diff --git a/swagger/sdrangel/code/html2/index.html b/swagger/sdrangel/code/html2/index.html
index f193d5cd2..fdd59c023 100644
--- a/swagger/sdrangel/code/html2/index.html
+++ b/swagger/sdrangel/code/html2/index.html
@@ -51634,7 +51634,7 @@ except ApiException as e:
           </div>
           <div id="generator">
             <div class="content">
-              Generated 2021-12-24T20:37:17.750+01:00
+              Generated 2021-12-27T21:57:14.290+01:00
             </div>
           </div>
       </div>
diff --git a/swagger/sdrangel/code/qt5/client/SWGDeviceSetApi.cpp b/swagger/sdrangel/code/qt5/client/SWGDeviceSetApi.cpp
index c66b69bce..65fca7131 100644
--- a/swagger/sdrangel/code/qt5/client/SWGDeviceSetApi.cpp
+++ b/swagger/sdrangel/code/qt5/client/SWGDeviceSetApi.cpp
@@ -45,7 +45,7 @@ SWGDeviceSetApi::devicesetChannelActionsPost(qint32 device_set_index, qint32 cha
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -158,7 +158,7 @@ SWGDeviceSetApi::devicesetChannelPost(qint32 device_set_index, SWGChannelSetting
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -329,7 +329,7 @@ SWGDeviceSetApi::devicesetChannelSettingsPatch(qint32 device_set_index, qint32 c
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -388,7 +388,7 @@ SWGDeviceSetApi::devicesetChannelSettingsPut(qint32 device_set_index, qint32 cha
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -499,7 +499,7 @@ SWGDeviceSetApi::devicesetDeviceActionsPost(qint32 device_set_index, SWGDeviceAc
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -556,7 +556,7 @@ SWGDeviceSetApi::devicesetDevicePut(qint32 device_set_index, SWGDeviceListItem&
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -667,7 +667,7 @@ SWGDeviceSetApi::devicesetDeviceRunDelete(qint32 device_set_index, SWGDeviceSett
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -778,7 +778,7 @@ SWGDeviceSetApi::devicesetDeviceRunPost(qint32 device_set_index, SWGDeviceSettin
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -889,7 +889,7 @@ SWGDeviceSetApi::devicesetDeviceSettingsPatch(qint32 device_set_index, SWGDevice
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -946,7 +946,7 @@ SWGDeviceSetApi::devicesetDeviceSettingsPut(qint32 device_set_index, SWGDeviceSe
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1005,7 +1005,7 @@ SWGDeviceSetApi::devicesetDeviceSubsystemRunDelete(qint32 device_set_index, qint
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1120,7 +1120,7 @@ SWGDeviceSetApi::devicesetDeviceSubsystemRunPost(qint32 device_set_index, qint32
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1501,7 +1501,7 @@ SWGDeviceSetApi::devicesetSpectrumSettingsPatch(qint32 device_set_index, SWGGLSp
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1558,7 +1558,7 @@ SWGDeviceSetApi::devicesetSpectrumSettingsPut(qint32 device_set_index, SWGGLSpec
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
diff --git a/swagger/sdrangel/code/qt5/client/SWGFeatureSetApi.cpp b/swagger/sdrangel/code/qt5/client/SWGFeatureSetApi.cpp
index 7bbf5ce73..66ae3a754 100644
--- a/swagger/sdrangel/code/qt5/client/SWGFeatureSetApi.cpp
+++ b/swagger/sdrangel/code/qt5/client/SWGFeatureSetApi.cpp
@@ -45,7 +45,7 @@ SWGFeatureSetApi::featuresetFEatureSettingsPut(qint32 feature_set_index, qint32
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -104,7 +104,7 @@ SWGFeatureSetApi::featuresetFeatureActionsPost(qint32 feature_set_index, qint32
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -217,7 +217,7 @@ SWGFeatureSetApi::featuresetFeaturePost(qint32 feature_set_index, SWGFeatureSett
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -556,7 +556,7 @@ SWGFeatureSetApi::featuresetFeatureSettingsPatch(qint32 feature_set_index, qint3
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -667,7 +667,7 @@ SWGFeatureSetApi::featuresetPresetPatch(qint32 feature_set_index, SWGFeaturePres
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -724,7 +724,7 @@ SWGFeatureSetApi::featuresetPresetPost(qint32 feature_set_index, SWGFeaturePrese
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -781,7 +781,7 @@ SWGFeatureSetApi::featuresetPresetPut(qint32 feature_set_index, SWGFeaturePreset
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
diff --git a/swagger/sdrangel/code/qt5/client/SWGHttpRequest.cpp b/swagger/sdrangel/code/qt5/client/SWGHttpRequest.cpp
index 4c399233c..7d4fb7ab9 100644
--- a/swagger/sdrangel/code/qt5/client/SWGHttpRequest.cpp
+++ b/swagger/sdrangel/code/qt5/client/SWGHttpRequest.cpp
@@ -16,6 +16,7 @@
 #include <QFileInfo>
 #include <QBuffer>
 #include <QtGlobal>
+#include <QRandomGenerator>
 
 
 namespace SWGSDRangel {
@@ -53,7 +54,7 @@ void SWGHttpRequestInput::add_file(QString variable_name, QString local_filename
 SWGHttpRequestWorker::SWGHttpRequestWorker(QObject *parent)
     : QObject(parent), manager(nullptr)
 {
-    qsrand(QDateTime::currentDateTime().toTime_t());
+    QRandomGenerator::global()->seed(QDateTime::currentDateTime().toTime_t());
 
     manager = new QNetworkAccessManager(this);
     connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(on_manager_finished(QNetworkReply*)));
@@ -143,12 +144,12 @@ void SWGHttpRequestWorker::execute(SWGHttpRequestInput *input) {
             isFormData = true;
             foreach (QString key, input->vars.keys()) {
                 if (!first) {
-                    request_content.append("&");
+                    request_content.append('&');
                 }
                 first = false;
 
                 request_content.append(QUrl::toPercentEncoding(key));
-                request_content.append("=");
+                request_content.append('=');
                 request_content.append(QUrl::toPercentEncoding(input->vars.value(key)));
             }
 
@@ -163,30 +164,30 @@ void SWGHttpRequestWorker::execute(SWGHttpRequestInput *input) {
 
         boundary = "__-----------------------"
             + QString::number(QDateTime::currentDateTime().toTime_t())
-            + QString::number(qrand());
+            + QString::number(QRandomGenerator::global()->generate());
         QString boundary_delimiter = "--";
         QString new_line = "\r\n";
 
         // add variables
         foreach (QString key, input->vars.keys()) {
             // add boundary
-            request_content.append(boundary_delimiter);
-            request_content.append(boundary);
-            request_content.append(new_line);
+            request_content.append(boundary_delimiter.toUtf8());
+            request_content.append(boundary.toUtf8());
+            request_content.append(new_line.toUtf8());
 
             // add header
-            request_content.append("Content-Disposition: form-data; ");
-            request_content.append(http_attribute_encode("name", key));
-            request_content.append(new_line);
-            request_content.append("Content-Type: text/plain");
-            request_content.append(new_line);
+            request_content.append(QString("Content-Disposition: form-data; ").toUtf8());
+            request_content.append(http_attribute_encode("name", key).toUtf8());
+            request_content.append(new_line.toUtf8());
+            request_content.append(QString("Content-Type: text/plain").toUtf8());
+            request_content.append(new_line.toUtf8());
 
             // add header to body splitter
-            request_content.append(new_line);
+            request_content.append(new_line.toUtf8());
 
             // add variable content
-            request_content.append(input->vars.value(key));
-            request_content.append(new_line);
+            request_content.append((input->vars.value(key)).toUtf8());
+            request_content.append(new_line.toUtf8());
         }
 
         // add files
@@ -218,40 +219,41 @@ void SWGHttpRequestWorker::execute(SWGHttpRequestInput *input) {
             }
 
             // add boundary
-            request_content.append(boundary_delimiter);
-            request_content.append(boundary);
-            request_content.append(new_line);
+            request_content.append(boundary_delimiter.toUtf8());
+            request_content.append(boundary.toUtf8());
+            request_content.append(new_line.toUtf8());
 
             // add header
-            request_content.append(QString("Content-Disposition: form-data; %1; %2").arg(
+            QString s = QString("Content-Disposition: form-data; %1; %2").arg(
                 http_attribute_encode("name", file_info->variable_name),
                 http_attribute_encode("filename", file_info->request_filename)
-            ));
-            request_content.append(new_line);
+            );
+            request_content.append(s.toUtf8());
+            request_content.append(new_line.toUtf8());
 
             if (file_info->mime_type != nullptr && !file_info->mime_type.isEmpty()) {
-                request_content.append("Content-Type: ");
-                request_content.append(file_info->mime_type);
-                request_content.append(new_line);
+                request_content.append(QString("Content-Type: ").toUtf8());
+                request_content.append((file_info->mime_type).toUtf8());
+                request_content.append(new_line.toUtf8());
             }
 
-            request_content.append("Content-Transfer-Encoding: binary");
-            request_content.append(new_line);
+            request_content.append(QString("Content-Transfer-Encoding: binary").toUtf8());
+            request_content.append(new_line.toUtf8());
 
             // add header to body splitter
-            request_content.append(new_line);
+            request_content.append(new_line.toUtf8());
 
             // add file content
             request_content.append(file.readAll());
-            request_content.append(new_line);
+            request_content.append(new_line.toUtf8());
 
             file.close();
         }
 
         // add end of body
-        request_content.append(boundary_delimiter);
-        request_content.append(boundary);
-        request_content.append(boundary_delimiter);
+        request_content.append(boundary_delimiter.toUtf8());
+        request_content.append(boundary.toUtf8());
+        request_content.append(boundary_delimiter.toUtf8());
     }
 
     if(input->request_body.size() > 0) {
diff --git a/swagger/sdrangel/code/qt5/client/SWGInstanceApi.cpp b/swagger/sdrangel/code/qt5/client/SWGInstanceApi.cpp
index aeba75b7d..057eb6492 100644
--- a/swagger/sdrangel/code/qt5/client/SWGInstanceApi.cpp
+++ b/swagger/sdrangel/code/qt5/client/SWGInstanceApi.cpp
@@ -145,7 +145,7 @@ SWGInstanceApi::instanceAMBEDevicesPatch(SWGAMBEDevices& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -200,7 +200,7 @@ SWGInstanceApi::instanceAMBEDevicesPut(SWGAMBEDevices& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -411,7 +411,7 @@ SWGInstanceApi::instanceAudioInputDelete(SWGAudioInputDevice& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -466,7 +466,7 @@ SWGInstanceApi::instanceAudioInputPatch(SWGAudioInputDevice& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -573,7 +573,7 @@ SWGInstanceApi::instanceAudioOutputDelete(SWGAudioOutputDevice& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -628,7 +628,7 @@ SWGInstanceApi::instanceAudioOutputPatch(SWGAudioOutputDevice& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -795,7 +795,7 @@ SWGInstanceApi::instanceConfigPatch(SWGInstanceConfigResponse& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -850,7 +850,7 @@ SWGInstanceApi::instanceConfigPut(SWGInstanceConfigResponse& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1069,7 +1069,7 @@ SWGInstanceApi::instanceFeaturePresetDelete(SWGFeaturePresetIdentifier& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1340,7 +1340,7 @@ SWGInstanceApi::instanceLimeRFEConfigPut(SWGLimeRFESettings& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1455,7 +1455,7 @@ SWGInstanceApi::instanceLimeRFERunPut(SWGLimeRFESettings& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1614,7 +1614,7 @@ SWGInstanceApi::instanceLocationPut(SWGLocationInformation& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1721,7 +1721,7 @@ SWGInstanceApi::instanceLoggingPut(SWGLoggingInfo& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1776,7 +1776,7 @@ SWGInstanceApi::instancePresetDelete(SWGPresetIdentifier& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1831,7 +1831,7 @@ SWGInstanceApi::instancePresetFilePost(SWGPresetExport& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1886,7 +1886,7 @@ SWGInstanceApi::instancePresetFilePut(SWGPresetImport& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -1993,7 +1993,7 @@ SWGInstanceApi::instancePresetPatch(SWGPresetTransfer& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -2048,7 +2048,7 @@ SWGInstanceApi::instancePresetPost(SWGPresetTransfer& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());
     
 
 
@@ -2103,7 +2103,7 @@ SWGInstanceApi::instancePresetPut(SWGPresetTransfer& body) {
 
     
     QString output = body.asJson();
-    input.request_body.append(output);
+    input.request_body.append(output.toUtf8());