PCRE version supported by Notepad++
Does anybody know the exact version of PCRE supported by Notepad++'s built-in regular expression functionality? Using a program called RegexBuddy to create regular expressions, I see that it has many different versions of PCRE to choose from.
When I do a Google search all I can find is several mentions that PCRE was added in Notepad++ v6.0, but no mention of what version of PCRE.
AFAIK it uses the Boost 1.55.0 RegEx library. Its documentation references Perl 5.8.