diff --git a/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl.h b/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl.h
index 87fd6d7781..a95878e05c 100644
--- a/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl.h
+++ b/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl.h
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008 - 2013 The Khronos Group Inc.
+ * Copyright (c) 2008 - 2015 The Khronos Group Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and/or associated documentation files (the
@@ -196,6 +196,7 @@ typedef struct _cl_buffer_region {
 #define CL_VERSION_1_1                              1
 #define CL_VERSION_1_2                              1
 #define CL_VERSION_2_0                              1
+#define CL_VERSION_2_1                              1
 
 /* cl_bool */
 #define CL_FALSE                                    0
@@ -662,6 +663,15 @@ clGetDeviceInfo(cl_device_id    /* device */,
                 size_t          /* param_value_size */, 
                 void *          /* param_value */,
                 size_t *        /* param_value_size_ret */) CL_API_SUFFIX__VERSION_1_0;
+
+extern CL_API_ENTRY cl_int CL_API_CALL
+clGetDeviceAndHostTimer(cl_device_id /* device */,
+                        cl_ulong * /* device_timestamp */,
+                        cl_ulong * /* host_timestamp */) CL_API_SUFFIX__VERSION_2_1;
+
+extern CL_API_ENTRY cl_int CL_API_CALL
+clGetHostTimer(cl_device_id /* device */,
+               cl_ulong *   /* host_timestamp */) CL_API_SUFFIX__VERSION_2_1;
     
 extern CL_API_ENTRY cl_int CL_API_CALL
 clCreateSubDevices(cl_device_id                         /* in_device */,
@@ -940,6 +950,10 @@ clSetKernelExecInfo(cl_kernel            /* kernel */,
                     cl_kernel_exec_info  /* param_name */,
                     size_t               /* param_value_size */,
                     const void *         /* param_value */) CL_API_SUFFIX__VERSION_2_0;
+
+extern CL_API_ENTRY cl_kernel CL_API_CALL
+clCloneKernel(const cl_kernel /* source_kernel */,
+              cl_int *        /* errcode_ret */) CL_API_SUFFIX__VERSION_2_1;
     
 extern CL_API_ENTRY cl_int CL_API_CALL
 clGetKernelInfo(cl_kernel       /* kernel */,
@@ -1300,6 +1314,15 @@ clEnqueueSVMUnmap(cl_command_queue  /* command_queue */,
                   const cl_event *  /* event_wait_list */,
                   cl_event *        /* event */) CL_API_SUFFIX__VERSION_2_0;
     
+extern CL_API_ENTRY cl_int CL_API_CALL
+clEnqueueSVMMigrateMem(cl_command_queue /* command_queue */,
+                       cl_uint          /* num_svm_pointers */,
+                       const void **    /* svm_pointers */,
+                       const size_t *   /* sizes */,
+                       cl_mem_migration_flags /* flags */,
+                       cl_uint          /* num_events_in_wait_list */,
+                       const cl_event * /* event_wait_list */,
+                       cl_event *       /* event */) CL_API_SUFFIX__VERSION_2_1;
 
 /* Extension function access
  *
diff --git a/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_ext.h b/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_ext.h
index 3a27c92089..d67eb72734 100644
--- a/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_ext.h
+++ b/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_ext.h
@@ -482,6 +482,25 @@ typedef CL_API_ENTRY cl_int
 						      size_t* /*param_value_size_ret*/ ) CL_EXT_SUFFIX__VERSION_2_0;
 #endif /* CL_VERSION_2_0 */
 
+#ifdef CL_VERSION_2_1
+/*********************************
+* cl_khr_priority_hints extension
+*********************************/
+#define cl_khr_priority_hints 1
+
+/* cl_command_queue_properties */
+#define CL_QUEUE_PRIORITY_KHR 0x0000
+#define CL_QUEUE_PRIORITY_HIGH_KHR (3 << 16)
+#define CL_QUEUE_PRIORITY_MED_KHR  (2 << 16)
+#define CL_QUEUE_PRIORITY_LOW_KHR  (1 << 16)
+
+#define CL_QUEUE_THROTTLE_KHR 0x0000
+#define CL_QUEUE_THROTTLE_HIGH_KHR (3 << 16)
+#define CL_QUEUE_THROTTLE_MED_KHR  (2 << 16)
+#define CL_QUEUE_THROTTLE_LOW_KHR  (1 << 16)
+
+#endif /* CL_VERSION_2_1 */
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_platform.h b/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_platform.h
index d813b1ff92..707c6d9335 100644
--- a/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_platform.h
+++ b/projects/clr/opencl/api/opencl/khronos/headers/opencl2.1/CL/cl_platform.h
@@ -77,6 +77,8 @@ extern "C" {
     #define CL_EXT_SUFFIX__VERSION_1_2
     #define CL_API_SUFFIX__VERSION_2_0
     #define CL_EXT_SUFFIX__VERSION_2_0
+    #define CL_API_SUFFIX__VERSION_2_1
+    #define CL_EXT_SUFFIX__VERSION_2_1
     
     #ifdef __GNUC__
         #ifdef CL_USE_DEPRECATED_OPENCL_1_0_APIS
@@ -101,7 +103,15 @@ extern "C" {
         #else
             #define CL_EXT_SUFFIX__VERSION_2_0_DEPRECATED __attribute__((deprecated))
             #define CL_EXT_PREFIX__VERSION_2_0_DEPRECATED
-         #endif
+        #endif
+
+        #ifdef CL_USE_DEPRECATED_OPENCL_2_1_APIS
+            #define CL_EXT_SUFFIX__VERSION_2_1_DEPRECATED
+            #define CL_EXT_PREFIX__VERSION_2_1_DEPRECATED
+        #else
+            #define CL_EXT_SUFFIX__VERSION_2_1_DEPRECATED __attribute__((deprecated))
+            #define CL_EXT_PREFIX__VERSION_2_1_DEPRECATED
+        #endif
     #elif _WIN32
         #ifdef CL_USE_DEPRECATED_OPENCL_1_0_APIS
             #define CL_EXT_SUFFIX__VERSION_1_0_DEPRECATED
@@ -126,6 +136,14 @@ extern "C" {
             #define CL_EXT_SUFFIX__VERSION_2_0_DEPRECATED
             #define CL_EXT_PREFIX__VERSION_2_0_DEPRECATED __declspec(deprecated)
         #endif
+
+        #ifdef CL_USE_DEPRECATED_OPENCL_2_1_APIS
+            #define CL_EXT_SUFFIX__VERSION_2_1_DEPRECATED
+            #define CL_EXT_PREFIX__VERSION_2_1_DEPRECATED
+        #else
+            #define CL_EXT_SUFFIX__VERSION_2_1_DEPRECATED
+            #define CL_EXT_PREFIX__VERSION_2_1_DEPRECATED __declspec(deprecated)
+        #endif
     #else
         #define CL_EXT_SUFFIX__VERSION_1_0_DEPRECATED
         #define CL_EXT_PREFIX__VERSION_1_0_DEPRECATED
@@ -135,6 +153,9 @@ extern "C" {
     
         #define CL_EXT_SUFFIX__VERSION_2_0_DEPRECATED
         #define CL_EXT_PREFIX__VERSION_2_0_DEPRECATED
+    
+        #define CL_EXT_SUFFIX__VERSION_2_1_DEPRECATED
+        #define CL_EXT_PREFIX__VERSION_2_1_DEPRECATED
     #endif
 #endif