diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2c16f052..dd573d11 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ project(pip)
 set(_PIP_MAJOR    2)
 set(_PIP_MINOR    0)
 set(_PIP_REVISION 0)
-set(_PIP_SUFFIX   _prebeta)
+set(_PIP_SUFFIX   _prealpha)
 set(_PIP_COMPANY  SHS)
 set(_PIP_DOMAIN   org.SHS)
 
diff --git a/lib/main/core/pipropertystorage.cpp b/lib/main/core/pipropertystorage.cpp
index e68d7238..679d374b 100644
--- a/lib/main/core/pipropertystorage.cpp
+++ b/lib/main/core/pipropertystorage.cpp
@@ -38,6 +38,16 @@ void PIPropertyStorage::addProperty(const PIPropertyStorage::Property & p) {
 }
 
 
+void PIPropertyStorage::addProperty(PIPropertyStorage::Property && p) {
+	for (uint i = 0; i < props.size(); ++i)
+		if (props[i].name == p.name) {
+			props[i] = std::move(p);
+			return;
+		}
+	props << std::move(p);
+}
+
+
 void PIPropertyStorage::removeProperty(const PIString & _name) {
 	for (uint i = 0; i < props.size(); ++i)
 		if (props[i].name == _name) {
diff --git a/lib/main/core/pipropertystorage.h b/lib/main/core/pipropertystorage.h
index a4a8ad15..c338b968 100644
--- a/lib/main/core/pipropertystorage.h
+++ b/lib/main/core/pipropertystorage.h
@@ -42,13 +42,33 @@ public:
 	struct PIP_EXPORT Property {
 		Property(const PIString & n = PIString(), const PIString & c = PIString(), const PIVariant & v = PIVariant(), int f = 0):
 			name(n), comment(c), value(v), flags(f) {}
-			
+		Property(const Property & o):
+			name(o.name), comment(o.comment), value(o.value), flags(o.flags) {}
+		Property(Property && o) {swap(o);}
+
+		Property & operator =(const Property & v) {
+			name = v.name;
+			comment = v.comment;
+			value = v.value;
+			flags = v.flags;
+			return *this;
+		}
+		Property & operator =(Property && v) {swap(v); return *this;}
+
+
 		bool toBool() const {return value.toBool();}
 		int toInt() const {return value.toInt();}
 		float toFloat() const {return value.toFloat();}
 		double toDouble() const {return value.toDouble();}
 		PIString toString() const {return value.toString();}
-		
+
+		void swap(Property & o) {
+			name.swap(o.name);
+			comment.swap(o.comment);
+			value.swap(o.value);
+			piSwap(flags, o.flags);
+		}
+
 		/*! Uniqueue id of property */
 		PIString name;
 
@@ -64,6 +84,8 @@ public:
 
 	PIPropertyStorage(const PIVector<Property> & pl) {props = pl;}
 
+	PIPropertyStorage(PIVector<Property> && pl): props(std::move(pl)) {}
+
 	typedef PIVector<Property>::const_iterator const_iterator;
 	typedef PIVector<Property>::iterator iterator;
 	typedef Property value_type;
@@ -97,6 +119,7 @@ public:
 	 * @param p to copy in storage
 	 */
 	void addProperty(const Property & p);
+	void addProperty(Property && p);
 
 	/**
 	 * @brief First of all construct Property with method params. After then add property if name isn't present
diff --git a/lib/main/core/pivariant.cpp b/lib/main/core/pivariant.cpp
index 2281ce11..9e9da078 100644
--- a/lib/main/core/pivariant.cpp
+++ b/lib/main/core/pivariant.cpp
@@ -59,7 +59,7 @@ PIVariant::PIVariant() {
 }
 
 
-PIVariant::PIVariant(const PIVariant &v) {
+PIVariant::PIVariant(const PIVariant & v) {
 	_type = v._type;
 	_content = v._content;
 #ifdef CUSTOM_PIVARIANT
@@ -68,6 +68,11 @@ PIVariant::PIVariant(const PIVariant &v) {
 }
 
 
+PIVariant::PIVariant(PIVariant && v) {
+	swap(v);
+}
+
+
 void PIVariant::setValueFromString(const PIString & v) {
 	switch (_type) {
 	case PIVariant::pivBool: {setValue(v.toBool());} break;
@@ -108,6 +113,12 @@ PIVariant & PIVariant::operator =(const PIVariant & v) {
 }
 
 
+PIVariant & PIVariant::operator =(PIVariant && v) {
+	swap(v);
+	return *this;
+}
+
+
 bool PIVariant::operator ==(const PIVariant & v) const {
 	return (_type == v._type) && (_content == v._content);
 }
@@ -161,6 +172,15 @@ PIString PIVariant::typeName() const {
 }
 
 
+void PIVariant::swap(PIVariant & v) {
+	piSwap(_type, v._type);
+	_content.swap(v._content);
+#ifdef CUSTOM_PIVARIANT
+	piSwap(_info, v._info);
+#endif
+}
+
+
 PIString PIVariant::typeName(PIVariant::Type type) {
 	switch (type) {
 	case PIVariant::pivBool: return "Bool";
diff --git a/lib/main/core/pivariant.h b/lib/main/core/pivariant.h
index f5da7ce1..bea37f17 100644
--- a/lib/main/core/pivariant.h
+++ b/lib/main/core/pivariant.h
@@ -247,6 +247,8 @@ public:
 
 	PIVariant(const PIVariant & v);
 
+	PIVariant(PIVariant && v);
+
 	//! Constructs variant from string
 	PIVariant(const char * v) {initType(PIString(v));}
 
@@ -467,6 +469,8 @@ public:
 	//! Assign operator
 	PIVariant & operator =(const PIVariant & v);
 	//! Assign operator
+	PIVariant & operator =(PIVariant && v);
+	//! Assign operator
 	PIVariant & operator =(const char * v) {setValue(PIString(v)); return *this;}
 	//! Assign operator
 	PIVariant & operator =(const bool v) {setValue(v); return *this;}
@@ -544,6 +548,8 @@ public:
 	//! Returns \b true if type is not Invalid
 	bool isValid() const {return _type != PIVariant::pivInvalid;}
 
+	void swap(PIVariant & v);
+
 
 	/** \brief Returns new variant from custom type
 	* \details In case of known types this function equivalent \a PIVariant(T) constructors. \n
diff --git a/lib/main/io_devices/pifile.cpp b/lib/main/io_devices/pifile.cpp
index e0e78ec6..efbcb521 100644
--- a/lib/main/io_devices/pifile.cpp
+++ b/lib/main/io_devices/pifile.cpp
@@ -394,6 +394,25 @@ void PIFile::setPrecision(int prec) {
 }
 
 
+PIFile & PIFile::put(const PIByteArray & v) {
+	writeBinary((int)v.size_s());
+	write(v);
+	return *this;
+}
+
+
+PIByteArray PIFile::get() {
+	PIByteArray ret;
+	int sz(0);
+	read(&sz, sizeof(sz));
+	if (sz > 0) {
+		ret.resize(sz);
+		read(ret.data(), sz);
+	}
+	return ret;
+}
+
+
 PIFile &PIFile::operator <<(double v) {
 	if (canWrite() && PRIVATE->fd != 0) ret = fprintf(PRIVATE->fd, ("%" + prec_str + "lf").data(), v);
 	return *this;
diff --git a/lib/main/io_devices/pifile.h b/lib/main/io_devices/pifile.h
index 1f94625b..ca6d0e6b 100644
--- a/lib/main/io_devices/pifile.h
+++ b/lib/main/io_devices/pifile.h
@@ -145,6 +145,10 @@ public:
 	
 	//! Set float numbers write precision to "prec_" digits
 	void setPrecision(int prec);
+
+	PIFile & put(const PIByteArray & v);
+
+	PIByteArray get();
 	
 	
 	//! Write to file binary content of "v"
diff --git a/lib/main/system/pisysteminfo.cpp b/lib/main/system/pisysteminfo.cpp
index bcea0873..aec6aeb2 100644
--- a/lib/main/system/pisysteminfo.cpp
+++ b/lib/main/system/pisysteminfo.cpp
@@ -178,7 +178,7 @@ PIVector<PISystemInfo::MountInfo> PISystemInfo::mountInfo(bool ignore_cache) {
 	if (l_df.size_s() < 2) return ret;
 	l_df.pop_front();
 	piForeachC (PIString & s, l_df) {
-		PIStringList ml(s.replaceAll("  ", " ").split(" "));
+		PIStringList ml(s.replacedAll("  ", " ").split(" "));
 		if (ml.size_s() < 2) continue;
 		if (ml.front() == "none") continue;
 		m.space_all = ml[1].toULLong();