Solana’s faster finality is live. What changes for users?

Solana has been running Alpenglow on mainnet since October 21, replacing a voting system that could take several seconds to finalize a block with one designed to finish in a fraction of a second. The Solana Foundation records the switch in epoch 1064, after 446 of 654 validators certified a genesis block. Summary Alpenglow began finalizing mainnet blocks at slot 459,653,000 on October 21, after the network certified its handoff block. Solana describes 150 milliseconds as a finality target; an October 23 outside measurement put median observed finality at 404 milliseconds. The change removes validator vote transactions from blocks, so headline transaction counts can fall without fewer user payments. RPC providers and indexers must account for competing block candidates, while ordinary wallet signing and transaction fees remain the same. The Votor voting system is live, but Rotor, the planned block distribution replacement, has no activation date. A user sending SOL might see a payment appear almost at once and wonder what the upgrade improved. A wallet can show that a transaction was processed before the network has made it final. Alpenglow compresses the wait for the stronger assur...