Changes in version 0.3.0                        

Major Changes

  - BREAKING: Upgraded Kiwi library from v0.11.2 to v0.21.0
  - BREAKING: Now requires C++17 compatible compiler (upgraded from
    C++11)
  - Updated build system to support new Kiwi version and C++17
    requirements

New Features

Advanced Analysis Features

  - Added Morphset class for blocking specific morphemes from analysis
    results
  - Added Pretokenized class for guided morphological analysis with
    predefined token boundaries
  - Added typo correction functionality with customizable rules and cost
    thresholds

Enhanced API

  - Extended analyze() and tokenize() functions with new optional
    parameters:
      - blocklist: Accept Morphset objects to block specific morphemes
      - pretokenized: Accept Pretokenized objects for guided analysis
  - Added new methods to Kiwi class:
      - create_morphset(): Create morpheme sets for blocking
      - create_pretokenized(): Create pretokenized objects for guided
        analysis
      - set_typo_correction(): Configure typo correction settings
      - get_typo_correction_settings(): Get current typo correction
        configuration

New Classes and Methods

  - Morphset class with methods:
      - add(): Add single morpheme to block list
      - add_multiple(): Add multiple morphemes at once
      - size(): Get number of morphemes in set
      - get_morphemes(): Get list of all morphemes
      - clear(): Clear all morphemes
  - Pretokenized class with methods:
      - add_span(): Add text span for tokenization
      - add_token_to_span(): Add token to specific span
      - add_tokens_to_span(): Add multiple tokens to span
      - span_count(): Get number of spans
      - token_count(): Get total number of tokens
      - get_span_info(): Get information about specific span
      - get_all_spans(): Get information about all spans
      - clear(): Clear all spans and tokens

Improvements

  - Enhanced error handling and validation for all new features
  - Improved memory management for C++ objects with proper finalizers
  - Updated documentation with comprehensive examples for new features
  - Added extensive test coverage for new functionality
  - Performance optimizations through upgraded Kiwi library

Backward Compatibility

  - All existing code continues to work without modification
  - New parameters are optional with sensible defaults (NULL)
  - Existing function signatures and return formats unchanged
  - No breaking changes to user-facing API (except system requirements)

Documentation Updates

  - Updated README with new features and migration guide
  - Enhanced vignettes with examples of new functionality
  - Added comprehensive roxygen2 documentation for all new classes and
    methods
  - Updated Korean documentation (README_kr.Rmd and vignettes)

System Requirements

  - NEW: C++17 compatible compiler required
  - NEW: Updated build system with enhanced compiler detection
  - All other system requirements remain the same

Known Issues

  - Users with older compilers may need to upgrade to C++17 support
  - Custom build configurations may need adjustment for new C++17
    requirements

Migration Guide

For Existing Users

No code changes required. All existing functionality works as before.

To Use New Features

1.  Morpheme Blocking: Create morphset with kw$create_morphset() and use
    blocklist parameter
2.  Typo Correction: Enable with kw$set_typo_correction(TRUE)
3.  Guided Analysis: Create pretokenized objects with
    kw$create_pretokenized()

System Upgrade

Ensure your system has a C++17 compatible compiler before upgrading.

                 Changes in version 0.2.5 (2022-08-12)                  

  - Fix url on readme for cran.

                        Changes in version 0.2.4                        

  - Rebuild document with roxygen2 7.2.1

                 Changes in version 0.2.3 (2022-04-19)                  

  - Fix cran test fail.

                 Changes in version 0.2.2 (2022-04-17)                  

  - size to 30 for [-Wvla]

                        Changes in version 0.2.1                        

  - Add Stopwords add() method form param default value NA.
  - Fix Stopwords add_from_dict() param pass.

                        Changes in version 0.2.0                        

  - Change _tbl function to base. tokenize() return tibble base and
    remove tokenize_tbl().
  - Fix Kiwi when builder updated, kiwi rebuild.
  - Change git clone to curl release source download for mac.
  - Change tokenize function stopwords params default to TRUE.
  - Update Model version to 0.11.2

                 Changes in version 0.1.3 (2022-04-04)                  

  - Fix bashism on configure file for cran.

                        Changes in version 0.1.2                        

  - Fix -Wbitwise-instead-of-logical warning for cran.

                 Changes in version 0.1.1 (2022-03-31)                  

  - Fix -Wreorder warning for cran.

                        Changes in version 0.1.0                        

  - Change backend python to cpp.

                        Changes in version 0.0.2                        

  - Package name to lower.
  - Kiwi version 0.10.3 support.
  - Python version 3.10.2 support.

                        Changes in version 0.0.1                        

  - Fix add_user_word function with cache.

                     Changes in version 0.0.0.9001                      

  - Added a NEWS.md file to track changes to the package.