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diff --git a/pod/perl571delta.pod b/pod/perl571delta.pod
index 53e498e..8047871 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 *
+=head2 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".
@@ -150,8 +152,8 @@ Perl now tries internally to use integer values in numeric conversions
 and basic arithmetics (+ - * /) if the arguments are integers, and
 tries also to keep the results stored internally as integers.
 This change leads into often slightly faster and always less lossy
-arithmetics (previously Perl always preferred floating point numbers
-in its math)
+arithmetics. (Previously Perl always preferred floating point numbers
+in its math.)
 
 =item *
 
@@ -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
@@ -237,7 +244,7 @@ has been added.
 
     print $digest, "\n"; # 01d19d9d2045e005c3f1b80e8b164de1
 
-NOTE: the MD5 backward compatibility module is purposefully not
+NOTE: the MD5 backward compatibility module is deliberately not
 included since its use is discouraged.
 
 See L<Digest::MD5> for more information.
@@ -413,7 +420,7 @@ parsing algorithms.  See L<Text::Balanced> for more information.
 =item *
 
 Tie::RefHash::Nestable, by Edward Avis, allows storing hash references
-(unlike the standard Tie::Refhash)  The module is contained within
+(unlike the standard Tie::RefHash)  The module is contained within
 Tie::RefHash.
 
 =item *
@@ -792,7 +799,7 @@ reverse order.  This has been reversed to be in the right order.
 
 =item *
 
-The order of DESTROYS has been made more predictable.
+The order of DESTROYs has been made more predictable.
 
 =item *
 
@@ -915,7 +922,7 @@ a no-op) and the latter replaced with dSP.
 
 =item *
 
-Perl now uses system malloc instead of Perl malloc in all 64-bit
+Perl now uses system malloc instead of Perl malloc on all 64-bit
 platforms, and even in some not-always-64-bit platforms like AIX,
 IRIX, and Solaris.  This change breaks backward compatibility but
 Perl's malloc has problems with large address spaces and also the
@@ -924,6 +931,13 @@ machines (Perl's malloc is mostly tuned for space).
 
 =back
 
+=head1 New Tests
+
+Many new tests have been added.  The most notable is probably the
+lib/1_compile: it is very notable because running it takes quite a
+long time -- it test compiles all the Perl modules in the distribution.
+Please be patient.
+
 =head1 Known Problems
 
 Note that unlike other sections in this document (which describe
@@ -959,7 +973,7 @@ subtest 9 failed.
 
 =head2 lib/b test 19
 
-The test fails in various platforms (PA64 and IA64 are known), but the
+The test fails on various platforms (PA64 and IA64 are known), but the
 exact cause is still being investigated.
 
 =head2 Linux With Sfio Fails op/misc Test 48
@@ -968,12 +982,12 @@ No known fix.
 
 =head2 sigaction test 13 in VMS
 
-The test is known to fail, whether it's because of VMS of because
-of faulty test, is not known.
+The test is known to fail; whether it's because of VMS of because
+of faulty test is not known.
 
 =head2 sprintf tests 129 and 130
 
-The op/sprintf tests 129 and 130 are known to fail in some platforms.
+The op/sprintf tests 129 and 130 are known to fail on some platforms.
 Examples include any platform using sfio, and Compaq/Tandem's NonStop-UX.
 The failing platforms do not comply with the ANSI C Standard, line
 19ff on page 134 of ANSI X3.159 1989 to be exact.  (They produce