Solana's Alpenglow v4.3.2 upgrade set for mainnet activation after successful test migration
Solana's Alpenglow v4.3.2 test cluster migration has been declared successful by Anza CEO, with mainnet activation scheduled for October 21, 2026. The upgrade is expected to reduce transaction finality time from approximately 12.8 seconds to around 150 milliseconds, representing a 99% speed improvement.
