diff --git a/update.h b/update.h
index cb1d01a..8dcfaea 100644
--- a/update.h
+++ b/update.h
@@ -58,6 +58,7 @@ public:
                     char const *baudrate = "115200");
     virtual ~Update() override;
     bool doUpdate(int &displayIndex, QStringList const &linesToWorkOn);
+    bool checkDownloadedJsonVersions(QStringList const& jsonFileNames);
 
     hwinf *hw() { return m_hw; }
     hwinf const *hw() const { return m_hw; }
@@ -87,6 +88,7 @@ private:
     bool downloadJson(enum FileTypeJson type, int templateIdx,
                       QString jsFileToSendToDC) const;
     QStringList getDcSoftAndHardWareVersion();
+    QString getFileVersion(QString const& jsonFile);
 
 private slots:
     void readyReadStandardOutput();