WordPress at a glance
function is not described

dismissed_updates() WP 2.7.0

No Hooks.

Return

Nothing (null).

Usage

dismissed_updates();

Code of dismissed updates: wp-admin/update-core.php VER 5.0.3

<?php
function dismissed_updates() {
	$dismissed = get_core_updates( array( 'dismissed' => true, 'available' => false ) );
	if ( $dismissed ) {

		$show_text = esc_js(__('Show hidden updates'));
		$hide_text = esc_js(__('Hide hidden updates'));
	?>
	<script type="text/javascript">

		jQuery(function($) {
			$('dismissed-updates').show();
			$('#show-dismissed').toggle(function(){$(this).text('<?php echo $hide_text; ?>');}, function() {$(this).text('<?php echo $show_text; ?>')});
			$('#show-dismissed').click(function() { $('#dismissed-updates').toggle('slow');});
		});
	</script>
	<?php
		echo '<p class="hide-if-no-js"><a id="show-dismissed" href="#">'.__('Show hidden updates').'</a></p>';
		echo '<ul id="dismissed-updates" class="core-updates dismissed">';
		foreach ( (array) $dismissed as $update) {
			echo '<li>';
			list_core_update( $update );
			echo '</li>';
		}
		echo '</ul>';
	}
}