NEWS

epicR 1.0.0 (2026-03-10)

Modularized C++ engine into separate compilation units (model_input.cpp, model_output.cpp, model_events.cpp).
Replaced hardcoded input values with JSON-based configuration files (inst/config/config_canada.json, inst/config/config_us.json).
Added multi-jurisdiction support (Canada and US).
Added simulate() function that manages sessions automatically, replacing manual init_session() / run() / terminate_session() workflow.
Removed MI, stroke, and heart failure modules from the model.

simulate() gains n_agents parameter for setting population size.
simulate() gains return_events option for returning individual-level event data.
Real-time progress bar during simulation runs.
User-level configuration management with get_user_config(), set_user_config(), and reset_user_configs().
Validation functions now support jurisdiction-specific comparisons.
New validate_exacerbation() function consolidates exacerbation validation by sex.
Added exacerbation counts by calendar time and sex to extended outputs.
Added cost tracking outputs (cumul_cost_gold_ctime, cumul_qaly_gold_ctime) to extended results.

Fixed out-of-bounds array access in n_exac_by_medication_class (array sized [3] but exac_status can be 1--4).
Fixed event code inconsistencies and exacerbation counts per GOLD stage.
Fixed crash when using simulate() with return_events = TRUE.
Fixed auto-termination logic to prevent premature session cleanup.

Reduced installed package size (compiled shared library reduced from ~6.5 MB to ~0.4 MB).
Improved memory management in the C++ engine.
Internal functions (init_session(), run(), terminate_session()) are no longer exported.
Improved documentation and vignettes.
Added comprehensive test suite.