Changes in version 0.2.0.9000                      

                 Changes in version 0.2.0 (2023-03-17)                  

  - The family of "set" functions has been renamed to include a set_
    prefix, for example, iv_union() is now iv_set_union(). This has been
    done to align with the new family of vctrs set functions, like
    vec_set_union(), and to reduce the ambiguity between the new
    iv_diff() helper and iv_difference() (now iv_set_difference()). The
    old names are deprecated, and will be removed in a future release
    (#35).
    
      - iv_complement() -> iv_set_complement()
      - iv_union() -> iv_set_union()
      - iv_intersect() -> iv_set_intersect()
      - iv_difference() -> iv_set_difference()
      - iv_symmetric_difference() -> iv_set_symmetric_difference()
      - The same changes have been made for the iv_pairwise_*()
        functions that share the same suffixes.

  - New family of functions that perform the inverse of iv_between(),
    i.e. rather than detecting if needles[i], a vector value, falls
    between any intervals in haystack, an iv, these detect if
    needles[i], an interval, includes any value from haystack, a vector.
    These functions are: iv_includes(), iv_locate_includes(),
    iv_count_includes(), and iv_pairwise_includes() (#41).

  - New family of functions for identifying interval containers, which
    are intervals that aren't contained within any other interval. These
    functions are: iv_containers(), iv_identify_containers(),
    iv_identify_container(), and iv_locate_containers() (#20).

  - New iv_diff() for generating an iv from an existing vector that is
    in strictly increasing order (#17).

  - New iv_span() for computing a summary interval that encompasses the
    entire range of an existing iv (#49).

  - New Examples vignette that links out to Stack Overflow questions
    that were solved with ivs. View it locally with vignette("examples",
    package = "ivs").

  - vec_ptype() and vec_ptype_finalise() methods have been added for the
    iv class. This should result in slightly better performance when
    combining many ivs together (#27).

  - iv_locate_overlaps(), iv_locate_precedes(), iv_locate_follows(),
    iv_locate_between(), and iv_locate_includes() have all gained the
    relationship argument from the underlying engine,
    vctrs::vec_locate_matches() (#45).

  - iv_proxy() now returns the input unchanged if it doesn't implement
    an S3 method, rather than erroring. In combination with is_iv(),
    this provides a way to check if an input implements a proxy method
    and to implement different behaviors depending on the result.

  - In iv(), incomplete value propagation is now done before the start <
    end check, which fixes an inconsistent edge case (#36).

  - You can now combine an iv containing unspecified components with any
    other iv (#33).

  - The "iv" class name has been renamed to the more specific "ivs_iv"
    to better insulate it from potential collisions with classes from
    other packages (#25).

  - Improved on the call reported by errors thrown in ivs (#23).

  - Switched to using vec_run_sizes() and vec_chop(sizes =) internally,
    which improves performance in some cases (#50).

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