https://tangudu.com/changelog What went out recently across SchemeBook, Vybro and Usher. en Fri, 04 Sep 2026 00:00:00 GMT Customer passbook. Customers sign in with a phone number and an OTP to see every installment they've paid, and download a PDF statement. Fri, 04 Sep 2026 00:00:00 GMT https://tangudu.com/changelog 2026-09-04-schemebook SchemeBook Books that can't be quietly edited. Counter payments clear the oldest due installment first onto gapless numbered receipts, scheme rules are versioned so a customer's terms never change after they sign up, and every financial action is logged with actor, timestamp and before/after. Nothing can be hard-deleted. Fri, 28 Aug 2026 00:00:00 GMT https://tangudu.com/changelog 2026-08-28-schemebook SchemeBook WhatsApp reminders ahead of each due date, with a pay link attached. Falls back to SMS when the message doesn't land. Fri, 21 Aug 2026 00:00:00 GMT https://tangudu.com/changelog 2026-08-21-schemebook SchemeBook Host onboarding opens on the Ha Giang Loop — first operators listing their trips. Fri, 14 Aug 2026 00:00:00 GMT https://tangudu.com/changelog 2026-08-14-vybro Vybro Spreadsheet import for shops moving off paper. Running schemes arrive with their paid history, so dues and maturity dates are right on day one, and the import either commits whole or not at all. Fri, 07 Aug 2026 00:00:00 GMT https://tangudu.com/changelog 2026-08-07-schemebook SchemeBook