apply_filters( 'old_slug_redirect_url', string $link ) Filters the old slug redirect URL. ContentsParameters Source Related Used By Changelog User Contributed Notes Parameters $link (string) The redirect URL. Top ↑Source File: wp-includes/query.php View on Trac Top ↑Related Top ↑Used By Used By Used By Description wp-includes/query.php: wp_old_slug_redirect() Redirect old slugs to the correct permalink. Top ↑Changelog Changelog Version Description 4.4.0 Introduced. Top ↑User Contributed Notes You must log in before being able to contribute a note or feedback.