When updating your website URLs, it is important to implement proper 301 redirects from old URLs to the new ones. This helps both users and search engines navigate seamlessly to the updated content. If redirecting is not possible, ensure that the old URLs return a 404 (Not Found) or 410 (Gone) status code to clearly indicate that the content is no longer available. This approach aids Google in understanding the changes and updating the search index accordingly. Additionally, submitting urgent removals through Search Console can expedite the process for pages you want removed quickly. Finally, review and improve your page titles and meta descriptions to reflect the new content accurately and enhance recognition in search results. [Google]