diff --git a/packaging/release.sh b/packaging/release.sh
index 6a00f0b79db7ef093be9d675fb4a17888daaf929..58f69589d831f51604a67d54942520cb41700bc2 100755
--- a/packaging/release.sh
+++ b/packaging/release.sh
@@ -123,11 +123,11 @@ cd ${compile_dir}
 
 # arm only support lite ver
 if [ -z "$armver" ]; then
-  cmake ${top_dir}/../
+  cmake ../
 elif [ "$armver" == "arm64" ]; then
-  cmake ${top_dir}/../ -DVERSION=lite -DARMVER=arm64
+  cmake ../ -DARMVER=arm64
 elif [ "$armver" == "arm32" ]; then
-  cmake ${top_dir}/../ -DVERSION=lite -DARMVER=arm32
+  cmake ../ -DARMVER=arm32
 else
   echo "input parameter error!!!"
   return
diff --git a/packaging/tools/install.sh b/packaging/tools/install.sh
index 2911452fb43d7b484c55b66bcc80c39ba3c6c2ed..019e614e0b8333a55a8bdf8318aa5a865032cbd3 100755
--- a/packaging/tools/install.sh
+++ b/packaging/tools/install.sh
@@ -313,9 +313,9 @@ vercomp () {
 
 function is_version_compatible() {
 
-    curr_version=$(${bin_dir}/taosd -V | cut -d ' ' -f 2)
+    curr_version=$(${bin_dir}/taosd -V | head -1 | cut -d ' ' -f 2)
 
-    min_compatible_version=$(${script_dir}/bin/taosd -V | cut -d ' ' -f 4)
+    min_compatible_version=$(${script_dir}/bin/taosd -V | head -1 | cut -d ' ' -f 4)
 
     vercomp $curr_version $min_compatible_version
     case $? in
diff --git a/packaging/tools/release_note b/packaging/tools/release_note
index 3a3cd81ca91bc274e8375d12d3e7de7890b016f6..4578a4523c50f3b0764ce05add5920cf0be72172 100644
--- a/packaging/tools/release_note
+++ b/packaging/tools/release_note
@@ -1,3 +1,14 @@
+taos-1.6.4.0 (Release on 2019-12-01)
+Bug fixed:
+    1.Look for possible causes of file corruption and fix them
+    2.Encapsulate memory allocation functions to reduce the possibility of crashes
+    3.Increase Arm64 compilation options
+    4.Remove most of the warnings in the code
+    5.Provide a variety of connector usage documents
+    6.Network connection can be selected in udp and tcp
+    7.Allow the maximum number of Tags to be 32
+    8.Bugs reported by the user
+
 taos-1.5.2.6 (Release on 2019-05-13)
 Bug fixed:
     - Nchar strings sometimes were wrongly truncated on Window
diff --git a/src/inc/tsdb.h b/src/inc/tsdb.h
index ea356a257a31dea67ccf7b06dcb057d02adeba93..8b057654c68a4c8f39bf541e07f1e171ebed0091 100644
--- a/src/inc/tsdb.h
+++ b/src/inc/tsdb.h
@@ -147,7 +147,10 @@ extern "C" {
 #define TSDB_MAX_MGMT_IPS         (TSDB_MAX_MPEERS+1)
 
 #define TSDB_REPLICA_MIN_NUM      1
-#define TSDB_REPLICA_MAX_NUM      3
+/*
+ * this is defined in CMakeList.txt
+ */
+//#define TSDB_REPLICA_MAX_NUM      3
 
 #define TSDB_TBNAME_COLUMN_INDEX       (-1)
 #define TSDB_MULTI_METERMETA_MAX_NUM    100000  // maximum batch size allowed to load metermeta
diff --git a/src/util/src/version.c b/src/util/src/version.c
index 35cd40a942b3f6f74f3d1dd565130201a8e7b0f6..87426123ec8d9b307c999b34d555ce8884357c3d 100644
--- a/src/util/src/version.c
+++ b/src/util/src/version.c
@@ -1,4 +1,4 @@
 char version[64] = "1.6.4.0";
 char compatible_version[64] = "1.6.1.0";
-char gitinfo[128] = "b6e308866e315483915f4c42a2717547ed0b9d36";
-char buildinfo[512] = "Built by ubuntu at 2019-11-26 21:56";
+char gitinfo[128] = "e86237890ee9daa8f6ab64ed225a027ae63ebdfc";
+char buildinfo[512] = "Built by ubuntu at 2019-11-30 23:16";