diff --git a/.github/workflows/update-server.yml b/.github/workflows/update-server.yml
index 4d4fc97..cc34448 100644
--- a/.github/workflows/update-server.yml
+++ b/.github/workflows/update-server.yml
@@ -121,9 +121,32 @@ jobs:
 
           MAJOR=$(echo "$VERSION" | awk -F. '{print $1}')
           RELEASE_TAG="v${MAJOR}"
-          DOWNLOAD_URL="https://github.com/${REPO}/releases/download/${RELEASE_TAG}/${EXT_ELEMENT}-${VERSION}.zip"
+          PACKAGE_NAME="${EXT_ELEMENT}-${DISPLAY_VERSION}.zip"
+          DOWNLOAD_URL="https://github.com/${REPO}/releases/download/${RELEASE_TAG}/${PACKAGE_NAME}"
           INFO_URL="https://github.com/${REPO}"
 
+          # ── Build install-ready ZIP ─────────────────────────────────
+          SOURCE_DIR="src"
+          [ ! -d "$SOURCE_DIR" ] && SOURCE_DIR="htdocs"
+          if [ -d "$SOURCE_DIR" ]; then
+            cd "$SOURCE_DIR"
+            zip -r "/tmp/${PACKAGE_NAME}" .
+            cd ..
+
+            SHA256=$(sha256sum "/tmp/${PACKAGE_NAME}" | cut -d' ' -f1)
+
+            # Ensure draft release exists for this major
+            gh release view "$RELEASE_TAG" --json tagName > /dev/null 2>&1 || \
+              gh release create "$RELEASE_TAG" --title "v${MAJOR}" --notes "Development release" --draft --target main 2>/dev/null || true
+
+            # Upload ZIP to the major release
+            gh release upload "$RELEASE_TAG" "/tmp/${PACKAGE_NAME}" --clobber 2>/dev/null || true
+
+            echo "Package: ${PACKAGE_NAME} (SHA: ${SHA256})" >> $GITHUB_STEP_SUMMARY
+          else
+            SHA256=""
+          fi
+
           # ── Build the new entry ───────────────────────────────────────
           NEW_ENTRY=$(cat <<XMLEOF
   <update>
@@ -141,6 +164,7 @@ jobs:
     <downloads>
       <downloadurl type="full" format="zip">${DOWNLOAD_URL}</downloadurl>
     </downloads>
+    $([ -n "$SHA256" ] && echo "    <sha256>sha256:${SHA256}</sha256>")
     ${TARGET_PLATFORM}
     $([ -n "$PHP_TAG" ] && echo "    ${PHP_TAG}")
     <maintainer>Moko Consulting</maintainer>