2026-09-30 — v1.0.0 initial launch. The Coast FIRE Calculator goes live with an inflation-adjusted calculator (current age, invested assets, annual spending, annual savings, expected return, inflation, safe withdrawal rate, target retirement age), a year-by-year growth chart in today’s dollars, a progress bar against your Coast FIRE number, shareable result links via URL parameters, and a plain-English guide to the math.
Launch integrations: cookie-consent banner, consent-based analytics, and optional sign-in via Google. No calculator input is ever transmitted to the server.