=head1 VERSION
-This document describes Mouse version 0.40_06
+This document describes Mouse version 0.50_09
=head1 DESCRIPTION
-Mouse has an optional XS implementation. This is automatically built
-and used if available.
+Mouse has an optional XS implementation, which is automatically built
+and used if available. According to benchmarks, this is about 2 times
+faster than Mouse::PurePerl.
=head2 INSTALL
+The XS implementation are selected by default, but you can force it by
+passing the C<--xs> option to F<Makefile.PL>.
+
+ perl Makefile.PL --xs
+
If you do not want to build the XS implementation, you can pass the C<--pp>
option to F<Makefile.PL>.
It can be used to enable the use of Mouse::PurePerl.
+=head1 DEPENDENCIES
+
+The XS implementation requires Perl 5.8.1 or later, and a C compiler.
+
=head1 SEE ALSO
+L<Mouse>
+
L<Mouse::PurePerl>
=cut