Update 2025-09-17-update-preview-url-setting.mdx

Author: dinasaur404

src/content/changelog/workers/2025-09-17-update-preview-url-setting.mdx

@@ -4,7 +4,7 @@ description: We performed a one-time update to disable preview URLs on Workers w
 date: 2025-09-17
 ---
 
-To prevent the accidental exposure of applications, we've updated how Worker preview URLs (<PREVIEW>-<WORKER_NAME>.<SUBDOMAIN>.workers.dev) are handled.
+To prevent the accidental exposure of applications, we've updated how Worker preview URLs (<PREVIEW>-<WORKER_NAME>.<SUBDOMAIN>.workers.dev) are handled. We made this change to ensure preview URLs are only active when intentionally configured, improving the default security posture of your Workers
 
 **What has changed:**
 - New Default Behavior: If a Worker's `workers.dev` route is disabled and its preview URL is not explicitly configured, the preview URL will now default to disabled. However, you can still explicitly enable the preview URL regardless of your `workers.dev` enablement status by doing `preview_urls = true`