Regarding the new \w regexp escape in 5.11

kappa has asked for the wisdom of the Perl Monks concerning the following question:

Good day, fellow monks!

That's what we read in perl5110delta:

The key change here is that \d will no longer match every digit in the
+ unicode standard (there are thousands) nor will \w match every word 
+character in the standard, instead they will match precisely their PO
+SIX or Perl definition.
[download]

AFAIU, that means \w will no more match non-ascii letters in Unicode strings. I have just built a fresh 5.11 and I don't witness this change:

% perl -v # my system perl
This is perl, v5.10.0 built for i486-linux-gnu-thread-multi
% perl -E '"\x{432}" =~ /\w/ and say "matched"' # cyrillic letter v
matched
[download]

Now on to 5.11:

% ~/work/perl-5.11.0/perl -v
This is perl, v5.11.0 (*) built for i686-linux
...
% ~/work/perl-5.11.0/perl -I lib -CS -E '"\x{432}" =~ /\w/ and say "ma
+tched"'
matched
[download]

On one hand, this is quite a relief as it means I don't have a lot of very broken code on me. On the other hand, this contradicts my understanding of the declared change.

Can someone enlighten me?

--kap

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