Changes in version 0.2.2 (2026-09-05)                  

  - Substantially improved non-trace batch-rating performance for
    standard rating plans. Exact lookup structures and rating-step
    metadata are now precompiled when a rating plan is created, and
    rating-data representations used repeatedly by lookups are cached
    once per batch.
  - Reworked exact batch lookup to use keyed vector matching while
    preserving rate-set selection, multi-variable interactions,
    specificity fallback, and automatic date-based rate-set selection.
    Plans requiring unsupported vectorized behavior continue to use the
    general reference engine.
  - Improved entity-workflow performance. Common sum, mean, and count
    aggregations now use grouped vectorized passes, and simple
    unique-key entity joins use direct matching rather than a general
    merge.
  - score_entity_rows() continues to provide the optimized non-trace
    entity-scoring path; rate_entities() retains detailed trace output
    for audit and reconciliation workflows.
  - Internal compiled caches are rebuilt automatically when factor
    lookup structure or rating specifications change. Value-only
    term_value changes can reuse the compiled lookup structure.
  - These performance changes do not require changes to existing
    factor-table or rating-specification formats and add no new runtime
    dependencies.
  - Added regression tests comparing optimized batch results with the
    trace-producing reference engine and added a repository-only
    performance benchmark script.

                 Changes in version 0.2.0 (2026-08-09)                  

  - Initial CRAN submission.
  - Added normalized table-driven insurance rating plans.
  - Added exact and interpolated factor lookup.
  - Added coverage-specific rating specifications.
  - Added entity-level rating and aggregation.
  - Added custom calculation functions.
  - Added step-by-step trace output and trace reshaping tools.