Changes in version 0.1.1                        

  - Added a Summary group generic method so that range(), min(), max(),
    sum(), and prod() work on numeric series. Previously these fell
    through to base R defaults and operated on the internal
    representation; e.g. range(natural1()) wrongly returned c(0, Inf)
    instead of c(1, Inf).

                 Changes in version 0.1.0 (2026-03-31)                  

  - Initial CRAN submission.