diff --git a/CHANGELOG b/CHANGELOG
index 54b7961..c280246 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,4 @@
-Version 0.9.1 prerelease (2010.02.02):
+Version 0.9.1 (2010.02.07):
     * fixed:   the parser didn't use characters for changing the base (# and &)
                those characters were skipped
                (this bug was introduced in 0.9.0)
diff --git a/samples/parser.cpp b/samples/parser.cpp
index ba103dc..6cbf192 100644
--- a/samples/parser.cpp
+++ b/samples/parser.cpp
@@ -29,6 +29,11 @@ const char equation[] = " (34 + 24) * 123 - 34.32 ^ 6 * sin(2.56) - atan(10)";
 
 /*
 the result (on 32 bit platform):
-
 -897705014.52573107
 */
+
+
+/*
+the result (on 64 bit platform):
+-897705014.5257310676097719585259773124
+*/
diff --git a/ttmath/ttmathtypes.h b/ttmath/ttmathtypes.h
index 05d9e12..f3236ea 100644
--- a/ttmath/ttmathtypes.h
+++ b/ttmath/ttmathtypes.h
@@ -65,7 +65,7 @@
 #define TTMATH_MAJOR_VER		0
 #define TTMATH_MINOR_VER		9
 #define TTMATH_REVISION_VER		1
-#define TTMATH_PRERELEASE_VER	1
+#define TTMATH_PRERELEASE_VER	0
 
 
 /*!