diff --git a/README.md b/README.md
index 82655d32c..63a1c4801 100644
--- a/README.md
+++ b/README.md
@@ -58,11 +58,15 @@ If you have already cloned the repo and forgot to pass `--recurse-submodules`, e
 
 ```
 sudo apt update
-sudo apt install autoconf build-essential cmake libprocps-dev libtool texinfo wget yasm flex bison btrfs-progs 
+sudo apt install autoconf build-essential cmake libprocps-dev libtool texinfo wget yasm flex bison btrfs-progs python python3-pip gawk git vim doxygen 
 sudo apt install make build-essential cmake pkg-config libgnutls28-dev libssl-dev unzip zlib1g-dev libgcrypt20-dev docker.io gcc-9 g++-9 gperf clang-format-11 gnutls-dev
+sudo apt install nettle-dev libhiredis-dev redis-server google-perftools libgoogle-perftools-dev lcov
 ```
 
-NB cmake needs to be of version >=3.31, git of version >=2.18
+
+
+
+NB cmake needs to be of version >=3.21, git of version >=2.18
 
 ### (for Ubuntu 20.10 or later) Set  gcc-9 as default compiler
 ```
@@ -74,14 +78,15 @@ sudo update-alternatives --install /usr/bin/gcov-tool gcov-tool /usr/bin/gcov-to
 gcc --version
 ```
 
-### Build dependencies
+# Install latest cmake 
 
 ```
-cd deps
-./build.sh
+sudo apt-get purge cmake
+sudo snap install cmake --classic
 ```
 
-or, if you want to build debug version of skaled
+
+### Build dependencies
 
 ```
 cd deps
@@ -107,8 +112,6 @@ cmake -H. -Bbuild -DCMAKE_BUILD_TYPE=Debug
 cmake --build build -- -j$(nproc)
 ```
 
-Note: Currently only Debug build is supported.
-
 
 ## Testing
 
diff --git a/deps/build.sh b/deps/build.sh
index f8a184049..16f35d527 100755
--- a/deps/build.sh
+++ b/deps/build.sh
@@ -932,13 +932,8 @@ then
 		cd "$SOURCES_ROOT"
 		if [ ! -d "libiconv-1.15" ];
 		then
-			if [ ! -f "libiconv-1.15.tar.gz" ];
-			then
-				echo -e "${COLOR_INFO}downloading it${COLOR_DOTS}...${COLOR_RESET}"
-				eval "$WGET" --no-check-certificate https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.15.tar.gz
-			fi
 			echo -e "${COLOR_INFO}unpacking it${COLOR_DOTS}...${COLOR_RESET}"
-			eval tar -xzf libiconv-1.15.tar.gz
+			eval tar -xzf "$PREDOWNLOADED_ROOT/libiconv-1.15.tar.gz"
 			echo -e "${COLOR_INFO}configuring it${COLOR_DOTS}...${COLOR_RESET}"
 			cd libiconv-1.15
 			eval ./configure "${CONF_CROSSCOMPILING_OPTS_GENERIC}" --enable-static --disable-shared --prefix="$INSTALL_ROOT" "${CONF_DEBUG_OPTIONS}"
diff --git a/deps/pre_downloaded/libiconv-1.15.tar.gz b/deps/pre_downloaded/libiconv-1.15.tar.gz
new file mode 100644
index 000000000..abdb6a4f1
Binary files /dev/null and b/deps/pre_downloaded/libiconv-1.15.tar.gz differ
diff --git a/libdevcore/Common.cpp b/libdevcore/Common.cpp
index 9828da2cc..ec4c0bc53 100644
--- a/libdevcore/Common.cpp
+++ b/libdevcore/Common.cpp
@@ -165,8 +165,8 @@ void ExitHandler::exitHandler( int nSignalNo, ExitHandler::exit_code_t ec ) {
         s_ec = ec;
     }
 
-    // indicate failure if signal is not INT or TERM!
-    if ( s_ec == ec_success && nSignalNo != SIGINT && nSignalNo != SIGTERM )
+    // indicate failure if signal is not INT or TERM or internal (-1)
+    if ( s_ec == ec_success && nSignalNo > 0 && nSignalNo != SIGINT && nSignalNo != SIGTERM )
         s_ec = ExitHandler::ec_failure;
 
     s_bStop = true;
diff --git a/libskutils/include/skutils/stats.h b/libskutils/include/skutils/stats.h
index 79650c733..3600d637b 100644
--- a/libskutils/include/skutils/stats.h
+++ b/libskutils/include/skutils/stats.h
@@ -220,7 +220,7 @@ class element : public skutils::ref_retain_release {
     element( const char* strSubSystem, const char* strProtocol, const char* strMethod,
         int /*nServerIndex*/, int /*ipVer*/ );
     virtual ~element();
-    void stop() const;
+    void stop();
     void setMethod( const char* strMethod ) const;
     void setError() const;
     double getDurationInSeconds() const;
diff --git a/libskutils/src/stats.cpp b/libskutils/src/stats.cpp
index 2d0814992..d77dcbd20 100644
--- a/libskutils/src/stats.cpp
+++ b/libskutils/src/stats.cpp
@@ -405,7 +405,6 @@ element::element( const char* strSubSystem, const char* strProtocol, const char*
         strProtocol_ = "N/A";
     if ( strMethod_.empty() )
         strMethod_ = g_strMethodNameUnknown;
-    do_register();
 }
 element::~element() {
     stop();
@@ -420,12 +419,13 @@ void element::do_unregister() {
     queue::getQueueForSubsystem( strSubSystem_.c_str() ).do_unregister( rttElement );
 }
 
-void element::stop() const {
+void element::stop() {
     lock_type lock( mtx() );
     if ( isStopped_ )
         return;
     isStopped_ = true;
     tpEnd_ = skutils::stats::clock::now();
+    do_register();
 }
 
 void element::setMethod( const char* strMethod ) const {