Identifying changes to copied source to facilitate sharing of the changes, in one aspect, includes comparing elements of a document to other documents in a repository to classify an element of the document as being derived from a source document element of a source document in the repository. A user interface presents indications of all elements of the document classified as being a derived. The user interface also presents an indication of the source document from which the element of the document is derived. A connected graph representing a relationship between the document and the source document is generated and stored. Responsive to determining an update to the source document element, an action is performed to facilitate updating the element of the document based on the update to the source document element.