---
title: View changes in the change log
description: When Autonomous Engineer completes a turn, it updates the change log.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/application-development/ae-ccl-preview-tab.html
release: brazil
topic_type: concept
last_updated: "2026-09-09"
reading_time_minutes: 1
keywords: [ServiceNow Studio, changlog, Autonomous Engineer]
audience: programmer
breadcrumb: [Use, Autonomous Engineer, Build, AI Workflow Factory Prime, Agentic app development, Building applications]
---

# View changes in the change log

When Autonomous Engineer completes a turn, it updates the change log.

To review what a background agent worker did during execution, open the work item and select the **Log** tab. The **Log** tab shows the chat history of the background agent, including the messages it sent and received during the work item build.

For information on how the Build Agent change log works, see [Checkpoints and conversation change log](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/application-development/ba-conversational-change-log.md).

**Parent Topic:**[Using Autonomous Engineer](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/application-development/ae-using-autonomous-engineer.md)