And of course, you can simply check the
API for JDK 1.5's java.util.regex package. New stuff is marked off as "Since 1.5" (if you look on the approriate page). You can find miscellaneous methods like quote() in
Pattern and asResult(), usePattern(), quoteReplacement(), region(), regionStart(), regionEnd(), hitStart(), hitEnd(), and requireEnd() in Matcher. And there's the whole new interface MatchResult. None of these are really major, IMO, but they're convenient.