Changes in version 0.3.1 (2026-10-07)                  

Breaking changes

  - create_bfile() no longer writes to the working directory by default:
    output_path must now be supplied.

Bug fixes and improvements

  - New oeis_available() reports whether the OEIS web service can be
    reached (it may refuse requests from some cloud and CI hosts).
  - get_graph_image() failed whenever 'IRdisplay' was installed (it
    passed an argument display_png() does not accept). It now calls
    display_png() correctly, and only inside a Jupyter kernel.
  - HTTP requests now identify themselves with an oeis.tools User-Agent
    instead of a browser User-Agent string. (The 0.3.0 NEWS incorrectly
    said this was already the case.)
  - Network and HTTP failures now raise an informative error naming the
    URL, and Sequence() reports a clear error when no OEIS entry exists.

Documentation

  - Every exported function now has examples; examples that need the
    internet run only when oeis_available() is TRUE.
  - Documented the return value of plot.Sequence().
  - New package title and description.

                        Changes in version 0.3.0                        

New features

  - Sequence gains get_bibtex(), get_data_values(), get_graph_image(),
    get_graph_png() and get_keyword_description().
  - BFile gains get_bfile_indices(); new create_bfile() helper.
  - plot_data() supports overlaying several b-files on one plot (p
    argument) and returning the plot object (return_plot).

Documentation

  - New "Getting started" vignette and expanded README.
  - Public API now mirrors the Python oeis-tools package.
  - Added citation information (citation("oeis.tools") and
    CITATION.cff).

Internal

  - Expanded test suite; package passes R CMD check --as-cran.

                        Changes in version 0.2.0                        

  - Initial release: Sequence and BFile S3 classes, OEIS metadata and
    b-file fetching, gmp::bigz term storage, and ggplot2 plotting.