DDOC-1108: Add changelog entry for AI agent overrides (#401)

* changelog entry for default agent

* Add changelog entry for AI agents

content/2024/07-25-box-ai-overrides.md

@@ -0,0 +1,26 @@
+---
+applied_at: '2024-07-25'
+applies_to:
+  - guides
+is_impactful: true
+is_new_feature: true
+release_source_url: ''
+collapse: true
+---
+
+# Fetch and override default AI configuration
+
+Thanks to the [`GET /2.0/ai_agent_default`][1] endpoint you can now fetch the default configuration for AI services. 
+
+<!-- more -->
+
+Once you get the configuration details, you can override them using the `ai_agent` parameter available in the [`POST /2.0/ai/ask`][2] and [`POST /2.0/ai/text_gen`][3] requests.
+
+## Where to get support
+
+Should you have any issues or need further guidance, please post a request to our [developer forum][4] for any help needed.
+
+[1]: e://get_ai_agent_default
+[2]: e://post_ai_ask#param_ai_agent
+[3]: e://post_ai_text_gen#param_ai_agent
+[4]: https://forum.box.com/