2. The method of claim 1 , wherein the reference point comprises a timestamp to indicate previous access to the prior document version; and wherein the prior document version corresponds to a document version available for access at a time indicated by the timestamp.
1. A method, comprising: identifying, using a processing device, a reference point associated with a prior document version, the reference point referencing a prior version of a document stored in a parallel cache that stores multiple versions of the document; comparing, using the processing device, at least one prior document element included in the prior document version with at least one current document element included in a current document version; generating, using the processing device, an updated current document version by updating the current document version with at least one of a visual representation or an auditory representation based at least in part on differences between the at least one prior document element and the at least one current document element; and presenting, using the processing device the updated current document version for display; wherein the at least one prior document element included in the prior document version is stored as a first document object model (DOM) element tree; and wherein at least one current document element included in a current document version is stored as a second DOM element tree.