Release notes will live here.

Vascular age now follows Dr Lutz Kraushaar's vascular BioAge method (Kraushaar 2018) as his workbook sets it out. It reads your blood pressure, age and height, and for women also the day's resting heart rate. It replaces an approximation that compared your estimated pulse wave velocity with population percentiles. Blood pressure recorded in the mobile app now gets its estimated PWV and vascular age too, as readings typed on the web already did, and both are recalculated when you edit the reading. Withings and Oura readings keep the values those devices report.

Metabolic age is now S-AnthropoAge (Fermín-Martínez and colleagues, Aging Cell 2023). It reads your BMI and waist-to-height ratio, for your age and sex, against 10-year survival in US national health survey data (NHANES), set so that the average US adult reads their own age. Each day uses the latest waist you measured on or before it; without one, your waist is estimated from your body fat, and the chart's tooltip says which. A low weight for your height counts against you, as it did in that data. Your earlier days are recalculated the same way, and the statistics panel now adds your body fat for your age: for example, leaner than 92% of men your age.

Max muscular potential is now a fat-free mass index ceiling of 25 for men and 22 for women, normalized to your height (Kouri and colleagues, 1995). The earlier formula gave a man and a woman of the same height the same answer.