The XQuery Editor and integrated debugger allows XQuery 1.0 documents to be written validated, and debugged.
Liquid XML Studio currently supports 1 XQuery Engine.
Saxon XQuery 1.0 Engine
Source Saxonica Version Saxon HE 184.108.40.206 Supported Version XSLT 1.0 & 2.0 Execute Transform Yes Debug Transform Yes
The XQuery expression can be executed or debugged using the Saxon XQuery 1.0 engine.
When debugging the current line of execution is highlighted, break points can be set within the project, watch windows show user defined variables, the call stack can be viewed and variables local to the stack frame can be examined.