Presentation at the International Symposium on Forecasting, Thessaloniki, Greece, and at useR!2019, Toulouse, France. Modern time series are often high-dimensional and observed at high frequency, but most existing R packages for time series are designed to handle low-dimensional and low frequency data such as annual, monthly and quarterly data. The feasts package is part of new collection of tidyverts packages designed for modern time series analysis using the tidyverse framework and …