Solana's SOL reached a session high of $119.90, testing the $118 to $120 resistance zone for the first time in about eight months after recovering from a $60 low earlier this year. Technical analysts cited a developing weekly golden cross and reclaimed long-term moving averages, while open interest reached about $2.97 billion, according to Santiment Intelligence. Separately, Solana moved its Alpenglow consensus upgrade from a smaller community cluster to public testnet testing, targeting finality of roughly 150 milliseconds versus about 12.8 seconds under the current system. Alpenglow would replace TowerBFT with Votor while leaving transaction execution largely unchanged. The test requires Agave 4.3; Firedancer and Frankendancer do not yet support the upgrade. Anza has listed September 28 for tentative Agave 4.3 feature activation on mainnet, but that is not a confirmed Alpenglow launch date.