Downloads one explicitly requested data release, verifies its checksum, and
caches it in the user's data directory on R 4.0 or newer. On older supported
R versions, CRAN policy does not permit a package-managed persistent cache,
so the verified file is retained only for the current R session. The
function never resolves aliases such as "latest", and no lookup function
downloads data implicitly.
download_zip_data_bundle(version, force = FALSE)A validated zipcodeR_data_bundle.
Exact registered data version, for example "2026.09".
Re-download and replace a verified cached copy.