Changes in version 0.3.0                        

New features

  - Orthanc and OrthancAsync initialization methods (i.e., Orthanc$new()
    and OrthancAsync$new()) have gained several new arguments to provide
    users more control over how HTTP requests are performed.
      - params, headers, and cookies set query parameters, headers, and
        cookies to include in every request.
      - timeout sets the maximum number of seconds to wait for the
        request to complete.
      - rate_limit can be used to throttle requests so that no more than
        the maximum capacity of requests are performed during the fill
        time.
      - verify controls whether to verify the SSL/TLS certificate when
        making requests.

Minor improvements and bug fixes

  - Improved checking of argument types when passed to the
    initialization methods of Orthanc and OrthancAsync objects.

                 Changes in version 0.2.0 (2026-03-11)                  

New features

  - Fixed an issue with OrthancAsync where requests would fail when
    requiring basic authentication. This was due to credentials getting
    removed during the serialization of a httr2_request before sending
    it to the daemon mirai process. The private method
    $request_perform() now adds the basic authentication (Authorization)
    header on the mirai worker instead of the main process.

  - orthanc has gained support for batch exporting image files (PNG or
    JPEG) for Instances (retrieve_and_write_images()), NIfTI files for
    Instances and Series (retrieve_and_write_nifti()), if the Orthanc
    Neuroimaging plugin is available, and ZIP Archives for Series,
    Studies, and Patients (retrieve_and_write_archives()).
    
      - retrieve_and_write_images(), retrieve_and_write_nifti(), and
        retrieve_and_write_archives() have support for progress bars and
        parallel exporting using mirai, similar to
        retrieve_and_write_patients().

  - Major refactor of resource download methods so that output formats
    aren't ambiguous across the various resource types:
    
      - Instances now have $download_dicom() (formerly $download()),
        $download_nifti() (only works if Orthanc Neuroimaging plugin is
        avialable), and $download_image() (if R packages png or jpeg are
        installed).
      - Series now have download_archive() (formerly download()) and
        download_nifti() (only works if Orthanc Neuroimaging plugin is
        avialable).
      - Studies now have download_archive() (formerly download())
      - Patients now have download_archive() (formerly download())

  - New methods and fields have been added to resources:
    
      - Instances now have:
          - download_dicom(): Download DICOM file to a path
          - download_image(): Download instance as an image
          - has_label(): Test if resource has label
          - list_frames: List frames
          - frames: Number of frames
          - rows: Number of rows
          - columns: Number of columns
          - shape: Shape
          - dim: Number of dimensions
          - slice_thickness: Slice thickness
          - pixel_spacing: Pixel spacing
      - Series now have:
          - download_archive(): Download zip archive to path
          - has_label(): Test if resource has label
          - num_instances: Number of instances
      - Studies now have:
          - download_archive(): Download zip archive to path
          - has_label(): Test if resource has label
          - series_ids: Series identifiers
          - instances_ids: Instances identifiers
          - num_series: Number of series
          - num_instances: Number of instances
      - Patients now have:
          - download_archive(): Download zip archive to path
          - has_label(): Test if resource has label
          - studies_ids: Studies identifiers
          - series_ids: Series identifiers
          - instances_ids: Instances identifiers
          - num_studies: Number of studies
          - num_series: Number of series
          - num_instances: Number of instances

  - $labels active binding for resources can now be used to add new
    labels to a resource by assigning into the field (e.g.,
    Resource$labels <- "label").

Minor improvements and bug fixes

  - Improved support for progress bars and parallelization for
    find_and_filter().

  - Instance$download_nifti() and Series$download_nifti() now use gzip
    (nii.gz) compression by default.

  - $image_orientation_patient() and $image_position_patient() now
    return parsed numeric vectors instead of character vectors.

  - All $date or $*_date fields now return "Date" class vectors instead
    of character vectors.

  - $file_size now returns "pretty" units thanks to
    prettyunits::pretty_bytes().

  - Updated $print() method for resources to show locked state, if
    locked.

  - Added new $is_locked field to check whether child resources are
    locked or not.
    
      - This active binding can be used to modify locked state through
        assignment.

                 Changes in version 0.1.0 (2026-03-03)                  

  - Initial public release.