diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
new file mode 100644
index 000000000..97754609a
--- /dev/null
+++ b/.github/workflows/release.yaml
@@ -0,0 +1,48 @@
+name: release
+
+on:
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+*"
+
+jobs:
+  core-release-from-tag:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          submodules: 'recursive'
+
+      - name : Get the toolchain
+        run: |
+         wget -O /opt/gcc-arm-none-eabi-9-2019-q4-major-x86_64-linux.tar.bz2 https://developer.arm.com/-/media/files/downloads/gnu-rm/9-2019q4/gcc-arm-none-eabi-9-2019-q4-major-x86_64-linux.tar.bz2
+         tar -xjf /opt/gcc-arm-none-eabi-9-2019-q4-major-x86_64-linux.tar.bz2 -C /opt/
+
+      - name: Setup build tools
+        run: |
+          sudo apt-get install -y git mercurial
+
+      - name: Set core version
+        run: echo "TAG_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+
+      - name: Get repo name
+        run: echo "REPOSITORY_NAME=$(echo ${{ github.repository }} | cut -d "/" -f2-)" >> $GITHUB_ENV
+
+      - name: Build the core
+        run: |
+          export PATH=$PATH:/opt/gcc-arm-none-eabi-9-2019-q4-major/bin/
+          extras/package.sh $TAG_VERSION
+
+      - name: Save core packages as artifact
+        uses: actions/upload-artifact@v7
+        with:
+          name: ArduinoCore-renesas-packages
+          path: ./*.tar.bz2
+
+      - name: Save core json as artifact
+        uses: actions/upload-artifact@v7
+        with:
+          name: ArduinoCore-renesas-json
+          path: ./*.json
diff --git a/.gitmodules b/.gitmodules
index 5f1808f7a..994995b28 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -15,7 +15,7 @@
 	url = https://github.com/bcmi-labs/mbedtls
 [submodule "extras/net/lwip"]
 	path = extras/net/lwip
-	url = https://git.savannah.nongnu.org/git/lwip.git
+	url = https://github.com/lwip-tcpip/lwip.git
 [submodule "libraries/WiFi/extra/esptool"]
 	path = libraries/WiFi/extra/esptool
 	url = https://github.com/espressif/esptool.git
diff --git a/extras/package.sh b/extras/package.sh
index abb368d25..540691cc7 100755
--- a/extras/package.sh
+++ b/extras/package.sh
@@ -1,15 +1,16 @@
 #!/bin/bash
 
+VERSION=$1
+
 if [ ! -f platform.txt ]; then
   echo Launch this script from the root core folder as ./extras/package.sh
   exit 2
 fi
 
 if [ ! -d ../ArduinoCore-API ]; then
-  git clone git@github.com:arduino/ArduinoCore-API.git ../ArduinoCore-API
+  git clone https://github.com/arduino/ArduinoCore-API.git ../ArduinoCore-API
 fi
 
-VERSION=`cat platform.txt | grep "version=" | cut -f2 -d"="`
 echo $VERSION
 
 #portenta
@@ -22,6 +23,7 @@ FILENAME=ArduinoCore-renesas_$VARIANT-$VERSION.tar.bz2
 git checkout boards.txt
 git checkout platform.txt
 
+sed -i "s/9.9.9/$VERSION/g" platform.txt
 sed -i 's/nanor4./#nanor4./g' boards.txt
 sed -i 's/minima./#minima./g' boards.txt
 sed -i 's/unor4wifi./#unor4wifi./g' boards.txt
@@ -57,6 +59,7 @@ FILENAME=ArduinoCore-renesas_$VARIANT-$VERSION.tar.bz2
 git checkout boards.txt
 git checkout platform.txt
 
+sed -i "s/9.9.9/$VERSION/g" platform.txt
 sed -i 's/portenta_c33./#portenta_c33./g' boards.txt
 sed -i 's/muxto./#muxto./g' boards.txt
 sed -i 's/opta_/#opta_/g' boards.txt
@@ -83,4 +86,4 @@ sed "s/%%SIZE_UNO%%/${SIZE}/" > package_renesas_${VERSION}_index.json
 cat package_renesas_${VERSION}_index.json
 
 git checkout boards.txt
-git checkout platform.txt
\ No newline at end of file
+git checkout platform.txt
diff --git a/extras/package_index.json.template b/extras/package_index.json.template
index 683159083..4f7d0bb72 100644
--- a/extras/package_index.json.template
+++ b/extras/package_index.json.template
@@ -27,6 +27,9 @@
             },
             {
               "name": "Arduino UNO R4 WiFi"
+            },
+            {
+              "name": "Arduino Nano R4"
             }
           ],
           "toolsDependencies": [
diff --git a/platform.txt b/platform.txt
index bdedb5bc5..6481618a4 100644
--- a/platform.txt
+++ b/platform.txt
@@ -3,7 +3,7 @@
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5---3rd-party-Hardware-specification
 
 name=Arduino Renesas fsp Boards
-version=1.5.3
+version=9.9.9
 
 # Compile variables
 # ------------------------