diff --git a/src/MFRC522.h b/src/MFRC522.h
index 09c72fc..7fa6288 100644
--- a/src/MFRC522.h
+++ b/src/MFRC522.h
@@ -75,6 +75,8 @@
 #ifndef MFRC522_h
 #define MFRC522_h
 
+#include "require_cpp11.h"
+#include "deprecated.h"
 // Enable integer limits
 #define __STDC_LIMIT_MACROS
 #include <stdint.h>
@@ -329,6 +331,7 @@ public:
 	// Functions for setting up the Arduino
 	/////////////////////////////////////////////////////////////////////////////////////
 	MFRC522();
+	DEPRECATED_MSG("use MFRC522(byte chipSelectPin, byte resetPowerDownPin)")
 	MFRC522(byte resetPowerDownPin);
 	MFRC522(byte chipSelectPin, byte resetPowerDownPin);
 	
@@ -347,6 +350,7 @@ public:
 	// Functions for manipulating the MFRC522
 	/////////////////////////////////////////////////////////////////////////////////////
 	void PCD_Init();
+	DEPRECATED_MSG("use PCD_Init(byte chipSelectPin, byte resetPowerDownPin)")
 	void PCD_Init(byte resetPowerDownPin);
 	void PCD_Init(byte chipSelectPin, byte resetPowerDownPin);
 	void PCD_Reset();
@@ -405,8 +409,11 @@ public:
 	
 	// Advanced functions for MIFARE
 	void MIFARE_SetAccessBits(byte *accessBitBuffer, byte g0, byte g1, byte g2, byte g3);
+	DEPRECATED_MSG("will move to extra class in next version")
 	bool MIFARE_OpenUidBackdoor(bool logErrors);
+	DEPRECATED_MSG("will move to extra class in next version")
 	bool MIFARE_SetUid(byte *newUid, byte uidSize, bool logErrors);
+	DEPRECATED_MSG("will move to extra class in next version")
 	bool MIFARE_UnbrickUidSector(bool logErrors);
 	
 	/////////////////////////////////////////////////////////////////////////////////////
diff --git a/src/deprecated.h b/src/deprecated.h
new file mode 100644
index 0000000..cba2cf2
--- /dev/null
+++ b/src/deprecated.h
@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) 2016 by Ludwig Grill (www.rotzbua.de)
+ * Simple deprecated workaround for Arduino IDE
+ * IDE 1.6.8 use gcc 4.8 which do not support c++14 [[deprecated]]
+ * Later versions should support c++14, then use c++14 syntax
+ */
+#ifndef DEPRECATED_H
+#define DEPRECATED_H
+
+#ifdef __has_cpp_attribute
+#if __has_cpp_attribute(deprecated)
+#define DEPRECATED [[deprecated]]
+#define DEPRECATED_MSG(msg) [[deprecated(msg)]]
+#endif // __has_cpp_attribute(deprecated)
+#else
+#define DEPRECATED __attribute__((deprecated))
+#define DEPRECATED_MSG(msg) __attribute__((deprecated(msg)))
+#endif // __has_cpp_attribute
+
+#endif // DEPRECATED_H
diff --git a/src/require_cpp11.h b/src/require_cpp11.h
new file mode 100644
index 0000000..6561cd8
--- /dev/null
+++ b/src/require_cpp11.h
@@ -0,0 +1,12 @@
+/**
+ * Copyright (c) 2016 by Ludwig Grill (www.rotzbua.de)
+ * Throws error if c++11 is not supported
+ */
+#ifndef REQUIRE_CPP11_H
+#define REQUIRE_CPP11_H
+
+#if __cplusplus < 201103L
+#error "This library needs at least a C++11 compliant compiler, maybe compiler argument for C++11 support is missing or if you use Arduino IDE upgrade to version >=1.6.6"
+#endif
+
+#endif // REQUIRE_CPP11_H