Michael Sweet has released Mini-XML 2.3, an open source (LGPL) XML parser for C.
Leigh Klotz has released DeXSS 1.0, an open source SAX parser based on TagSoup that removes all JavaScript from an HTML document.
Gerald Schmidt has released XML Copy Editor 1.0.9.4, a free-as-in-speech (GPL) XML editor for Windows and Linux. Features include DTD/XML Schema/RELAX NG validation, XSLT, XPath, pretty-printing, syntax highlighting, tag folding, tag completion, spell and style check, XHTML, XSL, DocBook and TEI, and Microsoft Word import and export. This release adds a Chinese localization and fixes bugs.
Syntext has released Serna 3.3. a $268 payware XSL-based WYSIWYG XML Document Editor for Mac OS X, Windows, and Unix. Features include on-the-fly XSL-driven XML rendering and transformation, on-the-fly XML Schema validation, XInclude, and spell checking. Version 3.3 fixes bugs and improves performance.