diff --git a/Changelog.txt b/Changelog.txt
index c222c7eee..019870d8c 100644
--- a/Changelog.txt
+++ b/Changelog.txt
@@ -1,4 +1,12 @@
 OpenBLAS ChangeLog
+====================================================================
+Version 0.2.1
+30-Jun-2012
+common:
+x86/x86-64:
+	* Fixed the SEGFAULT bug about hyper-theading
+	* Support AMD Bulldozer by using GotoBLAS2 AMD Barcelona codes
+
 ====================================================================
 Version 0.2.0
 26-Jun-2012
diff --git a/Makefile.rule b/Makefile.rule
index 299273773..082487835 100644
--- a/Makefile.rule
+++ b/Makefile.rule
@@ -3,7 +3,7 @@
 #
 
 # This library's version
-VERSION = 0.2.0
+VERSION = 0.2.1
 
 # If you set the suffix, the library name will be libopenblas_$(LIBNAMESUFFIX).a
 # and libopenblas_$(LIBNAMESUFFIX).so. Meanwhile, the soname in shared library 
diff --git a/README.md b/README.md
index 82e9f528c..52d098366 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,7 @@ Please read GotoBLAS_01Readme.txt
 - **Intel Xeon 56xx (Westmere)**: Used GotoBLAS2 Nehalem codes.
 - **Intel Sandy Bridge**: Optimized Level-3 BLAS with AVX on x86-64.
 - **AMD Bobcat**: Used GotoBLAS2 Barcelona codes.
+- **AMD Bulldozer**: Used GotoBLAS2 Barcelona codes.
 
 #### MIPS64:
 - **ICT Loongson 3A**: Optimized Level-3 BLAS and the part of Level-1,2.