When you update or change URLs on your website, it is important to implement proper 301 redirects from the old URLs to the new ones. This ensures that both users and search engines are directed to the correct pages, preserving link equity and avoiding confusion. If redirecting is not possible, configure the old URLs to return a 404 (Not Found) or 410 (Gone) status code to clearly indicate that the content is no longer available. Additionally, you can request urgent removals of outdated URLs through Google Search Console. Properly managing URL changes helps Google update its index efficiently and maintains a good user experience. [Google]