Changes in version 0.2.4 (2023-09-02)                  

  - Added a method for ggplot2::scale_type() to avoid unnecessary
    warnings.
  - The double-bracket indexing method got an additional argument
    keep_label to specify whether the variable label should be retained.
  - Package documentation now uses the "_PACKAGE" feature.

                 Changes in version 0.2.3 (2022-02-06)                  

  - Added as() methods to support the S4 class system.
  - For the data-frame method, if names of to-be-assigned values (i.e.,
    keys) are duplicated, an informative error message is returned.
  - Added vignette specifying desired behavior of the tiny_labelled
    class.

                 Changes in version 0.2.2 (2021-12-06)                  

  - Added methods for group generics Math, Ops, Summary, and Complex
    from the base package.

                 Changes in version 0.2.1 (2021-03-27)                  

  - Removed LazyData from DESCRIPTION file

                 Changes in version 0.2.0 (2021-02-06)                  

  - Added a NEWS.md file to track changes to the package.
  - Input validation now ensures that variable labels are (1) atomic
    vectors (i.e., no list-like objects) of (2) length equal to zero or
    one that (3) are not NULL.
  - In variable.data.frame()<-, NULL elements of a value list are now
    ignored, which simplifies extracting variable labels from one data
    frame and assigning these variable labels to the corresponding
    columns of another data frame.
  - In assign_label.default(), label and class attribute are now
    directly set, which comes with a small performance benefit.