David Tolpin has released RNV 1.5.3, an open source Relax NG Compact Syntax validator written in ANSI C. Version 1.5.3 adds support for extension datatype libraries and external system entities. RNV is published under a BSD license.
Version 0.94 of Chiba, an open source, web-based implementation of XForms based on servlets and XSLT, has been released. Chiba enables XForms to be used in current browsers without plugins or special requirements on the client-side. Version 0.94 "adds some detail functionality and some new Connectors and well as a bunch of unit-tests." Chiba is published under the artistic license.