When updating an entry via the Content Management API it is now possible to send JSON patch updates via the PATCH resource.

JSON patch is a web standard format for updating a JSON document by sending a description of the changes, rather than the entire updated document. This allows developers to make substantially more granular requests for entry changesets. You may find this useful if you have a write-intensive workflows, especially when working with content-heavy documents, or where request size is a concern.

This does not affect the PUT resource and entry updates made using that resource will continue working the same as before.