Update umbraco-cloud/release-notes/overview-2025/2025-09-03-releasenotes.md

Co-authored-by: Mikulas Tomanka <[email protected]>

Author: hemraker

umbraco-cloud/release-notes/overview-2025/2025-09-03-releasenotes.md

@@ -3,7 +3,7 @@
 ## Key Takeaways
 
 * **Hostname Pre-Validation** – Add and validate hostnames before switching DNS, enabling zero-downtime migrations and support for on-premise proxies.
-* **Managed Challenges** – Protect projects from malicious traffic surges with automated verification.
+* **Managed Challenges** – Protect projects from malicious traffic surges with automated verification based on request geography or attack likelihood.
 * **Custom Identity Provider (Public Beta)** – Use your existing identity provider for Cloud Portal access, permissions, and user management.
 
 ## Hostname Pre-Validation