diff --git a/bot_modules/bd_version.py b/bot_modules/bd_version.py
new file mode 100644
index 0000000..d74dfd9
--- /dev/null
+++ b/bot_modules/bd_version.py
@@ -0,0 +1,51 @@
+# -*- coding: utf8 -*-
+# Общественное достояние, 2023, Алексей Безбородов (Alexei Bezborodov) <AlexeiBv+mirocod_platform_bot@narod.ru> 
+
+# Версия БД
+# Этот модуль нужен для того, чтобы проводить миграции на новую версию. Он записывает в БД номер текущей версии.
+
+
+from bot_sys import bot_bd, keyboard, user_access, bd_table, bot_subscribes
+from bot_modules import mod_table_operate, mod_simple_message
+
+# ---------------------------------------------------------
+# БД
+module_name = 'bd_version'
+
+table_name = module_name
+base_version_number_field = 'baseVersionNumber'
+sub_version_number_field = 'subVersionNumber'
+
+table_base_version_number_field = bd_table.TableField(base_version_number_field, bd_table.TableFieldDestiny.VERSION_NUMBER, bd_table.TableFieldType.INT)
+table_sub_version_number_field = bd_table.TableField(sub_version_number_field, bd_table.TableFieldDestiny.SUB_VERSION_NUMBER, bd_table.TableFieldType.INT)
+
+table = bd_table.Table(table_name, [
+        table_base_version_number_field,
+        table_sub_version_number_field,
+        ],
+        [
+            [table_base_version_number_field, table_sub_version_number_field],
+        ])
+
+init_access = f'{user_access.user_access_group_new}=-'
+
+# ---------------------------------------------------------
+# Сообщения и кнопки
+
+button_names = {
+}
+
+messages = {
+}
+
+class ModuleBDVersion(mod_table_operate.TableOperateModule):
+    def __init__(self, a_Bot, a_ModuleAgregator, a_BotMessages, a_BotButtons, a_BotSubscribes, a_Log):
+        super().__init__(table, messages, button_names, None, None, init_access, None, None, a_Bot, a_ModuleAgregator, a_BotMessages, a_BotButtons, a_BotSubscribes, a_Log)
+
+    def GetName(self):
+        return module_name
+
+    def GetInitBDCommands(self):
+        return super(). GetInitBDCommands() + [
+            f"INSERT OR IGNORE INTO {table_name} ({base_version_number_field}, {sub_version_number_field}) VALUES ('{1}', '{0}');"
+            ]
diff --git a/bot_modules/mod_simple_message.py b/bot_modules/mod_simple_message.py
index 0221977..a533a9d 100644
--- a/bot_modules/mod_simple_message.py
+++ b/bot_modules/mod_simple_message.py
@@ -84,6 +84,8 @@ class SimpleMessageModule(mod_interface.IModule):
 
     def GetButtons(self, a_ModNameList):
         buttons = []
+        if not a_ModNameList:
+            return buttons
         for n in a_ModNameList:
             m = self.m_ModuleAgregator.GetModule(n)
             b = m.GetModuleButtons()
diff --git a/bot_sys/bd_table.py b/bot_sys/bd_table.py
index 7820abf..593b146 100644
--- a/bot_sys/bd_table.py
+++ b/bot_sys/bd_table.py
@@ -36,6 +36,8 @@ class TableFieldDestiny(Enum):
     ITEM_ID = auto()
     ADDRESS = auto()
     OTHER = auto()
+    VERSION_NUMBER = auto()
+    SUB_VERSION_NUMBER = auto()
 
 class TableField:
     def __init__(self, a_Name, a_Destiny : TableFieldDestiny, a_Type : TableFieldType, a_Enum = None):
diff --git a/main.py b/main.py
index 9675156..3ed4e1f 100644
--- a/main.py
+++ b/main.py
@@ -7,6 +7,7 @@ from bot_sys import config, log, aiogram_bot, bot_messages, bd_table, user_acces
 from bot_modules import mod_agregator, start, profile, backup, users_groups_agregator, access, projects, tasks, needs, comments
 from bot_modules import languages, messages, buttons, users, groups, user_in_groups
 from bot_modules import orders, all_orders
+from bot_modules import bd_version
 
 from bot_sys import bot_subscribes
 from bot_modules import subscribes
@@ -106,6 +107,9 @@ child_mod_name_list = [mod_start_name]
 mod_subscribe = subscribes.ModuleUserSubscribe(None, None, child_mod_name_list, start_mod_list, g_Bot, g_ModuleAgregator, g_BotMessages, g_BotButtons, g_BotSubscribes, g_Log)
 g_ModuleAgregator.AddModule(mod_subscribe)
 
+mod_bd_version = bd_version.ModuleBDVersion(g_Bot, g_ModuleAgregator, g_BotMessages, g_BotButtons, g_BotSubscribes, g_Log)
+g_ModuleAgregator.AddModule(mod_bd_version)
+
 child_mod_name_list = [
         mod_profile.GetName(),
         mod_backup.GetName(),
@@ -116,6 +120,7 @@ child_mod_name_list = [
         mod_orders.GetName(),
         mod_all_orders.GetName(),
         mod_subscribe.GetName(),
+        mod_bd_version.GetName(),
         ]
 mod_start = start.ModuleStart(child_mod_name_list, g_Bot, g_ModuleAgregator, g_BotMessages, g_BotButtons, g_BotSubscribes, g_Log)
 g_ModuleAgregator.AddModule(mod_start)