diff --git a/ScStwLibraries/headers/scstwclient.h b/ScStwLibraries/headers/scstwclient.h
index f1ec27f..1955b70 100644
--- a/ScStwLibraries/headers/scstwclient.h
+++ b/ScStwLibraries/headers/scstwclient.h
@@ -40,7 +40,7 @@ public:
      *
      * \brief ScStwClient
      */
-    explicit ScStwClient();
+    explicit ScStwClient(QObject *parent = nullptr);
 
     enum State {DISCONNECTED, CONNECTING, INITIALISING, CONNECTED};
     Q_ENUM(State);
@@ -114,22 +114,6 @@ public slots:
 
     /*! updater functions */
 
-    /*!
-     * \brief Function to set the timestamp of the base station to match the client
-     * \see getTimeOffset()
-     * \return true or false
-     */
-    bool updateTime();
-
-    /*!
-     * \brief Function to update the firmware of the basestation to the version stored in the client
-     * \details will not do anything if the remote firmware is newer or the same as the clients one
-     * \see isFirmwareUpToDate()
-     * \see getFirmwareVersion()
-     * \return true: firmware was updated or is already up-to-date; false: there was an error during the update
-     */
-    bool updateFirmware();
-
     /*!
      * \brief Function to check wether the firmware of the base station is up-to-date
      * \see getFirmwareVersion()
@@ -138,14 +122,6 @@ public slots:
      */
     bool isFirmwareUpToDate();
 
-    // helper functions
-
-    /*!
-     * \brief Function to pair all extensions that are currently connected via USB to the base station
-     * \return whether the pairing was successfull
-     */
-    int pairConnectedUsbExtensions();
-
     /*!
      * \brief Function to write a setting on the base station
      * \param key the key to write to
@@ -197,6 +173,12 @@ public slots:
      */
     QString getFirmwareVersion();
 
+    /*!
+     * \brief Function to get the current API version of the base station
+     * \return
+     */
+    QString getApiVersion();
+
     /*! setter functions */
 
     /*!
diff --git a/ScStwLibraries/sources/scstwclient.cpp b/ScStwLibraries/sources/scstwclient.cpp
index 8197ee5..068524f 100644
--- a/ScStwLibraries/sources/scstwclient.cpp
+++ b/ScStwLibraries/sources/scstwclient.cpp
@@ -2,7 +2,7 @@
 
 ScStwClient * pGlobalScStwClient = nullptr;
 
-ScStwClient::ScStwClient() : QObject(nullptr)
+ScStwClient::ScStwClient(QObject * parent) : QObject(parent)
 {
     this->state = DISCONNECTED;
     this->nextConnectionId = 1;
@@ -372,40 +372,6 @@ void ScStwClient::handleSignal(QVariantMap data) {
 // --- updater functions ---
 // -------------------------
 
-bool ScStwClient::updateTime() {
-    if(abs(this->timeOffset) < 10000) {
-        // the time is already up-to-date
-        return true;
-    }
-
-    QVariantMap ret = this->sendCommand(5001, this->date->currentSecsSinceEpoch());
-    qDebug() << ret;
-
-    return ret["status"].toInt() == 200;
-}
-
-bool ScStwClient::updateFirmware() {
-    if(this->state != CONNECTED)
-        return false;
-
-    if(this->isFirmwareUpToDate())
-        return true;
-
-    QString file = ":/ScStwBasestation.sb64";
-    QFile f(file);
-    if (!f.open(QFile::ReadOnly)){
-        qDebug() << "read error " << f.error();
-        return false;
-    }
-    QString fileContents = f.readAll();
-
-    QVariantMap ret = this->sendCommand(5000, fileContents, 15000);
-
-    qDebug() << "updated firmware, status: " << ret["status"];
-
-    return ret["status"].toInt() == 200;
-}
-
 bool ScStwClient::isFirmwareUpToDate() {
     QString file = ":/ScStwBasestation.sb64";
     QFile f(file);
@@ -422,11 +388,6 @@ bool ScStwClient::isFirmwareUpToDate() {
 // --- helper functions ---
 // ------------------------
 
-int ScStwClient::pairConnectedUsbExtensions() {
-    QVariantMap ret = this->sendCommand(5002, "", 10000);
-    return ret["status"].toInt();
-}
-
 ScStw::StatusCode ScStwClient::writeRemoteSetting(ScStw::BaseStationSetting key, QString value) {
     QJsonArray requestData;
     requestData.append(key);
@@ -476,6 +437,10 @@ QString ScStwClient::getFirmwareVersion() {
     return this->firmwareVersion;
 }
 
+QString ScStwClient::getApiVersion() {
+    return this->apiVersion;
+}
+
 void ScStwClient::setExtensions(QVariantList extensions) {
     if(this->extensions != extensions){
         this->extensions = extensions;