Solana’s long-anticipated Transaction V1 upgrade went live on September 9, 2026, increasing the maximum size of a single transaction from 1,232 bytes to 4,096 bytes. The new format allows zero-knowledge proofs and large group approvals to settle in one transaction, after running on testnet since September 1. SOL was trading near $103.91 on CoinMarketCap, with immediate support around $102.94 and resistance near $105. Traders are watching the September 11 CPI release as the next catalyst. Bitget noted that holding $103.35 could keep $109 in reach, while a break below $98.76 might expose a slide toward $89.98. Longer term, Standard Chartered has pointed to a possible $1,000 SOL around 2029, while Changelly places that timeline between 2028 and 2031. An October follow-up upgrade, Alpenglow, is expected to reduce finality from about 12.8 seconds to roughly 150 milliseconds.
Jack Dorsey’s Block filed on September 8 to create Builders Bank and Trust, a national trust bank intended for bitcoin and stablecoin custody under federal oversight. The OCC has taken about 40 new bank requests in roughly 18 months, with 23 of them tied to crypto, according to Parameter. CoinCentral reported that 21 were approved and two were denied, with Revolut cleared the previous week. Bitcoin was trading near $79,346. On September 4, US spot bitcoin ETFs recorded $731 million in single-day inflows, the largest since January 14.
XRP was also in focus before the September 15 CLARITY Act vote. It traded around $1.42, with XRP ETF inflows rising from $343 million to about $502 million during August, according to Yahoo Finance. Crypto.news noted the token remains about 71% below its 2025 peak.
