diff --git a/data_from_portwine/scripts/functions_helper b/data_from_portwine/scripts/functions_helper
index a9bc0f9..c4cb78a 100755
--- a/data_from_portwine/scripts/functions_helper
+++ b/data_from_portwine/scripts/functions_helper
@@ -1355,20 +1355,31 @@ pw_init_db () {
 
 # SCRIPTS UPDATE
 pw_port_update () {
+    case "$BRANCH" in
+        master|stable) 
+            BRANCH_VERSION="SCRIPTS_STABLE_VERSION"
+            BRANCH="master"
+            ;;
+         devel|beta) 
+            BRANCH_VERSION="SCRIPTS_NEXT_VERSION"
+            BRANCH="devel"
+            ;;
+    esac
+
     if [ ! -f "${PORT_WINE_TMP_PATH}/scripts_ver" ] ; then
         echo "2024" > "${PORT_WINE_TMP_PATH}/scripts_ver"
     fi
     scripts_install_ver=$(head -n 1 "${PORT_WINE_TMP_PATH}/scripts_ver")
     print_info "Check update..."
-    if curl -f -s --list-only --connect-timeout 3 "https://gitlab.eterfund.ru/Castro-Fidel/PortWINE/raw/master/data_from_portwine/scripts/var" > "${PORT_WINE_TMP_PATH}/curent_var_ver"
+    if curl -f -s --list-only --connect-timeout 3 "https://gitlab.eterfund.ru/Castro-Fidel/PortWINE/raw/${BRANCH}/data_from_portwine/scripts/var" > "${PORT_WINE_TMP_PATH}/curent_var_ver"
     then
-        URL_FOR_CHANGELOG="https://gitlab.eterfund.ru/Castro-Fidel/PortWINE/raw/master/data_from_portwine"
-        URL_TO_PW_MASTER="https://gitlab.eterfund.ru/Castro-Fidel/PortWINE/-/archive/master/PortWINE-master.tar.gz"
+        URL_FOR_CHANGELOG="https://gitlab.eterfund.ru/Castro-Fidel/PortWINE/raw/${BRANCH}/data_from_portwine"
+        URL_TO_PW_BRANCH="https://gitlab.eterfund.ru/Castro-Fidel/PortWINE/-/archive/${BRANCH}/PortWINE-${BRANCH}.tar.gz"
     else
-        if curl -f -s --list-only --connect-timeout 3 "https://raw.githubusercontent.com/Castro-Fidel/PortWINE/master/data_from_portwine/scripts/var" > "${PORT_WINE_TMP_PATH}/curent_var_ver"
+        if curl -f -s --list-only --connect-timeout 3 "https://raw.githubusercontent.com/Castro-Fidel/PortWINE/${BRANCH}/data_from_portwine/scripts/var" > "${PORT_WINE_TMP_PATH}/curent_var_ver"
         then
-            URL_FOR_CHANGELOG="https://raw.githubusercontent.com/Castro-Fidel/PortWINE/master/data_from_portwine"
-            URL_TO_PW_MASTER="https://github.com/Castro-Fidel/PortWINE/archive/refs/heads/master.tar.gz"
+            URL_FOR_CHANGELOG="https://raw.githubusercontent.com/Castro-Fidel/PortWINE/${BRANCH}/data_from_portwine"
+            URL_TO_PW_BRANCH="https://github.com/Castro-Fidel/PortWINE/archive/refs/heads/${BRANCH}.tar.gz"
         else
             print_error "Unable to determine the version on the server. Skip it..."
             return 1
@@ -1378,7 +1389,7 @@ pw_port_update () {
     [[ ! -f "${PORT_WINE_TMP_PATH}/scripts_update_notifier" ]] && echo "1" > "${PORT_WINE_TMP_PATH}/scripts_update_notifier"
     read "scripts_update_not" < "${PORT_WINE_TMP_PATH}/scripts_update_notifier"
     if [[ "${scripts_update_not}" == "1" ]] ; then
-        scripts_current_ver=$(grep "SCRIPTS_NEXT_VERSION" "${PORT_WINE_TMP_PATH}/curent_var_ver" | awk -F "=" '{print $2}')
+        scripts_current_ver=$(grep "$BRANCH_VERSION" "${PORT_WINE_TMP_PATH}/curent_var_ver" | awk -F "=" '{print $2}')
         print_info "Scripts version in git = ${scripts_current_ver}"
         print_info "Scripts version local = ${scripts_install_ver}"
         if [[ ! -z "${scripts_current_ver}" ]] &&  [[ "${scripts_current_ver}" -gt "${scripts_install_ver}" ]] ; then
@@ -1412,18 +1423,18 @@ pw_port_update () {
                 "$(gettext "UPDATING NOW")")
                     echo "######################################################"
                     print_info "Update scripts..."
-                    try_remove_file "${PORT_WINE_TMP_PATH}/PortWINE-master.tar.gz"
-                    if try_download "${URL_TO_PW_MASTER}" "${PORT_WINE_TMP_PATH}/PortWINE-master.tar.gz" no_mirror ; then
-                        if unpack "${PORT_WINE_TMP_PATH}/PortWINE-master.tar.gz" "${PORT_WINE_TMP_PATH}"
+                    try_remove_file "${PORT_WINE_TMP_PATH}/PortWINE-${BRANCH}.tar.gz"
+                    if try_download "${URL_TO_PW_BRANCH}" "${PORT_WINE_TMP_PATH}/PortWINE-${BRANCH}.tar.gz" no_mirror ; then
+                        if unpack "${PORT_WINE_TMP_PATH}/PortWINE-${BRANCH}.tar.gz" "${PORT_WINE_TMP_PATH}"
                         then
                             create_new_dir "${PORT_WINE_TMP_PATH}/scripts_backup"
                             cd "${PORT_WINE_PATH}/data/" || fatal
                             tar -czpf "${PORT_WINE_TMP_PATH}/scripts_backup/scripts_v.${scripts_install_ver}.tar.gz" \
                             ./scripts ./img/gui ./locales ./themes ./changelog* ./dxvk.conf ./vkBasalt.conf ./tmp/scripts_ver
                             try_remove_dir "${PORT_WINE_PATH}/data/scripts/"
-                            cp -fr "${PORT_WINE_TMP_PATH}/PortWINE-master/data_from_portwine/"* "${PORT_WINE_PATH}/data/"
-                            try_remove_file "${PORT_WINE_TMP_PATH}/PortWINE-master.tar.gz"
-                            try_remove_dir "${PORT_WINE_TMP_PATH}/PortWINE-master/"
+                            cp -fr "${PORT_WINE_TMP_PATH}/PortWINE-${BRANCH}/data_from_portwine/"* "${PORT_WINE_PATH}/data/"
+                            try_remove_file "${PORT_WINE_TMP_PATH}/PortWINE-${BRANCH}.tar.gz"
+                            try_remove_dir "${PORT_WINE_TMP_PATH}/PortWINE-${BRANCH}/"
                             echo "${scripts_current_ver}" > "${PORT_WINE_TMP_PATH}/scripts_ver"
                             echo "Restarting PP after update..."
                             unset SKIP_CHECK_UPDATES
@@ -5002,10 +5013,10 @@ export -f change_loc
 change_mirror () {
     if [[ "$MIRROR" == "CDN" ]] ; then
         sed -i 's/="CDN"/="GITHUB"/g' "$USER_CONF"
-        yad_info "$(gettext "Mirror changed to:") GITHUB"
+        yad_info "$(gettext "Mirror changed to:")  <b>GITHUB</b>"
     else
         sed -i 's/="GITHUB"/="CDN"/g' "$USER_CONF"
-        yad_info "$(gettext "Mirror changed to:") CDN"
+        yad_info "$(gettext "Mirror changed to:")  <b>CDN</b>"
     fi
     print_info "Restarting PP for change mirror..."
     export SKIP_CHECK_UPDATES=1
@@ -5014,6 +5025,24 @@ change_mirror () {
 }
 export -f change_mirror
 
+change_branch () {
+    if [[ "$BRANCH" == "master" ]] ; then
+        sed -i 's/="master"/="devel"/g' "$USER_CONF"
+        if [[ "$MIRROR" != "GITHUB" ]] ; then
+            sed -i 's/="CDN"/="GITHUB"/g' "$USER_CONF"
+        fi
+        export MIRROR="GITHUB"
+        yad_info "$(gettext "Branch changed to:")  <b>DEVEL</b>"
+    else
+        sed -i 's/="devel"/="master"/g' "$USER_CONF"
+        yad_info "$(gettext "Branch changed to:")  <b>STABLE</b>"
+    fi
+    print_info "Restarting PP for change branch..."
+    /usr/bin/env bash -c ${pw_full_command_line[*]} &
+    exit 0
+}
+export -f change_branch
+
 change_gui_start () {
     if [[ "$PW_GUI_START" == "NOTEBOOK" ]] ; then
         sed -i 's/="NOTEBOOK"/="PANED"/g' "$USER_CONF"
diff --git a/data_from_portwine/scripts/start.sh b/data_from_portwine/scripts/start.sh
index 13a0f0e..84d6c4d 100755
--- a/data_from_portwine/scripts/start.sh
+++ b/data_from_portwine/scripts/start.sh
@@ -171,27 +171,39 @@ else
 echo 'export GUI_THEME="default"' >> "$USER_CONF"
 fi
 
+# choose branch
+if [[ -z "$BRANCH" ]] ; then
+    echo 'export BRANCH="master"' >> "$USER_CONF"
+    export BRANCH="master"
+fi
+if [[ "$BRANCH" == "master" ]]
+then print_info "Branch in used: STABLE\n"
+else print_warning "Branch in used: DEVEL\n"
+fi
+
 # choose mirror
 if [[ -z "$MIRROR" ]] \
-&& [[ "$LANGUAGE" == "ru" ]]
+&& [[ "$LANGUAGE" == "ru" ]] \
+&& [[ "$BRANCH" != "devel" ]]
 then
     echo 'export MIRROR="CDN"' >> "$USER_CONF"
-    export MIRROR="CDN"
+    MIRROR="CDN"
 elif [[ -z "$MIRROR" ]] ; then
     echo 'export MIRROR="GITHUB"' >> "$USER_CONF"
-    export MIRROR="GITHUB"
+    MIRROR="GITHUB"
 fi
+export MIRROR
 print_info "The first mirror in used: $MIRROR\n"
 
+
 if [[ "${INSTALLING_PORT}" == 1 ]] ; then
     return 0
 fi
 
 # choose gui start
 case "$PW_GUI_START" in
-       PANED) : ;;
-    NOTEBOOK) : ;;
-           *)
+    PANED|NOTEBOOK) : ;;
+    *)
               sed -i '/export PW_GUI_START=/d' "$USER_CONF"
               echo 'export PW_GUI_START="NOTEBOOK"' >> "$USER_CONF"
               export PW_GUI_START="NOTEBOOK"
@@ -560,9 +572,9 @@ else
     else NEW_MIRROR="CDN"
     fi
 
-    if [[ "$PW_GUI_START" == "NOTEBOOK" ]]
-    then NEW_PW_GUI_START="PANED"
-    else NEW_PW_GUI_START="NOTEBOOK"
+    if [[ "$BRANCH" == "master" ]]
+    then NEW_BRANCH="DEVEL"
+    else NEW_BRANCH="STABLE"
     fi
 
     orig_IFS="$IFS" && IFS=$'\n'
@@ -603,6 +615,7 @@ else
     --field="   Xterm"!"$PW_GUI_ICON_PATH/$BUTTON_SIZE_MM.png"!"":"FBTN" '@bash -c "button_click pw_start_cont_xterm"' \
     --field="   $(gettext "Credits")"!"$PW_GUI_ICON_PATH/$BUTTON_SIZE_MM.png"!"":"FBTN" '@bash -c "button_click gui_credits"' \
     --field="   $(gettext "Change mirror to") $NEW_MIRROR"!"$PW_GUI_ICON_PATH/$BUTTON_SIZE_MM.png"!"":"FBTN" '@bash -c "button_click change_mirror"' \
+    --field="   $(gettext "Change branch to") $NEW_BRANCH"!"$PW_GUI_ICON_PATH/$BUTTON_SIZE_MM.png"!"":"FBTN" '@bash -c "button_click change_branch"' \
     --field="   $(gettext "Change start gui")"!"$PW_GUI_ICON_PATH/$BUTTON_SIZE_MM.png"!"":"FBTN" '@bash -c "button_click change_gui_start"' \
     2>/dev/null &
 
@@ -767,6 +780,7 @@ fi
     open_changelog) open_changelog ;;
     change_loc) change_loc ;;
     change_mirror) change_mirror ;;
+    change_branch) change_branch ;;
     change_gui_start) change_gui_start ;;
     118) gui_edit_db ;;
     120) gui_vkbasalt ;;
diff --git a/data_from_portwine/scripts/var b/data_from_portwine/scripts/var
index 49a288b..72f073c 100755
--- a/data_from_portwine/scripts/var
+++ b/data_from_portwine/scripts/var
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 #Author: Castro-Fidel (linux-gaming.ru)
-#SCRIPTS_NEXT_VERSION=2316
-#SCRIPTS_STABLE_VERSION=2316
+#SCRIPTS_NEXT_VERSION=2317
+#SCRIPTS_STABLE_VERSION=2317
 ########################################################################
 export LANGUAGES_LIST="ru es"
 export PW_VKBASALT="0"