diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0aa4739914aff0d44c4d165dd3188682ac2ce355..07068eb61787d3b7096cbeece589f776bd8bc171 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,8 @@ set(CMAKE_C_STANDARD 11)
 SET( CPACK_PACKAGE_NAME  "${PROJECT_NAME}")
 SET( CPACK_PACKAGE_VERSION_MAJOR 4)
 SET( CPACK_PACKAGE_VERSION_MINOR 0)
-SET( CPACK_PACKAGE_VERSION_PATCH 19)
+SET( CPACK_PACKAGE_VERSION_PATCH 20)
+
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index e6ace6873dc568d57b7f1eacc0695555f80ff65e..f9a003f2191d47df3e72b0cfaaac8669d5975d35 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit e6ace6873dc568d57b7f1eacc0695555f80ff65e
+Subproject commit f9a003f2191d47df3e72b0cfaaac8669d5975d35
diff --git a/python-cellframe b/python-cellframe
index ac3fd0eccada33cef23da71d861e8d112fb531de..8409f94041028ab58b859b112894d9f37bcb9682 160000
--- a/python-cellframe
+++ b/python-cellframe
@@ -1 +1 @@
-Subproject commit ac3fd0eccada33cef23da71d861e8d112fb531de
+Subproject commit 8409f94041028ab58b859b112894d9f37bcb9682
diff --git a/sources/main.c b/sources/main.c
index 56374fd17c40369e2c31c683144367669d8b0503..ad3f32163f1c3b5d740ebe54f75af12266b3bde1 100755
--- a/sources/main.c
+++ b/sources/main.c
@@ -383,10 +383,8 @@ int main( int argc, const char **argv )
     }
 #endif
 
-    if (dap_chain_node_mempool_init()) {
-        log_it( L_CRITICAL, "Can't init automatic mempool processing" );
-        return -13;
-    }
+    log_it(L_INFO, "Automatic mempool processing %s",
+           dap_chain_node_mempool_autoproc_init() ? "enabled" : "disabled");
 
     save_process_pid_in_file(s_pid_file_path);
 
@@ -494,7 +492,7 @@ int main( int argc, const char **argv )
 	dap_http_deinit();
 	if (bServerEnabled) dap_server_deinit();
 	dap_enc_ks_deinit();
-    dap_chain_node_mempool_deinit();
+    dap_chain_node_mempool_autoproc_deinit();
     dap_chain_net_srv_xchange_deinit();
     dap_chain_net_srv_stake_deinit();