* NEW: \O (true anychar)
* NEW: if-then-else syntax (?(...)...\|...)
* NEW: Backreference validity checker (*original)
-* NEW: Absent repeater (?~absent) == (?~|absent|\O*)
-* NEW: Absent group (?~|absent|expr) (* original)
-* NEW: Absent range cutter (?~|absent) (* original)
+* NEW: Absent repeater (?~absent)
+* NEW: Absent group (?~|absent|expr) (*original)
+* NEW: Absent range cutter (?~|absent) (*original)
New feature of version 6.4.0