diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index bbd333c..1d1768b 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -48,4 +48,5 @@ jobs:
         with:
           artifacts: "build/scratch-arduino-app*.zip"
           allowUpdates: true
+          prerelease: ${{ contains(github.ref_name, 'rc') }}
           token: ${{ github.token }}
diff --git a/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_basics/index.js b/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_basics/index.js
index c3085fd..f7b79ab 100644
--- a/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_basics/index.js
+++ b/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_basics/index.js
@@ -1,6 +1,7 @@
 // const formatMessage = require('../../../../../../scratch-editor/node_modules/format-message');
 const BlockType = require('../../../../../../scratch-editor/packages/scratch-vm/src/extension-support/block-type');
 const ArgumentType = require('../../../../../../scratch-editor/packages/scratch-vm/src/extension-support/argument-type');
+const formatMessage = require('../../../../../../scratch-editor/node_modules/format-message');
 const io = require('../socket.io.min.js');
 
 /**
@@ -34,14 +35,22 @@ class ArduinoBasics {
 ArduinoBasics.prototype.getInfo = function () {
   return {
     id: 'arduinobasics',
-    name: "Arduino Basics",
+    name: formatMessage({
+      id: 'arduino.basics',
+      defaultMessage: 'Arduino Basics',
+      description: 'The name of the "Arduino Basics" extension'
+    }),
     menuIconURI: menuIconURI,
     blockIconURI: iconURI,
     blocks: [
       {
         opcode: 'matrixDraw',
         blockType: BlockType.COMMAND,
-        text: 'draw [FRAME] on matrix',
+        text: formatMessage({
+              id: 'arduino.drawMatrix',
+              defaultMessage: 'show [FRAME] on matrix',
+              description: 'Draw the given frame on the LED matrix'
+          }),
         func: 'matrixDraw',
         arguments: {
           FRAME: {
diff --git a/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_modulino/index.js b/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_modulino/index.js
index adb39e0..f7300bb 100644
--- a/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_modulino/index.js
+++ b/scratch-arduino-extensions/packages/scratch-vm/src/extensions/arduino_modulino/index.js
@@ -1,5 +1,7 @@
 const BlockType = require('../../../../../../scratch-editor/packages/scratch-vm/src/extension-support/block-type');
 const ArgumentType = require('../../../../../../scratch-editor/packages/scratch-vm/src/extension-support/argument-type');
+const formatMessage = require('../../../../../../scratch-editor/node_modules/format-message');
+
 const io = require('../socket.io.min.js');
 
 
@@ -40,14 +42,22 @@ class ArduinoModulino {
 ArduinoModulino.prototype.getInfo = function () {
   return {
     id: 'arduinomodulino',
-    name: "Arduino Modulino",
+    name: formatMessage({
+      id: 'arduino.modulino',
+      defaultMessage: 'Arduino Modulino',
+      description: 'The name of the "Arduino Modulino" extension'
+    }),
     menuIconURI: menuIconURI,
     blockIconURI: iconURI,
     blocks: [
       {
         opcode: 'whenModulinoButtonsPressed',
         blockType: BlockType.HAT,
-        text: 'when modulino button [BTN] pressed',
+        text: formatMessage({
+            id: 'arduino.modulino.whenPressed',
+            defaultMessage: 'when modulino button [BTN] pressed',
+            description: 'When the specified modulino button is pressed'
+        }),
         func: 'whenModulinoButtonsPressed',
         arguments: {
           BTN: {
diff --git a/scratch-arduino-extensions/scratch-l10n/locales/editor-msgs.json b/scratch-arduino-extensions/scratch-l10n/locales/editor-msgs.json
new file mode 100644
index 0000000..ac54247
--- /dev/null
+++ b/scratch-arduino-extensions/scratch-l10n/locales/editor-msgs.json
@@ -0,0 +1,9 @@
+{
+    "it": {
+        "arduino.basics": "Arduino Base",
+        "arduino.drawMatrix": "mostra led [FRAME]",
+        
+        "arduino.modulino": "Arduino Modulino",
+        "arduino.modulino.whenPressed": "quando premi il bottone [BTN]"
+    }
+}
\ No newline at end of file
diff --git a/scratch-arduino-extensions/scripts/patch-gui.js b/scratch-arduino-extensions/scripts/patch-gui.js
index 6da7d94..444d6c5 100644
--- a/scratch-arduino-extensions/scripts/patch-gui.js
+++ b/scratch-arduino-extensions/scripts/patch-gui.js
@@ -46,8 +46,28 @@ extensions.forEach(extension => {
     fs.writeFileSync(scratchVmVirtualMachineFile, vmCode);
     process.stdout.write("done\n");
   } else process.stdout.write("skip");
+
 });
 
+process.stdout.write("\nAdding translation: ");
+const scratchl10nEditorMsgsFile = path.resolve(BaseDir,"../scratch-editor/node_modules/scratch-l10n/locales/editor-msgs.js");
+let fileContent = fs.readFileSync(scratchl10nEditorMsgsFile, "utf8");
+let match = fileContent.match(/export default (\{.*\});/s);
+if (!match) {
+  throw new Error("Could not find object in file");
+}
+let obj = eval("(" + match[1] + ")");
+fs.copyFileSync(scratchl10nEditorMsgsFile, `${scratchl10nEditorMsgsFile}.orig`);
+
+const patchedMessages = path.resolve(BaseDir,"./scratch-l10n/locales/editor-msgs.json");
+let messages = JSON.parse(fs.readFileSync(patchedMessages, "utf8"));
+for (let lang in messages) {
+  process.stdout.write(`\n\t - ${lang}`);
+  obj[lang] = { ...obj[lang], ...messages[lang] };
+}
+let updatedContent = "export default " + JSON.stringify(obj, null, 2) + ";";
+fs.writeFileSync(scratchl10nEditorMsgsFile, updatedContent);
+