Solana Prepares Major Consensus Upgrade with Alpenglow Protocol

TLDR: Alpenglow reduces Solana finality from 12.8 seconds to 100-150 milliseconds, a 100-fold improvement. Votor enables one or two-round block finalization through dual-path system with 60-80% stake thresholds. Rotor uses stake-weighted relay paths to achieve 18ms block propagation under typical network conditions. The upgrade replaces both Tower BFT and Proof of History with gradual rollout [...]

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