Syntext has posted the second beta of Serna, an XSL-based WYSIWYG XML Document Editor for Windows and Linux. Registration is required for the beta. Pricing has not yet been announced.
Sam Tregar has released XML::Validator::Schema 1.03, a Perl module that validates XML documents against a partial subset of the W3C XML schema language. It is implemented as a SAX filter on top of XML::SAX.
Toni Uusitalo has posted Parsifal 0.7.2, a minimal, non-validating XML parser written in ANSI C. The API is based on SAX2. This release makes various internal changes that may improve the speed somewhat. Parsifal is in the public domain.
Dave Malcolm has posted Conglomerate 0.7.4, an open source GUI XML editor for Linux written in C, and based on libxml2 and the GTk+ and Gnome libraries. Conglomerate is published under the GPL.
IBM has updated their XML Parser for Java to version 4.2.2. This release is based on Xerces-J 2.4.0 and supports the W3C XML Schema Recommendation 1.0, SAX 1.0 and 2.0, DOM Level 1, DOM Level 2, and some experimental features of DOM Level 3 Core and Load/Save Working Drafts, JAXP 1.2, and XNI. 4.2.2 is a bug fix release.