released 5.3

improve case-insensitive matching to support the Unicode upper/lower sets of letters

released 5.2.2

released 5.2.1

fix a regression issue with non-SIMD-optimized search with `Matcher::find()`

released 5.2

released 5.1.1

fix a minor issue with case-insentitive matching when regex patterns are specified in certain ways in combination with "string-like" patterns such that one ore more alternating sub-patterns overlap from the start.

released 5.1

- fix #217 appease warnings
- fix #216
- fix a bug in case-insensitive Unicode negated character class matching too much

released 5.0.1

fix #214

released 5.0

faster SIMD regex search methods; improved anchor and word boundary matching speed and support; new `std::string_view strview()` matcher method.

released 4.5

minor improvements

released 4.4.0