Changes in version 0.3.0 (2020-04-16)                  

NEW FEATURES

  - oc_coci_refs(), oc_coci_cites(), and oc_coci_citation() now support
    more than one DOI or COCI identifier passed in. oc_coci_meta()
    already supported more than one identifier; now all four oc_coci*
    methods support more than one identifier. The caveat is that the API
    route behindn oc_coci_meta() supports >1 identifier in a single http
    request - whereas the API routes behind the other functions only
    support one identifier per request, so they make an http request for
    each identifier passed in (#6)

MINOR IMPROVEMENTS

  - added tests for Cloudflare http status codes (#7)

                 Changes in version 0.2.2 (2019-12-09)                  

BUG FIXES

  - better check if http requests will work before running examples that
    require http requests (#5)

                 Changes in version 0.2.0 (2019-11-07)                  

NEW FEATURES

  - the functions oc_doi2ids, oc_pmid2ids, and oc_pmcid2ids (see
    ?oc_lookup) now all accept more than 1 identifier. the underlying
    SPARQL queries were modified to make this possible. (#1)
  - three new package datasets (oc_dois, oc_pmids, oc_pmcids) with
    vectors of identifiers of each of those types for testing and
    examples

BUG FIXES

  - fixed an error in parsing results in oc_lookup functions - this fix
    was later changed as part of another fix, but still appreciated (#2)
    (#3) thanks @Selbosh
  - fix to parsing in oc_lookup functions: only retrieve data.frame
    columns if they exist - prevents error on retrieving a column that
    doesn't exist (#4) thanks @Selbosh

                 Changes in version 0.1.0 (2019-08-24)                  

NEW FEATURES

  - Released to CRAN