Index: lib/Comms/src/format.cpp
===================================================================
diff -u -ra5781739bcbe58c754aff8861561495624bc5b67 -raaebfee335c74b0250864a6dce0555f866adadea
--- lib/Comms/src/format.cpp	(.../format.cpp)	(revision a5781739bcbe58c754aff8861561495624bc5b67)
+++ lib/Comms/src/format.cpp	(.../format.cpp)	(revision aaebfee335c74b0250864a6dce0555f866adadea)
@@ -100,7 +100,11 @@
     case QMetaType::QVariantList:       // list
     {
         QVariantList list = vData.toList();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
         for(const auto &item: std::as_const(list)) {
+#else
+        for(const auto &item: qAsConst(list)) {
+#endif
             mData += fromVariant(item);
         }
         return mData;