diff --git a/build.sh b/build.sh
index 676f6a8..d72b4a1 100644
--- a/build.sh
+++ b/build.sh
@@ -3,7 +3,7 @@
 declare binarylib_dir='None'
 declare gcc_version='10.3'
 declare module_name="openGauss"
-declare version_number='6.0.0'
+declare version_number='6.0.0-RC1'
 declare version_Kernel='92.298'
 ROOT_DIR=$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)
 echo "ROOT_DIR : $ROOT_DIR"
diff --git a/script/base_diff/comm_constants.py b/script/base_diff/comm_constants.py
index 7d442c0..f77c207 100644
--- a/script/base_diff/comm_constants.py
+++ b/script/base_diff/comm_constants.py
@@ -20,7 +20,7 @@
 class CommConstants:
     """ constants for open gauss."""
     PACKAGE_TYPE = "bz2File"
-    VERSION_PATTERN = r'[0-9]+\.[0-9]+\.[0-9]+'
+    VERSION_PATTERN = r'(\d+\.\d+\.\d+)(-RC\d+)?'
     VERSION_EXAMPLE = "openGauss-1.0"
 
     # upgrade sql sha file and sql file
diff --git a/simpleInstall/install.sh b/simpleInstall/install.sh
index 714210d..fe9ab4f 100644
--- a/simpleInstall/install.sh
+++ b/simpleInstall/install.sh
@@ -8,7 +8,7 @@ then
 fi
 
 readonly cur_path=$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd && cd - &>/dev/null)
-readonly version="6.0.0"
+readonly version="6.0.0-RC1"
 
 source $cur_path"/common.sh"