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Added

• Support for relative backreferences using \k<-1> (-1 references the previous group) (#121)
• Add try_replacen to Regex which returns a Result instead of panicking when matching errors (#130)

Changed

• Switch from regex crate to regex-automata and regex-syntax (lower level APIs) to simplify internals (#121)
• Allow escaping some letters in character classes, e.g. [\A] used to error but now matches the same as [A] (for compatibility with Oniguruma)
• MSRV (minimum supported Rust version) is now 1.66.1 (from 1.61.0)

Fixed

• Fix index out of bounds panic when parsing unclosed (?( (#125)

Added

• Support for no_std (the std feature is enabled by default but can be disabled if desired) (#111)
• TryFrom &str and String impl for Regex (#115)

Changed

• Error and its components are now Clone (#116)
• MSRV (minimum supported Rust version) is now 1.61.0 (from 1.42.0)

Added

• Support for conditionals: using a regex like (?<test>a)?b(?(test)c|d) will try to match c after b if a matched in the capture group named test, otherwise d after b if a wasn't captured into the test group.

Changed

• Updated parse errors to show the position they occurred at.

Fixed

• Fix panic when backref is used within referenced group itself and group end index is not known yet (#103)

Added

• Support for \G (anchor to end of previous match): Using a regex like \G\w will match each letter of foo in foo bar but nothing else.

Added

• Support for \K (keep out): Using a regex like @\K\w+ will match things like @foo but the resulting match text will only include foo, keeping out the @.