diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7415efdc971a108d3b1b386a84cb64f7a871d177..17bc908c3acf946aef0c93a80bd046b130c48fcb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ set(CMAKE_C_STANDARD 11)
 SET( CPACK_PACKAGE_NAME  "${PROJECT_NAME}")
 SET( CPACK_PACKAGE_VERSION_MAJOR 4)
 SET( CPACK_PACKAGE_VERSION_MINOR 4)
-SET( CPACK_PACKAGE_VERSION_PATCH 25)
+SET( CPACK_PACKAGE_VERSION_PATCH 26)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}-${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index f5fc13b5e9e9e4ebcea359e2ee1a177391d00d2f..5fcf68baef46413692d4975433a6235547916f9a 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit f5fc13b5e9e9e4ebcea359e2ee1a177391d00d2f
+Subproject commit 5fcf68baef46413692d4975433a6235547916f9a
diff --git a/sources/main.c b/sources/main.c
index 1f402d6a4c0bd41d02e77cf9d92b3e02cce429d0..7528103da00c1c4b02a373274c70695d74bc8398 100755
--- a/sources/main.c
+++ b/sources/main.c
@@ -86,8 +86,6 @@
 
 #ifdef DAP_OS_LINUX
 #include "dap_chain_net_srv_vpn.h"
-#include "dap_chain_net_srv_vpn_cdb.h"
-#include "dap_chain_net_srv_vpn_cdb_server_list.h"
 #include "dap_chain_net_vpn_client.h"
 #endif
 
@@ -484,12 +482,12 @@ int main( int argc, const char **argv )
     }
 
 
-
+    //dap_chain_net_vpn_client_check(dap_chain_net_by_name("kelvin-testnet"), "161.35.145.253", NULL, 80, -1, -1, -1);
+    //dap_chain_net_vpn_client_check(dap_chain_net_by_name("kelvin-testnet"), "135.181.37.253", NULL, 80, -1, -1, -1);
+    //dap_chain_net_vpn_client_check(dap_chain_net_by_name("kelvin-testnet"), "164.90.189.80", NULL, 80, -1, -1, -1);
 
     //dap_chain_net_load_all();
 
-
-
     //Init python plugins
     #ifdef DAP_SUPPORT_PYTHON_PLUGINS
         log_it(L_NOTICE, "Loading python plugins");
@@ -517,6 +515,7 @@ int main( int argc, const char **argv )
     dap_chain_net_srv_xchange_deinit();
     dap_chain_net_srv_stake_deinit();
     dap_chain_net_deinit();
+    dap_modules_dynamic_close_cdb();
     dap_chain_global_db_deinit();
     dap_chain_deinit();
 	dap_config_close( g_config );
diff --git a/sources/sig_unix_handler.c b/sources/sig_unix_handler.c
index c5d5bead16a7f95d4d994c072878df93abca4db2..4e6c203c1e6b8b7ce7c347d830b3ce931accff46 100644
--- a/sources/sig_unix_handler.c
+++ b/sources/sig_unix_handler.c
@@ -17,6 +17,7 @@
 #include "dap_http.h"
 #include "dap_chain_node_dns_server.h"
 #include "sig_unix_handler.h"
+#include "dap_modules_dynamic_cdb.h"
 
 #define LOG_TAG "sig_unix_handler"
 
@@ -49,6 +50,7 @@ static void sig_exit_handler(int sig_code) {
     dap_enc_ks_deinit();
     enc_http_deinit();
     dap_http_deinit();
+    dap_modules_dynamic_close_cdb();
     dap_dns_server_stop();
     dap_server_deinit();
     dap_events_stop_all();