maintenance_nag(): void|false

Source

function maintenance_nag() {	global $upgrading;	$nag = isset( $upgrading );	if ( ! $nag ) {	$failed = get_site_option( 'auto_core_update_failed' );	/* * If an update failed critically, we may have copied over version.php but not other files. * In that case, if the installation claims we're running the version we attempted, nag. * This is serious enough to err on the side of nagging. * * If we simply failed to update before we tried to copy any files, then assume things are * OK if they are now running the latest. * * This flag is cleared whenever a successful update occurs using Core_Upgrader. */	$comparison = ! empty( $failed['critical'] ) ? '>=' : '>';	if ( isset( $failed['attempted'] ) && version_compare( $failed['attempted'], wp_get_wp_version(), $comparison ) ) {	$nag = true;	}	}	if ( ! $nag ) {	return false;	}	if ( current_user_can( 'update_core' ) ) {	$msg = sprintf(	/* translators: %s: URL to WordPress Updates screen. */	__( 'An automated WordPress update has failed to complete - <a href="%s">please attempt the update again now</a>.' ),	'update-core.php'	);	} else {	$msg = __( 'An automated WordPress update has failed to complete! Please notify the site administrator.' );	}	wp_admin_notice(	$msg,	array(	'type' => 'warning',	'additional_classes' => array( 'update-nag', 'inline' ),	'paragraph_wrap' => false,	)	); } 

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