Changes in version 0.2.0.9000                      

MINOR IMPROVEMENTS

  - npi_search() now normalizes address_purpose values to API constants
    and accepts case-insensitive input.
      - npi_is_valid() now supports vector inputs and returns logical
        vectors.
      - npi_search() returns a typed empty npi_results object when no
        records are found.

DOCUMENTATION FIXES

  - Clarified npi_summarize() taxonomy fallback behavior when no primary
    taxonomy is marked.

                 Changes in version 0.2.0 (2022-11-14)                  

MINOR IMPROVEMENTS

  - npi_flatten() is now covered by unit tests (#15 and #73).
      - npi_search() provides an informative error message when internet
        is off or the endpoint is unreachable (#52).
      - npi_search() now checks for legal use of special characters
        prior to submitting an API request (#53).
      - npi_search() now checks for legal use of wildcard characters
        prior to submitting an API request (#54).
      - User agent default now includes the installed package version
        (e.g., "npi/0.2.0") (#55).
      - checkmate package is now in Imports rather than Suggests so
        tests are run on it (#57).
      - npi_search() now has test coverage for the case where empty
        results are returned (#59).
      - npi_search() now provides a message indicating how many records
        are being requested (#72).
      - npi_search() now handles epoch field conversion to date format,
        fixing a breaking API change. Thanks to @trang-n for reporting
        the problem (#74) and @parmsam for submitting a PR that fixed it
        (#75).

BUG FIXES

  - npi_summarize() now handles NPI records in which all provider
    taxonomy records have been flagged as non-primary (#51).
      - User functions are now backwards-compatible with tidyr <= 0.8.99
        (#56).

DOCUMENTATION FIXES

  - Grouped the reference index to highlight the most important
    functions (#45).
      - Added API URL to DESCRIPTION file (#47).
      - Clarified description of the npis dataset (#48).
      - Added Advanced Use vignette (#49).
      - Clarified the API's rate limitation (#50).
      - Removed unused internal functions delay_by() and remove_null()
        (#58).
      - Acknowledged rOpenSci reviewers, Emily Zabore (#63) and Mattias
        Grenié, in DESCRIPTION. Thanks! (#60)
      - README now clarifies that enumeration_type is returned, not
        provider_type (#64).
      - README warns that code results in README may not be reproducible
        since they reflect dynamic, stateful data (#65).
      - Vignettes organize search arguments by name instead of
        description (#66).
      - npi vignette details what npi_summarize() (#67) and
        npi_flatten() (#68) do.
      - REAMDE and npi vignette provide use cases for npi_is_valid()
        (#69).
      - npi_search() documentation now links to the NPPES data
        dictionary to help users understand the API results (#70).

                        Changes in version 0.1.0                        

MINOR IMPROVEMENTS

  - Added package website
      - Added introductory vignette (#13) (#29) @parmsam
      - Added example to documentation of each exported function (#32)
      - npi_is_valid() now uses the checkLuhn package for Luhn checking
        (#34)
      - tidyr::unnest() now works with old and new versions of tidyr

DOCUMENTATION FIXES

  - Updated redirected URLs to new targets