Changes in version 1.0.0.9000                      

  - R >=4.0.0 is now required, in line with tidyverse standards.

                 Changes in version 1.0.0 (2023-04-13)                  

New features

  - New holiday and calendar API and corresponding vignette
    vignette("holidays-calendars") (#96):
    
      - rholiday() creates a new holiday from a holiday name and a
        rschedule that defines when the holiday occurs. There are a
        number of pre-created holidays prefixed with hol_*(), such as
        hol_christmas() and hol_us_thanksgiving(). Holidays are
        rschedules, so you can use all of the alma_*() functions on
        them.
    
      - hol_observe(), hol_offset(), and hol_rename() are three helpers
        for the holiday API. In particular, hol_observe() tweaks a
        holiday's observance date to align with when your business
        actually celebrated that holiday.
    
      - rcalendar() bundles multiple holidays together into a calendar.
        Calendars are similar to runion()s, so you can use all the
        alma_*() functions on these, but they also come with their own
        specialized API of functions that start with cal_*(), such as
        cal_match() to look up the holiday name a date corresponds to,
        and cal_events() to filter for all of the holidays within a
        particular year.
    
      - cal_us_federal() is an example calendar representing the federal
        holidays recognized in the United States.

  - New roffset() for creating an rschedule with events that are offset
    from an existing rschedule (#94).

  - New rcustom() for creating an rschedule from manually defined event
    dates (#90).

  - alma_events() has gained a year argument to limit the returned set
    of events to specific years.

  - runion(), rintersect(), and rsetdiff() have all gained ... which
    allows you to provide rschedules at creation time. This is now the
    preferred way to create these set-based rschedules (#91).

  - Steppers created with stepper() now work as .before and .after
    arguments of slider::slide_index() and friends (#80).

Lifecycle changes

  - The following functions have been deprecated in favor of more
    intuitively named alternatives (#83):
    
      - recur_on_mday() -> recur_on_day_of_month()
      - recur_on_wday() -> recur_on_day_of_week()
      - recur_on_yday() -> recur_on_day_of_year()
      - recur_on_yweek() -> recur_on_week_of_year()
      - recur_on_ymonth() -> recur_on_month_of_year()
    
    These functions are being aggressively deprecated and will be
    removed in the next minor version of almanac.

  - The family of add_*() functions has been deprecated (#92).
    
      - add_rschedule() has been deprecated in favor of using the ...
        argument of runion(), rintersect(), and rsetdiff() directly.
    
      - add_rdates() has been deprecated in favor of using a combination
        of runion() and rcustom().
    
      - add_exdates() has been deprecated in favor of using a
        combination of rsetdiff() and rcustom().
    
    These functions are being aggressively deprecated and will be
    removed in the next minor version of almanac.

  - The offset argument of recur_on_easter() is deprecated in favor of
    using roffset() (#94).

Breaking changes

  - All almanac class names are now prefixed with almanac_* to avoid
    potential clashes with other packages.

  - The recur_with_week_start() argument wday has been renamed to day.

  - The following developer facing functions have been removed because
    they are either no longer applicable or provided extension
    mechanisms that are not very useful in practice (#93):
    
      - new_rbundle()
      - new_runion()
      - new_rintersect()
      - new_rsetdiff()
      - rbundle_restore()

Bug fixes and minor improvements

  - recur_for_count() no longer overrides until (#95).

  - New almanac_since() and almanac_until() helpers to access the
    default since and until values used for all rules (#95).

  - Greatly improved the print methods of all almanac classes using cli
    (#86).

  - Updated internal JavaScript rrule library to version 2.7.2 (#82).

  - R >=3.5.0 is now required, which is in line with tidyverse
    standards.

                 Changes in version 0.1.1 (2020-05-28)                  

  - Explicitly imports R6::R6Class() and V8::v8() to avoid R CMD Check
    false alarms (#74).

  - Fix USBAN error of casting NA_real_ and NaN to integer (#72).

                 Changes in version 0.1.0 (2020-05-27)                  

  - Added a NEWS.md file to track changes to the package.