC's average gas per block moves durably above 70 million under real traffic — that would confirm the new route is being adopted and blocks are filling closer to capacity.

Source: CoinTelegraph