Changes in version 1.0.2.9000                      

  - Internal code paths were simplified with AI-assisted refactoring to
    reduce duplicated result handling, status validation and dyadic
    recoding logic.
  - igo_dyadic() now computes dyadid with both state codes, as
    documented.
  - User-facing messages were revised for clearer wording and consistent
    argument names.

                 Changes in version 1.0.2 (2026-05-23)                  

  - Package documentation was reviewed and updated with AI-assisted
    editing.

                 Changes in version 1.0.1 (2026-03-13)                  

  - Updated the COPYRIGHTS file.
  - Migrated documentation and vignettes to Quarto.

                 Changes in version 1.0.0 (2026-01-17)                  

First major version of the package.

  - The minimum R version required is now 3.6.0. No visible change for
    users.

                 Changes in version 0.2.1 (2024-12-17)                  

  - Updated documentation.

                 Changes in version 0.2.0 (2024-02-05)                  

  - Refactored internal code. Users should not notice any visible
    change.
  - Updated documentation and basic package maintenance.
  - igo_dyadic() now also accepts a vector of states in the country1
    argument.
  - igo_recode_igoyear(), igo_recode_stateyear() and igo_recode_dyadic()
    are new helper functions for converting numerical values to labels.

                 Changes in version 0.1.5 (2023-04-14)                  

  - Updated documentation and examples.

                 Changes in version 0.1.4 (2022-08-13)                  

  - Updated documentation due to a CRAN notice.

                 Changes in version 0.1.3 (2021-10-20)                  

  - Updated documentation.

                 Changes in version 0.1.2 (2021-08-04)                  

  - Compiled the "Mapping IGOs" article as a vignette.
  - Updated documentation. It is now in Markdown format using
    roxygen2md::roxygen2md().
  - Moved tests to testthat.

                 Changes in version 0.1.1 (2021-01-27)                  

  - Removed lifecycle badge.

                        Changes in version 0.1.0                        

  - Generalized search to ignore case.
  - More vignettes are available on the website.
  - cow_country_codes is now internal.
  - igo_dyadic() was added.
  - igo_members() was vectorized.
  - igo_search_states() was added.
  - igo_state_membership() was added.
  - igoR::states2016 was added as a replacement for cow_country_codes.