Our web database automatically updates without manual intervention. To make sure your new pages are updated in our next web crawl, please configure an "HTTP 301" permanent redirect on the old pages to point to the newer ones.

The HTTP 301 permanent redirect makes sure that users are redirected to the newer content and that the new pages are picked up during our next web crawl. Your listing in the Yahoo! Search index continues to reflect the older content until it is updated in the next crawl.