diff --git a/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_DYNAMIC/cfg/sbconf.h b/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_DYNAMIC/cfg/sbconf.h
new file mode 100644
index 000000000..94ea0cdba
--- /dev/null
+++ b/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_DYNAMIC/cfg/sbconf.h
@@ -0,0 +1,50 @@
+/*
+    ChibiOS - Copyright (C) 2006..2020 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    sb/templates/sbconf.h
+ * @brief   Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ *          contains the application specific kernel settings.
+ *
+ * @addtogroup SB_CONFIG
+ * @details Sandboxes-related settings and hooks.
+ * @{
+ */
+
+#ifndef SBCONF_H
+#define SBCONF_H
+
+#define __CHIBIOS_SB_CONF__
+#define __CHIBIOS_SB_CONF_VER_3_0__
+
+/**
+ * @brief   Number of memory regions for each sandbox.
+ */
+#if !defined(SB_CFG_NUM_REGIONS) || defined(__DOXYGEN__)
+#define SB_CFG_NUM_REGIONS                  2
+#endif
+
+/**
+ * @brief   Enables Posix API in sandboxes using VFS.
+ */
+#if !defined(SB_CFG_ENABLE_VFS) || defined(__DOXYGEN__)
+#define SB_CFG_ENABLE_VFS                   TRUE
+#endif
+
+#endif  /* SBCONF_H */
+
+/** @} */
diff --git a/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_STATIC/cfg/sbconf.h b/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_STATIC/cfg/sbconf.h
new file mode 100644
index 000000000..94ea0cdba
--- /dev/null
+++ b/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_STATIC/cfg/sbconf.h
@@ -0,0 +1,50 @@
+/*
+    ChibiOS - Copyright (C) 2006..2020 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    sb/templates/sbconf.h
+ * @brief   Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ *          contains the application specific kernel settings.
+ *
+ * @addtogroup SB_CONFIG
+ * @details Sandboxes-related settings and hooks.
+ * @{
+ */
+
+#ifndef SBCONF_H
+#define SBCONF_H
+
+#define __CHIBIOS_SB_CONF__
+#define __CHIBIOS_SB_CONF_VER_3_0__
+
+/**
+ * @brief   Number of memory regions for each sandbox.
+ */
+#if !defined(SB_CFG_NUM_REGIONS) || defined(__DOXYGEN__)
+#define SB_CFG_NUM_REGIONS                  2
+#endif
+
+/**
+ * @brief   Enables Posix API in sandboxes using VFS.
+ */
+#if !defined(SB_CFG_ENABLE_VFS) || defined(__DOXYGEN__)
+#define SB_CFG_ENABLE_VFS                   TRUE
+#endif
+
+#endif  /* SBCONF_H */
+
+/** @} */
diff --git a/os/sb/host/sb.h b/os/sb/host/sb.h
index 9219d9444..3f72f3238 100644
--- a/os/sb/host/sb.h
+++ b/os/sb/host/sb.h
@@ -49,17 +49,17 @@
 /**
  * @brief   Safety Extensions version string.
  */
-#define CH_SB_VERSION           "2.1.0"
+#define CH_SB_VERSION           "3.0.0"
 
 /**
  * @brief   Safety Extensions version major number.
  */
-#define CH_SB_MAJOR             2
+#define CH_SB_MAJOR             3
 
 /**
  * @brief   Safety Extensions version minor number.
  */
-#define CH_SB_MINOR             1
+#define CH_SB_MINOR             0
 
 /**
  * @brief   Safety Extensions version patch number.
@@ -71,24 +71,29 @@
 /* Module pre-compile time settings.                                         */
 /*===========================================================================*/
 
-/**
- * @brief   Number of memory regions for each sandbox.
- */
-#if !defined(SB_CFG_NUM_REGIONS) || defined(__DOXYGEN__)
-#define SB_CFG_NUM_REGIONS                  2
-#endif
-
-/**
- * @brief   Enables Posix API in sandboxes using VFS.
- */
-#if !defined(SB_CFG_ENABLE_VFS) || defined(__DOXYGEN__)
-#define SB_CFG_ENABLE_VFS                   TRUE
-#endif
+#include "sbconf.h"
 
 /*===========================================================================*/
 /* Derived constants and error checks.                                       */
 /*===========================================================================*/
 
+#if !defined(__CHIBIOS_SB_CONF__)
+#error "missing or wrong configuration file"
+#endif
+
+#if !defined(__CHIBIOS_SB_CONF_VER_3_0__)
+#error "obsolete or unknown configuration file"
+#endif
+
+/* Checks on configuration options.*/
+#if !defined(SB_CFG_NUM_REGIONS) || defined(__DOXYGEN__)
+#error "SB_CFG_NUM_REGIONS not defined in sbconf.h"
+#endif
+
+#if !defined(SB_CFG_ENABLE_VFS) || defined(__DOXYGEN__)
+#error "SB_CFG_ENABLE_VFS not defined in sbconf.h"
+#endif
+
 /* License checks.*/
 #if !defined(CH_CUSTOMER_LIC_SB) || !defined(CH_LICENSE_FEATURES)
 #error "malformed chlicense.h"