Changes in version 0.2.2                        

Bug fixes

  - syrona_connect() now defaults to read_only = FALSE. The previous
    default of TRUE always failed, because CDMConnector validates a CDM
    by writing a probe table. This also fixes extract_all() when db is a
    DuckDB file path.

Documentation

  - README and vignettes install from CRAN; the GitHub install is listed
    as the development version.
  - README demo instructions use the bundled demo data instead of a
    repository clone.
  - Removed the read_only = TRUE examples and the claim that connections
    are read-only by default.

                 Changes in version 0.2.1 (2026-09-04)                  

CRAN review fixes

  - Removed single quotes around the OMOP CDM acronym in Title and
    Description.
  - Documented the return value of load_syrona_theme(), run_app() and
    syrona_disconnect().
  - Replaced the \dontrun{} example on run_app() with an if
    (interactive()) block.
  - run_app() now restores the user's syrona.data_dir option on exit,
    and the examples reset any option they set.

                        Changes in version 0.2.0                        

New features

  - Added a bundled demo dataset (inst/extdata/demo): a
    curated 32-concept subset (conditions, procedures, drugs) that runs
    the full comparison workflow with no database. See RUN_DEMO.html or
    ?compare_all for a runnable example.
  - compare_all() now ships a runnable \donttest example driven by the
    demo data.

Improvements

  - Shipped standard-vocabulary lookups in inst/extdata/ so a fresh
    install has a working conditions chapter map and procedure
    device/site/morphology enrichment (icd10_lookup.csv and
    vocabulary/*.csv, resolved via syrona_extdata()).
  - Dashboard "About" panel now documents all four procedure attribute
    filters (site, method, device, morphology) and corrects the Sex/Age
    filter behavior (display-only; the meta-analysis is precomputed).
  - Population pyramids degrade gracefully with an explanatory message
    when a dataset has no demographics table (e.g. the demo).
  - DESCRIPTION metadata polished for CRAN (Paule-Mandel reference DOI,
    Depends: R (>= 4.1.0)).

Bug fixes

  - Corrected the fold-threshold glossary wording (similarity boundary,
    not a clinical-relevance boundary).