Changes in version 0.4.0 (2026-10-29)                  

  - Initial CRAN submission.

  - New analysis functions: load_india_boundaries(), spatial_mean(),
    compare(), cross_correlation(), anomaly(), seasonal_cycle(),
    peak_month(), seasonal_stat(), regrid() and
    dewpoint_from_relative_humidity().

  - New ggplot2 plot functions: plot_map(), plot_series(),
    plot_dual_axis(), plot_ccf(), plot_scatter(), plot_bars() and
    plot_heatmap().

  - era5ify_*() with frequency = "monthly" or "yearly" return totals for
    accumulated variables such as precipitation (they returned the mean
    daily value), and always have year (and month) columns.

  - era5ify_point() snaps its download box to the 0.25 degree grid, so
    the nearest cell is a true ERA5 grid point.

  - era5ify_*() with frequency = "yearly" download the ERA5
    monthly-means product, as in the Python package. Before, they
    downloaded one value at 12:00 for each day.

  - Shared test cases in parity check that R and Python give the same
    results.