KAST, a stablecoin payment platform, announced significant updates at the Solana Breakpoint conference on December 12, 2025. The platform will now support SWIFT payments to over 125 countries without fees for transactions exceeding $5,000. Additionally, KAST will enable instant payments through local systems like Brazil's Pix and India's UPI across 55 countries. In collaboration with Gauntlet, KAST is set to launch a Savings Vault offering a 7% yield. The platform has also opened a waitlist for its enterprise version and introduced KAST Tag, facilitating global transfers via tags, email, or phone. A token launch is anticipated in early 2026.