Changes in version 0.3.0 (2025-09-08) - Add fit$simulator() to simulate data - Add vignette showing multi-stanza features by fitting age-composition data using data for Gulf of Alaska pollock and sablefish - Update model description vignette to add overview of age- and size-structured dynamics Changes in version 0.2.0 (2024-11-25) - Add functionality for multi-stanza groups (i.e., age-structured dynamics) Changes in version 0.1.0 - Initial public release