{"id":"tp-24478","type":"article-newspaper","title":"Solana Activates Alpenglow on Testnet for Faster Transaction Finality","author":"Simon Yoon","publisher":"TOKENPOST Inc.","url":"https://www.tokenpost.com/news/technology/24478","datePublished":"2026-09-26T21:48:26.000Z","dateModified":"2026-09-26T21:48:26.000Z","language":"en","abstract":"The upgrade targets about 150-millisecond finality overall, with a fast path targeting 100 milliseconds, but neither has been demonstrated on mainnet.","section":"Technology","references":[{"title":"Solana’s earlier Alpenglow activation plan","url":"https://www.tokenpost.com/news/technology/23346"}]}