=head1 NAME

kurila13delta - what is new for Perl Kurila 1.3

=head1 DESCRIPTION

This document describes differences between Perl Kurila 0.2 and Perl Kurila 1.3

=head1 Highlights In Perl Kurila 1.3

Perl Kurila 1.3 tries to reduce some ambiguities in Perl code, and to
simplify the perl internals. Some uncommon and error prone options
have been removed. More specific:

=over 4

=item *

Dereference of a string will always give an error, even when not "use strict 'refs'"

=item *

The <> operator no longer supports glob patterns, use glob() for that

=item *

Method resolution changed to default C3

=item *

"use strict 'subs'" is default on

=item *

Typed declarations (like C<my Animal $dog>) are no longer possible

=item *

Integrate bleadperl changes

=back

=head1 Core Enhancements

=head2 Dereference of a string will always give an error

Usage of a string to lookup a symbol, like ${"$class\::VERSION"} will always give an error,
regardless of "use strict 'refs'".
You can use C<Symbol::fetch_glob> to do a symbol lookup.
Symbol::fetch_glob returns a reference to a glob, thus to use the glob you need to explicitly dereference it.
For example to get the above ${"$class\::VERSION"} you need C<${*{Symbol::fetch_glob("$class\::VERSION")}}>
Symbol::fetch_glob is defined in the Perl core and does not require a C<use Symbol>.

=head2 The <> operator no longer supports glob patterns.

The <'pattern'> glob operator, has been removed in favour of the "glob"
function.  If you try to use <> with an pattern you get an "Usage of
the <> operator with a glob pattern, use the 'glob' function instead"
compile error.

=head2 Default method resolution changed to C3

The default method resolution is changed to C3, see L<mro> for more information about
the C3 method resolution.

=head2 "use strict 'subs'" is default on

By default "use strict 'subs'" is active. See L<strict> for what this means.

=head2 Typed declarations are no longer possible

Typed declarations like "my Animal::Dog $dog" are no longer allowed.
You get a "Expected variable after declarator" compile error if you try to use it.

=head2 Internal bleadperl changes

bleadperl changes up to 31540 are integrated

=back

=head1 KNOWN BUGS

=head2 Documentation

Documentation has not been updated for many of the changes for kurila.

=head2 Limited platform support

Perl Kurila has only been tested/build for x86_64-linux-gnu-thread-multi platform.

=head1 SEE ALSO

The F<INSTALL> file for how to build Perl Kurila.

The F<README> file for general stuff.

The F<Artistic> and F<Copying> files for copyright information.

=head1 HISTORY

Written by Gerard Goossen <F<gerard@tty.nl>>.

=cut
