Integrate with perlio. (No changes, but that's okay.)

[p5sagit/p5-mst-13.2.git] / pod / perldelta.pod

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 7c1ddd9..9ac2964 100644 (file)
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -71,7 +71,8 @@ The C<my EXPR : ATTRS> syntax now applies variable attributes at
 run-time.  (Subroutine and C<our> variables still get attributes applied
 at compile-time.)  See L<attributes> for additional details.  In particular,
 however, this allows variable attributes to be useful for C<tie> interfaces,
-which was a deficiency of earlier releaes.
+which was a deficiency of earlier releases.  Note that the new semantics
+doesn't work with the Attribute::Handlers module (as of version 0.76).
 
 =head2 Socket Extension Dynamic in VMS
 
@@ -299,11 +300,19 @@ the child process.
 
 =back
 
-=head2 Signals Are Now Safe
+=head2 Safe Signals
 
 Perl used to be fragile in that signals arriving at inopportune moments
 could corrupt Perl's internal state.  Now Perl postpones handling of
-signals until it's safe.
+signals until it's safe (between opcodes).
+
+This change may have surprising side effects because signals no more
+interrupt Perl instantly.  Perl will now first finish whatever it was
+doing, like finishing an internal operation (like sort()) or an
+external operation (like an I/O operation), and only then look at any
+arrived signals (and before starting the next operation).  No more corrupt
+internal state since the current operation is always finished first,
+but the signal may take more time to get heard.
 
 =head2 Unicode Overhaul
 
@@ -2546,7 +2555,7 @@ pP are testing for Unicode code points, not knowing about EBCDIC.
 The compiler suite is slowly getting better but it continues to be
 highly experimental.  Use in production environments is discouraged.
 
-=head2 The Long Double Support is Still Experimental
+=head2 The Long Double Support Is Still Experimental
 
 The ability to configure Perl's numbers to use "long doubles",
 floating point numbers of hopefully better accuracy, is still
@@ -2558,6 +2567,29 @@ by slowdown in computations (more bits to move around, and the
 operations are more likely to be executed by less optimised
 libraries).
 
+=head2 Seen In Perl 5.7 But Gone Now
+
+Some modules were seen in the Perl 5.7 development releases
+but are not present in 5.8.0.
+
+=over 4
+
+=item *
+
+C<Attribute::Handlers> was removed because the implementation of C<my>
+variable attributes changed so much that the Attribute::Handlers will
+require a major rewrite.  (This means that you can't use
+Attribute::Handler 0.76 with Perl 5.8.0.)
+
+=item *
+
+C<Time::Piece> (previously known as C<Time::Object>) was removed
+because it was felt that it didn't have enough value in it to be a
+core module.  It is still a useful module, though, and is available
+from the CPAN.
+
+=back
+
 =head1 Reporting Bugs
 
 If you find what you think is a bug, you might check the articles