diff --git a/src/app/container/vcontainer.cpp b/src/app/container/vcontainer.cpp
index f5e59523a..6a5ceb691 100644
--- a/src/app/container/vcontainer.cpp
+++ b/src/app/container/vcontainer.cpp
@@ -36,7 +36,7 @@ quint32 VContainer::_id = 0;
 
 //---------------------------------------------------------------------------------------------------------------------
 VContainer::VContainer()
-    :_size(50), sizeName("Сг"), _height(176), heightName("P"), gObjects(QHash<quint32, VGObject *>()),
+    :_size(50), sizeName(size_M), _height(176), heightName(height_M), gObjects(QHash<quint32, VGObject *>()),
       measurements(QHash<QString, VMeasurement>()), increments(QHash<QString, VIncrement>()),
       lengthLines(QHash<QString, qreal>()), lineAngles(QHash<QString, qreal>()), lengthSplines(QHash<QString, qreal>()),
       lengthArcs(QHash<QString, qreal>()), details(QHash<quint32, VDetail>())
@@ -51,7 +51,7 @@ VContainer &VContainer::operator =(const VContainer &data)
 
 //---------------------------------------------------------------------------------------------------------------------
 VContainer::VContainer(const VContainer &data)
-    :_size(50), sizeName("Сг"), _height(176), heightName("P"), gObjects(QHash<quint32, VGObject *>()),
+    :_size(50), sizeName(size_M), _height(176), heightName(height_M), gObjects(QHash<quint32, VGObject *>()),
       measurements(QHash<QString, VMeasurement>()), increments(QHash<QString, VIncrement>()),
       lengthLines(QHash<QString, qreal>()), lineAngles(QHash<QString, qreal>()), lengthSplines(QHash<QString, qreal>()),
       lengthArcs(QHash<QString, qreal>()), details(QHash<quint32, VDetail>())
diff --git a/src/app/xml/vdomdocument.cpp b/src/app/xml/vdomdocument.cpp
index 81f52a123..c65e1b50c 100644
--- a/src/app/xml/vdomdocument.cpp
+++ b/src/app/xml/vdomdocument.cpp
@@ -83,11 +83,12 @@ inline qint64  MessageHandler::column() const
     return m_sourceLocation.column();
 }
 
-const QString VDomDocument::AttrId   = QStringLiteral("id");
-const QString VDomDocument::AttrUnit = QStringLiteral("unit");
-const QString VDomDocument::UnitMM   = QStringLiteral("mm");
-const QString VDomDocument::UnitCM   = QStringLiteral("cm");
+const QString VDomDocument::AttrId     = QStringLiteral("id");
+const QString VDomDocument::AttrUnit   = QStringLiteral("unit");
+const QString VDomDocument::UnitMM     = QStringLiteral("mm");
+const QString VDomDocument::UnitCM     = QStringLiteral("cm");
 const QString VDomDocument::UnitINCH   = QStringLiteral("inch");
+const QString VDomDocument::TagVersion = QStringLiteral("version");
 
 //---------------------------------------------------------------------------------------------------------------------
 VDomDocument::VDomDocument(VContainer *data)
@@ -431,6 +432,30 @@ bool VDomDocument::SaveDocument(const QString &fileName)
     return result;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+QString VDomDocument::Major() const
+{
+    QString version = UniqueTagText(TagVersion, "0.0.0");
+    QStringList v = version.split(".");
+    return v.at(0);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QString VDomDocument::Minor() const
+{
+    QString version = UniqueTagText(TagVersion, "0.0.0");
+    QStringList v = version.split(".");
+    return v.at(1);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QString VDomDocument::Patch() const
+{
+    QString version = UniqueTagText(TagVersion, "0.0.0");
+    QStringList v = version.split(".");
+    return v.at(2);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void VDomDocument::setTagText(const QString &tag, const QString &text)
 {
diff --git a/src/app/xml/vdomdocument.h b/src/app/xml/vdomdocument.h
index a0369050e..6f3777205 100644
--- a/src/app/xml/vdomdocument.h
+++ b/src/app/xml/vdomdocument.h
@@ -35,6 +35,11 @@
 #include <QDebug>
 #include "../options.h"
 
+/*
+   can be used like #if (V_FORMAT_VERSION >= V_FORMAT_VERSION_CHECK(4, 4, 0))
+*/
+#define V_FORMAT_VERSION_CHECK(major, minor, patch) ((major<<16)|(minor<<8)|(patch))
+
 #ifdef Q_CC_GNU
     #pragma GCC diagnostic push
     #pragma GCC diagnostic ignored "-Weffc++"
@@ -70,6 +75,7 @@ public:
     static const QString    UnitMM;
     static const QString    UnitCM;
     static const QString    UnitINCH;
+    static const QString    TagVersion;
     /**
     * @param data container with variables
     * @param comboBoxDraws pointer to the ComboBox that will hold the pattern piece names
@@ -145,7 +151,10 @@ public:
     void           setContent(const QString &fileName);
     static Valentina::Units StrToUnits(const QString &unit);
     static QString UnitsToStr(const Valentina::Units &unit);
-    virtual bool SaveDocument(const QString &fileName);
+    virtual bool   SaveDocument(const QString &fileName);
+    QString        Major() const;
+    QString        Minor() const;
+    QString        Patch() const;
 protected:
     /**
      * @brief data container with data.
diff --git a/src/app/xml/vindividualmeasurements.h b/src/app/xml/vindividualmeasurements.h
index 148121bd9..e8dcdb9df 100644
--- a/src/app/xml/vindividualmeasurements.h
+++ b/src/app/xml/vindividualmeasurements.h
@@ -32,6 +32,14 @@
 #include "vdomdocument.h"
 #include <QDate>
 
+/*
+   VIT_VERSION is (major << 16) + (minor << 8) + patch.
+*/
+// version without patch part
+#define VIT_MIN_VERSION 0x000100
+// max support version of format
+#define VIT_VERSION 0x000100
+
 class VIndividualMeasurements:public VDomDocument
 {
 public:
diff --git a/src/app/xml/vpattern.h b/src/app/xml/vpattern.h
index 101e95002..da166a6b0 100644
--- a/src/app/xml/vpattern.h
+++ b/src/app/xml/vpattern.h
@@ -45,6 +45,14 @@ namespace Document
 }
 Q_DECLARE_OPERATORS_FOR_FLAGS(Document::Documents)
 
+/*
+   VAL_VERSION is (major << 16) + (minor << 8) + patch.
+*/
+// version without patch part
+#define VAL_MIN_VERSION 0x000100
+// max support version of format
+#define VAL_VERSION 0x000100
+
 /**
  * @brief The VPattern class working with pattern file.
  */
diff --git a/src/app/xml/vstandardmeasurements.h b/src/app/xml/vstandardmeasurements.h
index 9b6b1d694..a970f46c4 100644
--- a/src/app/xml/vstandardmeasurements.h
+++ b/src/app/xml/vstandardmeasurements.h
@@ -31,6 +31,14 @@
 
 #include "vdomdocument.h"
 
+/*
+   VST_VERSION is (major << 16) + (minor << 8) + patch.
+*/
+// version without patch part
+#define VST_MIN_VERSION 0x000100
+// max support version of format
+#define VST_VERSION 0x000100
+
 class VStandardMeasurements:public VDomDocument
 {
 public: