diff --git a/cmake/version.inc b/cmake/version.inc
index 261e3e8162f1bae6498f6edc09f23cb243e1f5c2..30b69c2401e2facac8708fdabb83a885cb50cd31 100755
--- a/cmake/version.inc
+++ b/cmake/version.inc
@@ -4,7 +4,7 @@ PROJECT(TDengine)
 IF (DEFINED VERNUMBER)
   SET(TD_VER_NUMBER ${VERNUMBER})
 ELSE ()
-  SET(TD_VER_NUMBER "2.1.7.2")
+  SET(TD_VER_NUMBER "2.2.0.0")
 ENDIF ()
 
 IF (DEFINED VERCOMPATIBLE)
diff --git a/deps/TSZ b/deps/TSZ
index ceda5bf9fcd7836509ac97dcc0056b3f1dd48cc5..11c1060d4f917dd799ae628b131db5d6a5ef6954 160000
--- a/deps/TSZ
+++ b/deps/TSZ
@@ -1 +1 @@
-Subproject commit ceda5bf9fcd7836509ac97dcc0056b3f1dd48cc5
+Subproject commit 11c1060d4f917dd799ae628b131db5d6a5ef6954
diff --git a/packaging/tools/make_install.sh b/packaging/tools/make_install.sh
index 0849a76e31a631bae7a6ba0d6ef7ffcb58b8480b..d400d0b91a2d02e9b3e0232d67e2ed6b00cdf541 100755
--- a/packaging/tools/make_install.sh
+++ b/packaging/tools/make_install.sh
@@ -20,44 +20,33 @@ fi
 
 # Dynamic directory
 
-
 if [ "$osType" != "Darwin" ]; then
     data_dir="/var/lib/taos"
     log_dir="/var/log/taos"
-else
-    data_dir="/usr/local/var/lib/taos"
-    log_dir="/usr/local/var/log/taos"
-fi
 
-if [ "$osType" != "Darwin" ]; then
     cfg_install_dir="/etc/taos"
-else
-    cfg_install_dir="/usr/local/etc/taos"
-fi
 
-if [ "$osType" != "Darwin" ]; then
     bin_link_dir="/usr/bin"
     lib_link_dir="/usr/lib"
     lib64_link_dir="/usr/lib64"
     inc_link_dir="/usr/include"
+
+    install_main_dir="/usr/local/taos"
+
+    bin_dir="/usr/local/taos/bin"
 else
+    data_dir="/usr/local/var/lib/taos"
+    log_dir="/usr/local/var/log/taos"
+
+    cfg_install_dir="/usr/local/etc/taos"
+
     bin_link_dir="/usr/local/bin"
     lib_link_dir="/usr/local/lib"
     inc_link_dir="/usr/local/include"
-fi
 
-#install main path
-if [ "$osType" != "Darwin" ]; then
-    install_main_dir="/usr/local/taos"
-else
     install_main_dir="/usr/local/Cellar/tdengine/${verNumber}"
-fi
 
-# old bin dir
-if [ "$osType" != "Darwin" ]; then
-     bin_dir="/usr/local/taos/bin"
-else
-     bin_dir="/usr/local/Cellar/tdengine/${verNumber}/bin"
+    bin_dir="/usr/local/Cellar/tdengine/${verNumber}/bin"
 fi
 
 service_config_dir="/etc/systemd/system"
@@ -254,7 +243,10 @@ function install_lib() {
           ${csudo} ln -sf ${lib64_link_dir}/libtaos.so.1 ${lib64_link_dir}/libtaos.so
         fi
     else
-        ${csudo} cp -Rf ${binary_dir}/build/lib/libtaos.* ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
+        ${csudo} cp -Rf ${binary_dir}/build/lib/libtaos.${verNumber}.dylib ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
+
+        ${csudo} ln -sf ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.1.dylib
+        ${csudo} ln -sf ${lib_link_dir}/libtaos.1.dylib ${lib_link_dir}/libtaos.dylib
     fi
     
     install_jemalloc
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index ea5ce3bc52468d7efcc1ece78f46cbbc8c2c3a7e..e4fdae558c3282eee4d2c6d0591b01fff53a1f98 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -1,6 +1,6 @@
 name: tdengine
 base: core18
-version: '2.1.7.2'
+version: '2.2.0.0'
 icon: snap/gui/t-dengine.svg
 summary: an open-source big data platform designed and optimized for IoT. 
 description: |
@@ -72,7 +72,7 @@ parts:
       - usr/bin/taosd
       - usr/bin/taos
       - usr/bin/taosdemo
-      - usr/lib/libtaos.so.2.1.7.2
+      - usr/lib/libtaos.so.2.2.0.0
       - usr/lib/libtaos.so.1
       - usr/lib/libtaos.so
 
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index a6446a49fc8c997207fcbeb9a963e7cf4a1ae227..0239805e9c7de7d8ffb2ad3b6175792fdd6c2acf 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -2355,6 +2355,7 @@ int tscProcessRetrieveFuncRsp(SSqlObj* pSql) {
 
   parQueryInfo->pUdfInfo = pQueryInfo->pUdfInfo;   // assigned to parent sql obj.
   pQueryInfo->pUdfInfo = NULL;
+  taosReleaseRef(tscObjRef, parent->self);
   return TSDB_CODE_SUCCESS;
 }
 
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 0e414e36c884b0a1866f0a735cf235121eb63065..a71ed588dba32ffae12408b289bda21dea112f8e 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1516,6 +1516,8 @@ void tscFreeSqlObj(SSqlObj* pSql) {
     return;
   }
 
+  int64_t sid = pSql->self;
+
   tscDebug("0x%"PRIx64" start to free sqlObj", pSql->self);
 
   pSql->res.code = TSDB_CODE_TSC_QUERY_CANCELLED;
@@ -1547,6 +1549,8 @@ void tscFreeSqlObj(SSqlObj* pSql) {
   tfree(pCmd->payload);
   pCmd->allocSize = 0;
 
+  tscDebug("0x%"PRIx64" addr:%p free completed", sid, pSql);
+
   tsem_destroy(&pSql->rspSem);
   memset(pSql, 0, sizeof(*pSql));
   free(pSql);
diff --git a/src/kit/taospack/taospack.c b/src/kit/taospack/taospack.c
index ddb9e660af4b4c479c0d8bc4b8be47c9f900dfce..9e7355b42af8fe296975f78960639de0a43a4d18 100644
--- a/src/kit/taospack/taospack.c
+++ b/src/kit/taospack/taospack.c
@@ -712,6 +712,15 @@ void leakTest(){
 }
 
 #define DB_CNT 500
+void test_same_float(int algo, bool lossy){
+  float ori =  123.456789123;
+  float floats [DB_CNT];
+  for(int i=0; i< DB_CNT; i++){
+    floats[i] = ori;
+  } 
+  DoFloat(floats, DB_CNT, algo, lossy);
+}
+
 void test_same_double(int algo){
   double ori =  3.1415926;
 
@@ -721,7 +730,6 @@ void test_same_double(int algo){
   } 
 
   DoDouble(doubles, DB_CNT, algo);
-
 }
 
 #ifdef TD_TSZ
@@ -781,6 +789,10 @@ int main(int argc, char *argv[]) {
         return 0;
     }
 
+   if(strcmp(argv[1], "-samef") == 0) {
+        test_same_float(atoi(argv[2]), true);
+        return 0;
+    }
    if(strcmp(argv[1], "-samed") == 0) {
         test_same_double(atoi(argv[2]));
         return 0;
diff --git a/src/util/src/tarray.c b/src/util/src/tarray.c
index d0d126c1e4d7f2e7c0913585df6031b556291fc3..2d6c513cb57ce1d524a1fb69df68702e624ede7b 100644
--- a/src/util/src/tarray.c
+++ b/src/util/src/tarray.c
@@ -112,14 +112,15 @@ void taosArrayRemoveBatch(SArray *pArray, const int32_t* pData, int32_t numOfEle
     i += 1;
   }
 
-  assert(i == pData[numOfElems - 1] + 1);
+  assert(i == pData[numOfElems - 1] + 1 && i <= size);
 
-  int32_t dstIndex = pData[numOfElems - 1] - numOfElems + 1;
   int32_t srcIndex = pData[numOfElems - 1] + 1;
-
-  char* dst = TARRAY_GET_ELEM(pArray, dstIndex);
-  char* src = TARRAY_GET_ELEM(pArray, srcIndex);
-  memmove(dst, src, pArray->elemSize * (pArray->size - numOfElems));
+  int32_t dstIndex = pData[numOfElems - 1] - numOfElems + 1;
+  if (pArray->size - srcIndex > 0) {
+    char* dst = TARRAY_GET_ELEM(pArray, dstIndex);
+    char* src = TARRAY_GET_ELEM(pArray, srcIndex);
+    memmove(dst, src, pArray->elemSize * (pArray->size - srcIndex));
+  }
 
   pArray->size -= numOfElems;
 }
diff --git a/tests/pytest/client/version.py b/tests/pytest/client/version.py
index ca6ce69780159bd819655c9c6a0b46de5e07bc70..0dbddbe9b5d86a9abf5c102d72b7f4b3e36eceaa 100644
--- a/tests/pytest/client/version.py
+++ b/tests/pytest/client/version.py
@@ -28,20 +28,20 @@ class TDTestCase:
 
         sql = "select server_version()"
         ret = tdSql.query(sql)
-        version = tdSql.getData(0, 0)[0:3]        
-        expectedVersion_dev = "2.0"
-        expectedVersion_master = "2.1"
-        if(version == expectedVersion_dev or version == expectedVersion_master):
-            tdLog.info("sql:%s, row:%d col:%d data:%s == expect" % (sql, 0, 0, version))
+        version = floor(float(tdSql.getData(0, 0)[0:3]))        
+        expectedVersion = 2
+        if(version == expectedVersion):
+            tdLog.info("sql:%s, row:%d col:%d data:%d == expect" % (sql, 0, 0, version))
         else:
-            tdLog.exit("sql:%s, row:%d col:%d data:%s != expect:%s or %s " % (sql, 0, 0, version, expectedVersion_dev, expectedVersion_master))
+            tdLog.exit("sql:%s, row:%d col:%d data:%d != expect:%d " % (sql, 0, 0, version, expectedVersion))
 
+            
         sql = "select client_version()"
         ret = tdSql.query(sql)
         version = floor(float(tdSql.getData(0, 0)[0:3]))        
         expectedVersion = 2
         if(version == expectedVersion):
-            tdLog.info("sql:%s, row:%d col:%d data:%s == expect" % (sql, 0, 0, version))
+            tdLog.info("sql:%s, row:%d col:%d data:%d == expect" % (sql, 0, 0, version))
         else:
             tdLog.exit("sql:%s, row:%d col:%d data:%d != expect:%d " % (sql, 0, 0, version, expectedVersion))