---
title: "Changeset"
description: "Define policy conditions using changeset IDs with support for regex to manage data node and association access. (Gitana 4.0)"
product: "Gitana"
version: "4.0"
url: "/documentation/gitana/4.0/engine/access-policies/conditions/changeset"
---

# Changeset

The `changeset` condition allows you to constrain a policy statement so that it applies to nodes and/or associations that are written onto a matching changeset. The changeset can be matched using its ID (`_doc`).

This condition supports regular expressions, allowing you to focus in on a single value or wildcard expressions for matches.

## Configuration

To match a changeset by ID:

```
{
    "type": "changeset",
    "config": {
        "id": "{value regex}"
    }
}
```

## Samples

This policy document grants the Consumer role to a specific piece of content if it resides within the changeset with ID `46ba5e0d79b83aac97ec`.

```
{
    "title": "My Sample Policy",
    "statements": [{
        "action": "grant",
        "roles": ["consumer"],
        "conditions": [{
            "type": "changeset",
            "config": {
                "id": "46ba5e0d79b83aac97ec"
            }
        }]
    }]
}
```