Changes in version 1.4.1 (2026-04-04)                  

  - Significant performance enhancements to datastep(). 83K rows now
    runs in 21.6 seconds instead of 6.7 minutes, which is a 94.6%
    improvement.
  - Allow wildcard on "keep" and "drop" parameters for datastep().
  - Significant package size reduction from 2.6MG to 745KB.

                 Changes in version 1.3.9 (2025-01-12)                  

  - Removed some test data to reduce size of package.

                 Changes in version 1.3.8 (2024-12-13)                  

  - Moved 'nanoparquet' to suggested instead of imports.

                 Changes in version 1.3.7 (2024-11-06)                  

  - Added 'parquet' file format to libname() function.
  - Added 'subset' parameter to datastep() function to filter the data
    on input.
  - Added DATA NULL capability to datastep() function.

                 Changes in version 1.3.4 (2024-07-19)                  

  - Fixed issue where libname() was failing on empty dataset.

                 Changes in version 1.3.3 (2024-05-25)                  

  - Fixed issue where lib_write() was not detecting changes to datasets
    in libname.

                 Changes in version 1.3.2 (2024-04-16)                  

  - Fixed bug on libname() when there are file names with multiple dots.

                 Changes in version 1.3.1 (2024-03-07)                  

  - Fixed bug on datastep() when running in source.all().

                 Changes in version 1.3.0 (2024-02-11)                  

  - Fixed bug on sas7bdat where class on date columns was being
    stripped.
  - Fixed bug on datastep() where expression that was removing input
    dataset attributes (like labels).

                 Changes in version 1.2.9 (2023-11-17)                  

  - Fixed bug on datastep() when there are spaces in the column names
    and output() function is used.
  - Some improvements to datastep() performance.
  - Send message on writing "sas7bdat" that functionality is not
    available.
  - Added where clause parameter to libname().
  - Added automatic variables "first.X" and "last.X" for each by
    variable.

                 Changes in version 1.2.8 (2022-09-08)                  

  - Fixed bug on datastep that sometimes was causing variables to lose
    their attributes.
  - Added "where" parameter to datastep.
  - Fix bug on datastep that was causing a single variable dataframe to
    be returned as a vector.
  - Cleared rownames on datastep exit.
  - Added "MaxChar" column to dictionary to hold the maximum number of
    characters for a data value in the column. This is different from
    "width" which is the user-defined, proscribed width. MaxChar is the
    actual width with no padding.
  - Added "rda" engine to libname.
  - Allowed single value NSE on drop, keep, and by parameter of
    datastep(). For multiple values, use the v() function.
  - Added output() function to datastep.
  - Improved datastep output column ordering. New variables were coming
    out in the opposite order they were added. Now they are better.
  - Added "set" parameter to datastep.
  - Added "merge", "merge_by", and "merge_in" parameter to datastep().
  - Fixed bug on datastep() rename.
  - Added/fixed documentation.
  - Updated logo.

                 Changes in version 1.2.5 (2022-08-08)                  

  - BREAKING CHANGE: Removed the %eq% operator from this package, as it
    has been moved to the common package. A dependency on common has
    been added to the libr package so that the %eq% operator will be
    loaded and available. However, it is still possible some changes may
    be required to make the new location for the %eq% operator work
    properly.
  - Apply "format" parameter on datastep() to both input and output
    dataset.

                 Changes in version 1.2.3 (2022-06-23)                  

  - Added "Rdata" option to libname() function engines.
  - Added "label" parameter to datastep() function.
  - Added "format" parameter to datastep() function.
  - Added lib_export() function to export a library to a different
    directory and file format.
  - Fixed bug on dictionary() that was causing a warning when there were
    no rows on the input data frame.

                 Changes in version 1.2.2 (2021-11-22)                  

  - Added FAQ and Complete Examples
  - Fixed bug on dictionary() when encountering datetime variable with
    multiple POSIX classes.

                 Changes in version 1.2.1 (2021-10-09)                  

  - Added covr and codecov
  - Fixed bug on dictionary() function that wasn't showing width
    attribute.
  - Fixed bug on datastep() when applying attributes to a calculated
    variable.
  - Small documentation fixes.

                 Changes in version 1.2.0 (2021-06-29)                  

  - Made package compatible to R version 3.6.
  - Added GitHub actions to test previous versions of R.
  - Increased performance of datastep() function generally. Benchmarks
    show about 40% improvement on average.
  - Added standard_eval parameter to libname() and lib_copy() functions
    to allow user to pass library names as a variable.
  - Added quiet parameter on libname() function to minimize console
    output if desired.
  - Added arrays parameter and dsarray() class to handle data step
    arrays. This functionality allows iteration across a list of
    variables inside a datastep().
  - Added attributes parameter and dsattr() class to handle data step
    attributes. This functionality allows the user to add attributes to
    datastep variables.
  - Fixed bug in datastep() where it was stripping column attributes on
    Base R data frames.

                 Changes in version 1.1.3 (2021-02-08)                  

  - Fixed bug on datastep when data frame/tibble had a single column.

                 Changes in version 1.1.1 (2021-01-06)                  

  - Integrated libr with logr. All library functions will automatically
    provide logging entries if the autolog feature of the logr package
    is enabled.
  - Added pkgdown site.
  - Added filter parameters to libname() and lib_load() functions. The
    filter parameter allows the user to specify which data from the
    library they want loaded into memory.
  - Changed default "na" parameter on csv export to empty string instead
    of NA to accommodate import into SAS. SAS couldn't deal with the NA
    strings.
  - Fixed bug in dbf engine when outputting tibbles.
  - Fixed bug in %eq% operator when comparing objects with different
    numbers of classes.
  - Greatly improved performance of datastep, especially on grouped
    tibbles.

                 Changes in version 1.0.1 (2020-12-09)                  

A package to create data libraries, data dictionaries, and the ability
to perform a data step. The major functions are:

  - libname() function creates a data library
  - dictionary() function creates a data dictionary
  - datastep() function steps through data row-by-row
  - %eq% allows comparison of any two R objects without error

The packages also contains a variety of functions to manipulate data
libraries:

  - lib_load(): Loads a library into the workspace
  - lib_unload(): Unloads a library from the workspace
  - lib_sync(): Synchronizes the workspace with the library list
  - lib_write(): Writes library data to the file system
  - lib_add(): Adds data to a library
  - lib_replace(): Replaces data in a library
  - lib_remove(): Removes data from a library
  - lib_copy(): Copies a data library
  - lib_delete(): Deletes a data library
  - lib_info(): Returns a data frame of information about the library
  - lib_path(): Returns the path of a data library
  - lib_size(): Returns the size of the data library in bytes
  - specs(): Create a collection of import specifications
  - import_spec(): Define an import specification for a file