Changes in version 3.0.0 (2026-10-18)                  

This release brings the package back to CRAN. The previous CRAN release
was 1.2-0.

Changes that affect existing code

  - All functional tools are now computed on Hill-number profiles of
    order q (default domain 0 <= q <= 2) instead of the Patil-Taillie
    beta profile on -1 <= beta <= 1. The two profiles are linked by q =
    beta + 1, but they are measured on different scales, so numerical
    results differ from those of version 1.2-0.
  - The functions beta(), beta_plot(), betaprime(), betaprime_plot(),
    betasecond(), betasecond_plot(), curvature(), curvature_plot(),
    radius(), radius_plot(), arc(), area() and ranking() are deprecated.
    They issue a warning and return the corresponding Hill-number tool.
  - alltools() returns a list and no longer draws plots. export_plots()
    requires the output path in file.
  - Functions no longer print intermediate objects or attach packages.

New features

  - hill_profile() evaluates the profile on any grid or set of orders,
    including Inf; negative orders are available on request.
  - hill_derivative(), hill_curvature() and hill_radius() use analytical
    first and second derivatives.
  - hill_cum() and hill_area() compute cumulative integral functions and
    areas by the trapezoidal rule, with an optional baseline.
  - hill_total_change() reports changes in area between consecutive
    rows.
  - hill_surface(), hill_surface_plot() and hill_surface_compare()
    compute, draw and compare biodiversity surfaces over time, either as
    rotatable plotly figures or as static perspective plots.
  - Input is validated, and row names are kept in all outputs.
  - Added tests and a vignette.