Cc9f267dcClaimSolana validators approved the SIMD-0326 proposal implementing Alpenglow in September 2025 with over 98% voting in favorAgreeDisagree
Cc9f267dcClaimSolana core engineering firm Anza developed the Alpenglow upgrade and took the protocol from a white paper to mainnet deployment in under 18 monthsAgreeDisagree
Cc9f267dcClaimAlpenglow is designed to continue operating with up to 20% of stake acting maliciously and another 20% offlineAgreeDisagree
Cc9f267dcClaimAlpenglow condenses Solana's previous two-step transaction confirmation process under TowerBFT into a single step for finalityAgreeDisagree
Cc9f267dcClaimMoving validator votes off-chain under Alpenglow is expected to reduce Solana's reported transaction counts and TPS because vote transactions are no longer included in blocksAgreeDisagree
Cc9f267dcClaimUnder Alpenglow's Votor mechanism on Solana, validators send BLS-signed vote messages directly off-chain rather than submitting votes as block transactionsAgreeDisagree
Cc9f267dcClaimSolana activated its Alpenglow consensus upgrade on mainnet-beta on October 21, 2026, replacing TowerBFT at slot 459,653,000AgreeDisagree
Cc9f267dcClaimThe Alpenglow upgrade reduces Solana's transaction finality from about 12.8 seconds to roughly 150 millisecondsAgreeDisagree
Cc9f267dcClaimDuring public testnet and devnet testing, Alpenglow achieved median finality times as low as 54 millisecondsAgreeDisagree
Cc9f267dcClaimUnder Solana's Alpenglow upgrade, validators pay a flat 0.8 SOL per epoch fee rather than paying per-vote transaction feesAgreeDisagree
Cc9f267dcClaimAn amendment to XRP Ledger rules, such as fixCleanup3_4_0, requires continuous approval from over 80% of the network's 35 default trusted validators—at least 29 votes—for two consecutive weeks before activatingAgreeDisagree
Cc9f267dcClaimThe XRP Ledger fixCleanup3_4_0 amendment reached 29 validator votes on October 9, 2026, and held 29 on October 19, 2026, tracking activation around 09:34 UTC on October 23, 2026, with a single validator withdrawal restarting its 14-day countdown.AgreeDisagree
Cc9f267dcClaimThe XRP Ledger evaluates amendment activation decisions at designated intervals called flag ledgers, occurring every 256 ledgers.AgreeDisagree
Cc9f267dcClaimUnder Solana's Alpenglow Votor system, Solana validators communicate directly off-chain to aggregate votes into cryptographic certificates rather than recording each vote as an onchain transactionAgreeDisagree
Cc9f267dcClaimTransitioning to Solana's Alpenglow Votor system requires validator operators representing at least 82% of total staked SOL to sign a genesis certificateAgreeDisagree
Cc9f267dcClaimThe mainnet activation of Solana's Alpenglow v4.3.2 upgrade represents the largest consensus redesign and infrastructure overhaul in Solana's historyAgreeDisagree
Cc9f267dcClaimThe Alpenglow upgrade targets a reduction in Solana's transaction finality time from approximately 12.8 seconds to roughly 150 milliseconds.AgreeDisagree
Cc9f267dcClaimSolana's Alpenglow v4.3.2 upgrade replaces Solana's existing TowerBFT consensus voting mechanism with a new system named VotorAgreeDisagree
Cc9f267dcClaimRemoving validator vote transactions from the Solana blockchain increases network capacity for user transactions, though it may reduce overall reported transaction counts.AgreeDisagree
Cc9f267dcClaimSolana scheduled an upgrade to replace the network's legacy Tower BFT consensus mechanism on Wednesday, October 21, 2026AgreeDisagree