NEWS.md
In DavisVaughan/ivs: Interval Vectors

ivs (development version)

ivs 0.2.0

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.