Embodiments are directed to a computer implemented method of processing multiple versions of documents. The method includes importing a new version of a document. The method further includes determining that a section of the document can be imported from a previous version of the document. The method further includes creating a table of contents entry for the section and indexing the new version of the document. Another embodiment can be directed to a computer implemented method of implementing searches across multiple versions of a document. After receiving a search query, the search query can be performed across multiple versions of the document. Duplicates can be analyzed and removed. If there are no results from a target version, search results from a prior version of a document are analyzed to find a result from the target version.