Changes in version 0.2.0                        

New features

  - create_grid() and compute_topology() now auto-detect a sensible UTM
    projection via get_utm_crs() when projection_crs = NULL.
  - find_hex_cell_size_for_target_cells() derives sensible
    cell_size_min/cell_size_max defaults from the study-area bounding
    box when those arguments are NULL.
  - New global option hexsmoothR.verbose (default TRUE) controls all
    informational console output via the internal hex_msg() helper.

Bug fixes

  - extract_raster_data() now reprojects the hex grid to each raster's
    CRS before calling exactextractr::exact_extract(), fixing silent CRS
    mismatches with multi-raster inputs. The cropped study area is also
    rebuilt per raster.
  - extract_raster_data() returns the (possibly sampled) hex grid in the
    result list as hex_grid, and the "Sampled X from Y" log line is now
    correct.
  - get_utm_crs() correctly handles longitudes near 180 and
    auto-projects inputs to WGS84 before computing the centroid.
  - smooth_variables(): the raw element of the output now stores the
    original (unsmoothed) value of the centre cell, as documented.
  - C++ Rcpp::stop() messages no longer print literal %d placeholders.
  - compute_topology() order-N BFS rewritten using set operations; large
    grids and higher orders are noticeably faster.

Documentation

  - Vignette hexsmoothR-complete-guide has been rewritten end-to-end and
    is now driven by the bundled inst/extdata/default.tif sample raster.
  - Added NEWS.md, BugReports, and a second URL for the GitHub repo.

Internal

  - Test suite reorganised into focused files (test-create-grid.R,
    test-compute-topology.R, test-smooth-variables.R, test-utils.R,
    test-get-utm-crs.R, test-vignette-runs.R, test-vignette-workflow.R,
    test-n-order-smoothing.R).
  - useDynLib(hexsmoothR, .registration = TRUE) added so registered C++
    symbols are correctly resolved.

                        Changes in version 0.1.0                        

  - Initial release.