diff --git a/debian/changelog b/debian/changelog
index 643a8e9..48d837e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+mce-dev (1.23.0) unstable; urgency=low
+
+  * [mce] Add button backlight policy related D-Bus constants. JB#39838
+
+ -- Simo Piiroinen <simo.piiroinen@jollamobile.com>  Fri, 06 Oct 2017 06:35:37 +0300
+
 mce-dev (1.22.0) unstable; urgency=low
 
   * [mce] Add input policy related D-Bus constants. JB#38001
diff --git a/include/mce/dbus-names.h b/include/mce/dbus-names.h
index d0ad1f1..4a720d5 100644
--- a/include/mce/dbus-names.h
+++ b/include/mce/dbus-names.h
@@ -844,5 +844,45 @@
  */
 #define MCE_VOLKEY_INPUT_POLICY_SIG     "keypad_input_policy_ind"
 
+/*@}*/
+
+/**
+ * @name Button backlight policy D-Bus methods and signals
+ */
+
+/*@{*/
+
+/** Get current button backlight state
+ *
+ * Returns true when button backlight is lit, false otherwise.
+ *
+ * @since v1.90.0
+ *
+ * @return button backlight state as DBUS_TYPE_BOOLEAN
+ */
+#define MCE_BUTTON_BACKLIGHT_GET        "get_button_backlight"
+
+/** Request button backlight state change
+ *
+ * The button backlight is lit when policy permits is, at least one
+ * D-Bus client has requested it, and the required control file
+ * configuration has been provided.
+ *
+ * @since v1.90.0
+ *
+ * @param state DBUS_TYPE_BOOLEAN
+ */
+#define MCE_BUTTON_BACKLIGHT_CHANGE_REQ "req_button_backlight_change"
+
+/** Indication for change of button backlight state
+ *
+ * The state is true when button backlight is lit, false otherwise.
+ *
+ * @since v1.90.0
+ *
+ * @param state button backlight state as DBUS_TYPE_BOOLEAN
+ */
+#define MCE_BUTTON_BACKLIGHT_SIG        "sig_button_backlight_ind"
+
 /*@}*/
 #endif /* _MCE_DBUS_NAMES_H_ */
diff --git a/mce.pc b/mce.pc
index 25a7772..643aee8 100644
--- a/mce.pc
+++ b/mce.pc
@@ -3,7 +3,7 @@ includedir=${prefix}/include
 
 Name: mce
 Description: Mode Control Entity
-Version: 1.22.0
+Version: 1.23.0
 Requires:
 Libs:
 Cflags: -I${includedir}
diff --git a/rpm/mce-headers.spec b/rpm/mce-headers.spec
index b9423a5..bf24e1d 100644
--- a/rpm/mce-headers.spec
+++ b/rpm/mce-headers.spec
@@ -1,6 +1,6 @@
 Name:       mce-headers
 Summary:    Development files for mce
-Version:    1.22.0
+Version:    1.23.0
 Release:    1
 Group:      Development/Libraries
 License:    LGPLv2