---
title: Version History
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > Datadog Security > Cloud SIEM > Detect and Monitor > Version History
---

# Version History

## Overview{% #overview %}

{% image
   source="https://datadog-docs.imgix.net/images/security/security_monitoring/detection_rules/rule_version_history_20250207.e0ec9df2544e57d756bfc5902b8671df.png?auto=format"
   alt="The version history for a GitHub OAuth access token compromise showing" /%}

Use Rule Version History to:

- See past versions of a detection rule and understand the changes over time.
- See who made the changes for improved collaboration.
- Compare versions with diffs to analyze the modifications and impact of the changes.

## See version history of a rule{% #see-version-history-of-a-rule %}

To see the version history of a rule:

1. Navigate to [Detection Rules](https://app.datadoghq.com/security/siem/rules).
1. Click on the rule you are interested in.
1. In the rule editor, click **Version History** to see past changes.
1. Click a specific version to see what changes were made.
1. Click **Open Version Comparison** to see what changed between versions.
1. Select the two versions you want to compare.
   - Data highlighted in red indicates data that was modified or removed.
   - Data highlighted in green indicates data that was added.
1. Click **Unified** if you want to see the comparison in the same panel.

## Further reading{% #further-reading %}

- [Create a custom rule](https://docs.datadoghq.com/security/cloud_siem/detect_and_monitor/custom_detection_rules/)