Howard Katz has posted version 0.69 of XQEngine, a free-as-in-speech (GPL) full-text search engine for XML based on XQuery. XML Query Engine is a 300K embeddable component written in Java. Accordsing to Katz, "It's not a standalone application and requires a reasonable amount of Java programming skill to use. It has a straightforward programming interface that makes that fairly easy to do. It should work well as a personal productivity tool on a single desktop, as part of a CD-based application, or on a server with low to moderate traffic." Collections to be searched are limited to 2.1 billion documents, each of which can contain up to 8.4 million nodes.