Changes in version 2.0.2 (2025-08-26)                  

  - Minor bug fix for adjusting rate constants after fitting to standard
    "1/hour".
  - Improved pk object organization and CLI message outputs.
  - Externalized parallel processing for fitting with mirai and
    purrr 1.1.0. Now, users should set the number of processes through
    those interfaces if parallel or distributed computing is desired.
  - Setting data, error, NCA, sd, and LOQ groups now uses unquoted data
    variable names, the latter two have their own separate pkproto
    object setups: stat_sd_group() and stat_loq_group().
  - Parameter starts and and estimates are stored as singular values in
    a list-column, which allows character vector constant parameters for
    calls to more complex PBTK models, see model_httk_gas_pbtk.
  - Users may now set specific parameters to optimize and specific start
    values using the new functions set_params_optimize() and
    set_params_starts().
  - Updated cvt object to align with latest CvTdb release.

                 Changes in version 2.0.1 (2025-03-24)                  

  - Ensured only optimized parameters will be used when calculating AIC.
    This is really only a concern when using models that hold many of
    the total parameters constant.
  - Added a new feature allowing users to calculate log-likelihood from
    predictions generated outside invivoPKfit.
  - Updated documentation and cleaned up vignettes.

                 Changes in version 2.0.0 (2025-01-09)                  

  - Initial CRAN submission.
  - Redesigned package to an S3 object-oriented approach with some
    ggplot2-like syntax.
  - Re-factored function/method code to ensure the code base is more
    legible to future contributors.
  - Implemented messages that save and update data processing "status".
  - Parallel processing parameter optimization was added as an option to
    take advantage of multi-processing cores.
  - Included more chemical records than previously published in the cvt
    object, represented a processed portion of the CvTdb database.