diff --git a/docs/USAGE.md b/docs/USAGE.md
index ec7f098d..45af0fd3 100644
--- a/docs/USAGE.md
+++ b/docs/USAGE.md
@@ -24,9 +24,16 @@ If you have any issues, questions or an idea for additional features, please tak
 ## Latest Changes
 
 ::: tip State of this document
-This documentation refers to release [v3.8.1](https://github.com/openhab/openhab-google-assistant/releases/tag/v3.8.1) of [openHAB Google Assistant](https://github.com/openhab/openhab-google-assistant) published on 2023-11-26
+This documentation refers to release [v3.9.0](https://github.com/openhab/openhab-google-assistant/releases/tag/v3.9.0) of [openHAB Google Assistant](https://github.com/openhab/openhab-google-assistant) published on 2024-01-29
 :::
 
+### v3.9.0
+
+- Prepared available configuration options for the upcoming rollout of v4
+- Users can start adjusting their setup to use the new configuration options:
+  - [`Thermostat`](#thermostat): `modes` has been renamed to `thermostatModes`
+  - [`Fan`](#fan-hood-airpurifier): `speeds` has been renamed to `fanSpeeds`
+
 ### v3.8.0
 
 - Added `colorTemperatureInverted=true` option to [`SpecialColorLight`](#light-as-group-with-separate-controls) allowing users to invert the percentage to Kelvin conversion for the `lightColorTemperature` item
diff --git a/functions/package-lock.json b/functions/package-lock.json
index 5b491f07..401aebb0 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "openhab.google-assistant-smarthome.cloud-function",
-  "version": "3.8.1",
+  "version": "3.9.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "openhab.google-assistant-smarthome.cloud-function",
-      "version": "3.8.1",
+      "version": "3.9.0",
       "license": "EPL-2.0",
       "dependencies": {
         "actions-on-google": "^3.0.0"
diff --git a/functions/package.json b/functions/package.json
index b9bfddb2..7b1bb9c7 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openhab.google-assistant-smarthome.cloud-function",
-  "version": "3.8.1",
+  "version": "3.9.0",
   "description": "A Google Assistant, Actions on Google based implementation for openHAB",
   "repository": {
     "type": "git",
diff --git a/package-lock.json b/package-lock.json
index 09e9439c..2cf3d421 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "openhab.google-assistant-smarthome",
-  "version": "3.8.1",
+  "version": "3.9.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "openhab.google-assistant-smarthome",
-      "version": "3.8.1",
+      "version": "3.9.0",
       "license": "EPL-2.0",
       "dependencies": {
         "express": "^4.18.2"
diff --git a/package.json b/package.json
index 9e7dd111..51f963a1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openhab.google-assistant-smarthome",
-  "version": "3.8.1",
+  "version": "3.9.0",
   "description": "A Google Assistant, Actions on Google based implementation for openHAB",
   "main": "functions/index.js",
   "repository": {