Woofun AI reports that Solana has officially opened validator registration for the Alpenglow network upgrade. This technical milestone aims to reduce block finality from approximately 12 seconds to 150 milliseconds, representing an 80x improvement. The phased mainnet rollout is scheduled to begin in August and conclude with full activation by October. Validators must register and update their software to support the new consensus mechanism and transaction scheduling architecture. This fundamental reworking of the protocol requires careful coordination to ensure network stability during the incremental testing process.