npi 0.2.0 (2022-11-08)

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).

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).

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).

npi 0.1.0 (2020-03-03)