Changes in version 0.1.0 (2026-01-12)                  

Major New Features

  - Enhanced "Pipeline" Interface: The m61r object now allows for a more
    fluid chaining of "pipe-like" operations.
  - Support for Scoped Operations:
      - Introduced .SD() and .select_cols() for advanced column
        manipulation within the object's environment.
      - Added the across() function, allowing a function to be applied
        to multiple columns simultaneously within mutate() and
        summarise().
  - Temporal Orchestration:
      - Added the $explode() method to explode list-columns, typically
        used after creating temporal sequences.
      - Added $join_asof() for proximity-based temporal joins
        (backward/forward), essential for asynchronous time-series.
  - Conditional Logic: Implemented case_when_ to allow complex
    vectorised syntax within the m61r object.
  - I/O: Implemented write.csv to allow exporting data.frame from the
    m61r object.

API Improvements

  - summarise_: Complete code refactoring of name management. Named
    expressions (e.g., avg = ~mean(x)) and list expressions (e.g.,
    ~across(...)) now correctly handle suffixes and prevent NA column
    names.
  - mutate_: Optimized internal evaluation for better memory management
    on large data frames.
  - Joins: Improved stability of join functions (inner, left, right,
    full, semi, anti) across mixed column types.

Documentation

  - Created two new detailed vignettes:
    1.  m61r_advanced: Complex manipulation and functional programming.
    2.  m61r_temporal: Specific management of time-series data.