How has support for template systems (Template Toolkit) changed across recent Perl versions?

# Example of using Template Toolkit in Perl
use Template;

my $template_file = 'example.tt';
my $data = {
    title => 'Hello, World!',
    body  => 'This is a simple Template Toolkit example.',
};

my $tt = Template->new();

$tt->process($template_file, $data) || die $tt->error();