XML SemanticDiff works pretty good except I discovered that a child element can be reported as new rogue element in new file if not in same location as old file. Example if old file contains:

<classes name="Zanoply::AccessLogic">
    <all_members name="accessLogic"/>
    <all_members name="DBUS"/>
</classes>
[download]

And new file contains:

<classes name="Zanoply::AccessLogic">
    <all_members name="accessLogic"/>
    <all_members name="SPR"/>
    <all_members name="DBUS"/>
</classes>
[download]

Then DBUS is reported both as a change in attribute value and new rogue element.