at the command line. C<prove> is part of Test::Harness, which users of earlier
Perl versions can install from CPAN.
+The perl debugger now supports a C<save> command, to save the current
+history to a file, and an C<i> command, which prints the inheritance tree
+of its argument (if the C<Class::ISA> module is installed.)
+
=head1 Documentation
The documentation has been revised in places to produce more standard manpages.
The long-existing feature of C</(?{...})/> regexps setting C<$_> and pos()
is now documented.
-The perl debugger now supports a C<save> command, to save the current
-history to a file, and an C<i> command, which prints the inheritance tree
-of its argument (if the C<Class::ISA> module is installed.)
-
=head1 Performance Enhancements
+The operations involving case mapping on UTF-8 strings (uc(), lc(),
+C<//i>, etc.) have been greatly speeded up.
+
=head1 Installation and Configuration Improvements
=head1 Selected Bug Fixes
=head1 New or Changed Diagnostics
+A new deprecation warning, I<Deprecated use of my() in false conditional>,
+has been added, to warn against the use of the dubious and deprecated
+construct
+
+ my $x if 0;
+
+See L<perldiag>.
+
The fatal error "DESTROY created new reference to dead object" is now
documented in L<perldiag>.