--- description: REST and GraphQL API documentation on the Revisions collection in Directus. readTime: 2 min read pageClass: page-reference --- # Revisions > Revisions are individual changes to items made. Directus keeps track of changes made, so you're able to revert to a > previous state at will. [Learn more about Revisions](/user-guide/overview/glossary#revisions). ## The Revision Object `id` **integer**\ Primary key of the revision. `activity` **many-to-one**\ Related activity record. Many-to-one to [activity](/reference/system/activity). `collection` **string**\ Collection in which this revision happened. `item` **string**\ Primary key of the item that was changed. `data` **object**\ Snapshot of the top-level item data. `delta` **object**\ Snapshot of the changes made in this revision. `parent` **many-to-one**\ Parent revision that triggered this revision. Many-to-one to revisions (recursive). ```json { "id": 368, "activity": 438, "collection": "articles", "item": "1", "data": { "title": "Hello World" }, "delta": { "title": "Hello from the Docs!" }, "parent": null } ``` ## List revisions List all revisions that exist in Directus. ::: tip Permissions The data returned in this endpoint will be filtered based on the user's permissions. For example, revisions that apply to a collection that the current user doesn't have access to are stripped out. ::: ### Request #### Query Parameters Supports all [global query parameters](/reference/query). ### Response An array of up to [limit](/reference/query#limit) [revision objects](#the-revision-object). If no items are available, data will be an empty array. ### Examples ## Retrieve a revision List an existing revision by primary key. ### Request #### Query Parameters Supports all [global query parameters](/reference/query). ### Response Returns the requested [revision object](#the-revision-object). ### Example