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Submission notes — 2.0.0

This is a major version with breaking changes. The Stan backend has been swapped from rstan to cmdstanr, and CmdStan is now a system dependency rather than something compiled at install time.

  • No C++ code is compiled when the package is installed; LinkingTo is empty.
  • Stan models compile on first use via cmdstanr's lazy compilation (cached on disk by cmdstanr after the initial build).
  • Users must install CmdStan once via cmdstanr::install_cmdstan() before fitting models. Tests and examples that fit models are wrapped in \dontrun{} / skip_on_cran() so CRAN check machines do not need CmdStan.
  • Minimum R version raised to 4.4.

R CMD check results

No ERRORs or WARNINGs expected. The package size NOTE persists due to the bundled example data and inst/stan files; the previous "GNU make required" NOTE is gone since rstan is no longer linked against.