Altova Inc. announced the availability of XMLSPY 5 Release 4. Altova has enhanced numerous features in its XML Development Environment. XMLSPY 5 and AUTHENTIC 5 now support Delta-V, an extension to the WebDAV protocol which enables check-in/check-out functionality when used in conjunction with a WebDAV server. The Stylesheet Designer now includes support for direct usage of global templates, support for conditional statements in Stylesheet Designer, as well as support for PDF Header/Footer/Cover pages. The XMLSPY code generator now supports output code which uses Xerces (a popular XML parser), Standard Template Library (STL), and additional support of XML Schema simple types in Java/C# code generation. XMLSPY 5 Release 4 is available immediately for free trial download. Existing XMLSPY 5 customers who have purchased a support and maintenance plan are eligible for a free upgrade. Altova’s AUTHENTIC 5 is available under a free software license.