Introduce perl572delta, update Todo, add the missing

mention about signal safety since 5.7.1 (though this
requires verification and more details.)

p4raw-id: //depot/perl@9989

1 files changed, 11 insertions, 4 deletions

diff --git a/pod/perl571delta.pod b/pod/perl571delta.pod
index 502387e9ec..9a069beebb 100644
--- a/pod/perl571delta.pod
+++ b/pod/perl571delta.pod
@@ -8,7 +8,7 @@ This document describes differences between the 5.7.0 release and the
 5.7.1 release.  
 
 (To view the differences between the 5.6.0 release and the 5.7.0
-release, see L<perl570delta>).
+release, see L<perl570delta>.)
 
 =head1 Security Vulnerability Closed
 
@@ -62,13 +62,15 @@ natively, ASCII or EBCDIC, unless GLOB_ALPHASORT is specified.)
 
 =head1 Core Enhancements
 
-=over 4
-
-=item *
+=head1 AUTOLOAD Is Now Lvaluable
 
 AUTOLOAD is now lvaluable, meaning that you can add the :lvalue attribute
 to AUTOLOAD subroutines and you can assign to the AUTOLOAD return value.
 
+=head2 PerlIO is Now The Default
+
+=over 4
+
 =item *
 
 IO is now by default done via PerlIO rather than system's "stdio".
@@ -192,6 +194,11 @@ C<\s> doesn't.)
 
 =back
 
+=head2 Signals Are Now Safe
+
+Perl used to be fragile in that signals arriving at inopportune moments
+could corrupt Perl's internal state.
+
 =head1 Modules and Pragmata
 
 =head2 New Modules