bbk 0.11.0

New features

bdf_dimension() returns the dimension structure for a given Banque de France dataset.
cnb_czeonia() returns the CZEONIA overnight reference rate from the Czech National Bank (CNB).
cnb_data(), cnb_indicators(), cnb_dimension(), cnb_tree(), and cnb_snapshots() add support for the Czech National Bank (CNB) ARAD database, using an API key from CNB_ARAD_KEY.
cnb_fx_other_rates() returns the Czech National Bank (CNB) monthly exchange rates for other (less commonly traded) currencies.
cnb_fx_rates() and cnb_pribor() add support for Czech National Bank (CNB) exchange rate fixings and PRIBOR reference rates.
snb_metadata() returns cube-level metadata (title, frequency, source, publication date) from the SNB data portal.
snb_toc() returns the publication topic tree from the SNB data portal.

Data requests no longer abort when a series uses an unsupported frequency code; the code is kept and the date is returned unparsed.
bbk_data() now returns the correct observations per series when querying multiple keys.
bdp_data() now keeps missing observations as NA instead of returning an empty result.
bis_data() and ecb_data() now keep dates and values aligned when a series has observations without a value.
boc_data() now applies start_date and end_date when fetching a group, which were previously ignored.
boj_data() no longer errors when a series omits both the English and Japanese translations of its name or unit.
onb_data() no longer errors and returns an empty table when a series has no observations in the requested period.

bbk_data(), bis_data(), and bdp_data() gained an updated_after argument for incremental retrieval of revised observations, matching the existing parameter on ecb_data(). All four now accept a Date, POSIXct, or ISO 8601 string.
bis_data() now requests the SDMX generic data format explicitly, fixing a silent regression where the BIS endpoint started returning structure-specific data and the parser produced zero rows.
Support for Banco de Portugal (BdP) data.
Support for Bank of Japan (BoJ) data.
Support for National Bank of Poland (NBP) exchange rates and gold prices.

Add optional caching of API responses via options(bbk.cache = TRUE). Cached responses are stored for 1 day by default and can be customized with options(bbk.cache_max_age = seconds). Use bbk_cache_dir() to find the cache location and bbk_cache_clear() to clear it.
Support for Bank for International Settlements (BIS) data.
Support for Norges Bank (NoB) data.
boc_data() now returns a value column instead of rate for consistency with other data functions.
bde_latest() returns the most recently published value for one or more BdE series.
bbk_dimension() returns the dimension structure for a given Bundesbank dataflow.
bis_dimension() returns the dimension structure for a given BIS dataflow.
ecb_data() gains an updated_after parameter to retrieve only observations updated after a given timestamp.
ecb_dimension() returns the dimension structure for a given ECB dataflow.
nob_dimension() returns the dimension structure for a given Norges Bank dataflow.
snb_dimension() returns the dimension structure for a given SNB cube.
srb_calendar() returns Swedish banking calendar day information.
srb_cross_rates() computes cross exchange rates between two Riksbank currency series.
Support for Sveriges Riksbank (SRb) data.

Migration to data.table package. Internal data manipulation is now done using data.table and all functions return data.table objects.
Support for Swiss National Bank (SNB) data.

New function ecb_euro_rates() to get euro foreign exchange reference rates from the European Central Bank (ECB).