Changes in version 0.1.0 (2026-10-28) New Features - Initial CRAN release - Full support for DELTA character list files - Full support for DELTA item description files - Support for DELTA specifications files - Rcpp-based C++ integration for high performance - Comprehensive R interface with data frames and lists - Search and matching functionality for taxonomic identification Data Import - load_delta() - Load DELTA files into R - Support for both required (chars, items) and optional (specs) files Data Exploration - characters_df() - View character definitions as data frame - items_df() - View item information as data frame - get_item() - Retrieve complete item data Search and Analysis - find_matching_items() - Find items matching character values - item_matches() - Test if an item matches specific values Utility Functions - parse_attribute() - Parse DELTA attribute strings - strip_comments() - Remove DELTA comments - delta_char_types() - Get character type constants Example Data - Viola (Viola spp.) dataset - Grass (Poaceae) dataset Acknowledgements Based on the tDelta C++ library by Denis Ziegler, part of the Free DELTA project.