diff --git a/CHANGELOG b/CHANGELOG
index 0a27869..22dbe96 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,9 @@
-Version 0.9.3 prerelease (2011.02.27):
+Version 0.9.3  (2012.12.28):
+    * fixed:   in Big::FromDouble(double value) (only 32 bit version)
+               buffer overflow in referencing to UInt<2>
+               this was used when 'value' was in so called "unnormalized" state
+               (E=0 and F is nonzero)
+               it produced incorrect mantissa (on about 8th decimal digit up)
     * added:   Parser::InitCGamma()
                initializing coefficients used when calculating the gamma (or factorial) function
                this speed up the next calculations
diff --git a/COPYRIGHT b/COPYRIGHT
index 0eb8d17..15bec4e 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,4 +1,4 @@
-Copyright (c) 2006-2011, Tomasz Sowa
+Copyright (c) 2006-2012, Tomasz Sowa
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/ttmath/ttmath.h b/ttmath/ttmath.h
index f862b8b..ee40e6e 100644
--- a/ttmath/ttmath.h
+++ b/ttmath/ttmath.h
@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2006-2010, Tomasz Sowa
+ * Copyright (c) 2006-2012, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -2835,7 +2835,9 @@ namespace ttmath
 	he can only use '#include <ttmath/ttmath.h>'
 */
 #include "ttmathparser.h"
-#include "ttmathdec.h"
+
+// Dec is not finished yet
+//#include "ttmathdec.h"
 
 
 
diff --git a/ttmath/ttmathtypes.h b/ttmath/ttmathtypes.h
index 539c100..3d9ddbe 100644
--- a/ttmath/ttmathtypes.h
+++ b/ttmath/ttmathtypes.h
@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2006-2011, Tomasz Sowa
+ * Copyright (c) 2006-2012, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -74,7 +74,7 @@
 #define TTMATH_MINOR_VER		9
 #define TTMATH_REVISION_VER		3
 
-#define TTMATH_PRERELEASE_VER	1
+#define TTMATH_PRERELEASE_VER	0
 
 
 
@@ -122,7 +122,7 @@
 			_M_IX86     defined by Visual Studio, Intel C/C++, Digital Mars and Watcom C/C++
 
 			amd64 architecture:
-			__x86_64__  defined by GNU C and Sun Studio
+			__x86_64__  defined by GNU C, CLANG (LLVM) and Sun Studio
 			_M_X64  	defined by Visual Studio
 
 			asm version is available only for x86 or amd64 platforms
@@ -134,7 +134,8 @@
 
 	#if !defined _MSC_VER && !defined __GNUC__
 		/*!
-			another compilers than MS VC or GCC by default use no asm version
+			another compilers than MS VC or GCC or CLANG (LLVM) by default use no asm version
+			(CLANG defines __GNUC__ too)
 		*/
 		#define TTMATH_NOASM
 	#endif
diff --git a/ttmath/ttmathuint.h b/ttmath/ttmathuint.h
index 2365bf5..d00a0d7 100644
--- a/ttmath/ttmathuint.h
+++ b/ttmath/ttmathuint.h
@@ -1260,9 +1260,18 @@ private:
 			UInt<ss_size*2> res;
 			Mul2Big2<ss_size>(ss1, ss2, res);
 
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-compare"
+#endif
+
 			for(uint i=0 ; i<ss_size*2 ; ++i)
 				result[i] = res.table[i];
 
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
 		return;
 		}
 		else
@@ -1355,10 +1364,18 @@ private:
 
 		Mul3Big2<first_size>(temp.table, temp2.table, z1.table);
 
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-compare"
+#endif
+
 		// clearing the rest of z1
 		for(i=first_size*2 ; i<first_size*3 ; ++i)
 			z1.table[i] = 0;
 
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
 		
 		if( xc )
 		{
@@ -1375,9 +1392,18 @@ private:
 
 		if( xc && yc )
 		{
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-compare"
+#endif
+
 			for( i=first_size*2 ; i<first_size*3 ; ++i )
 				if( ++z1.table[i] != 0 )
-					break;  // break if there was no carry 
+ 					break;  // break if there was no carry 
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
 		}
 
 		// z1 = z1 - z2
@@ -1396,11 +1422,20 @@ private:
 			uint z1_size = result_size - first_size;
 			TTMATH_ASSERT( z1_size <= first_size*3 )
 
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-compare"
+#endif
+
 			for(i=z1_size ; i<first_size*3 ; ++i)
 			{
 				TTMATH_ASSERT( z1.table[i] == 0 )
 			}
-			
+
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+ 			
 			c = AddVector(result+first_size, z1.table, result_size-first_size, z1_size, result+first_size);
 			TTMATH_ASSERT(c==0)
 		}
@@ -2505,10 +2540,18 @@ public:
 	*/
 	bool IsOnlyTheHighestBitSet() const
 	{
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-compare"
+#endif
+
 		for(uint i=0 ; i<value_size-1 ; ++i)
 			if( table[i] != 0 )
 				return false;
 
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
 		if( table[value_size-1] != TTMATH_UINT_HIGHEST_BIT )
 			return false;
 
@@ -4036,7 +4079,7 @@ public:
 
 
 	/*
-		following methods are defined in:
+		Following methods are defined in:
 			ttmathuint_x86.h
 			ttmathuint_x86_64.h
 			ttmathuint_noasm.h