// PUT admin/posts/5b7ada404f87d200b5b1f9c8/
{
    "posts": [
        {
            "title": "My new title",
            "updated_at": "2022-06-05T20:52:37.000Z"
        }
    ]
}

PUT /admin/posts/{id}/
Required fields: updated_at All writable fields of a post can be updated via the edit endpoint. The updated_at field is required as it is used to handle collision detection and ensure you’re not overwriting more recent updates. It is recommended to perform a GET request to fetch the latest data before updating a post. Below is a minimal example for updating the title of a post: 
// PUT admin/posts/5b7ada404f87d200b5b1f9c8/
{
    "posts": [
        {
            "title": "My new title",
            "updated_at": "2022-06-05T20:52:37.000Z"
        }
    ]
}

​
Tags and Authors

Tag and author relations will be replaced, not merged. Again, the recommendation is to always fetch the latest version of a post, make any amends to this such as adding another tag to the tags array, and then send the amended data via the edit endpoint.