1 files changed, 24 insertions, 1 deletions
diff --git a/pod/perltrap.pod b/pod/perltrap.pod
index fa68a753c2..cfe964270c 100644
--- a/pod/perltrap.pod
+++ b/pod/perltrap.pod
@@ -191,7 +191,8 @@ in Perl 5 is the backslash, which creates a reference.
 
 =item *
 
-C<ARGV> must be capitalized.
+C<ARGV> must be capitalized.  C<$ARGV[0]> is C's C<argv[1]>, and C<argv[0]>
+ends up in C<$0>.
 
 =item *
 
@@ -381,6 +382,28 @@ Because if that were to work, then this couldn't:
 
 =item *
 
+The precedence of assignment operators is now the same as the precedence
+of assignment.  Perl 4 mistakenly gave them the precedence of the associated
+operator.  So you now must parenthesize them in expressions like
+
+    /foo/ ? ($a += 2) : ($a -= 2);
+
+Otherwise
+
+    /foo/ ? $a += 2 : $a -= 2;
+
+would be erroneously parsed as
+
+    (/foo/ ? $a += 2 : $a) -= 2;
+
+On the other hand,
+
+    $a += /foo/ ? 1 : 2;
+
+now works as a C programmer would expect.
+
+=item *
+
 C<open FOO || die> is now incorrect.  You need parens around the filehandle.
 While temporarily supported, using such a construct will 
 generate a non-fatal (but non-suppressible) warning.