Update whats-new.md

delete analyze response

Author: vkurpad

articles/ai-services/document-intelligence/whats-new.md

@@ -76,6 +76,9 @@ For more information, *see* client libraries for the following supported program
 *  [🆕 US Tax model](prebuilt/tax-document.md)
    *  New prebuilt tax models added for 1095A, 1095C, 1099SSA, and W4.
 
+* [Delete analyze response](https://learn.microsoft.com/rest/api/aiservices/document-models/delete-analyze-result?view=rest-aiservices-v4.0%20(2024-11-30)&tabs=HTTP)
+  * Analyze response is stored for 24 hours from when the operation completes for retrieval. For scenarios where you want to delete the response sooner, use the delete analyze response API to detele the response.  
+
 * The v4.0 API includes cumulative updates from preview releases as listed:
   * [August 2024](#august-2024)
   * [May 2024](#may-2024)