diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7079cb7..470b367 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -407,3 +407,31 @@ jobs:
               --title "DSH Desktop $RELEASE_TAG" \
               --repo "$GITHUB_REPOSITORY"
           fi
+      - name: Mirror release assets to Tencent COS
+        env:
+          COS_SECRET_ID: ${{ secrets.COS_SECRET_ID }}
+          COS_SECRET_KEY: ${{ secrets.COS_SECRET_KEY }}
+          COS_BUCKET: ${{ vars.COS_BUCKET }}
+          COS_REGION: ${{ vars.COS_REGION }}
+          RELEASE_TAG: ${{ github.ref_name }}
+        run: |
+          set -euo pipefail
+          test -n "$COS_SECRET_ID" && test -n "$COS_SECRET_KEY" || { echo "::error::Missing secrets COS_SECRET_ID/COS_SECRET_KEY"; exit 1; }
+          test -n "$COS_BUCKET" && test -n "$COS_REGION" || { echo "::error::Missing variables COS_BUCKET/COS_REGION"; exit 1; }
+          curl -sSfL -o coscli https://github.com/tencentyun/coscli/releases/download/v1.0.8/coscli-v1.0.8-linux-amd64
+          chmod +x coscli
+          cat > "$HOME/.cos.yaml" <<EOF
+          cos:
+            base:
+              secretid: ${COS_SECRET_ID}
+              secretkey: ${COS_SECRET_KEY}
+              sessiontoken: ""
+              protocol: https
+            buckets:
+            - name: ${COS_BUCKET}
+              endpoint: cos.${COS_REGION}.myqcloud.com
+              alias: ""
+          EOF
+          chmod 600 "$HOME/.cos.yaml"
+          ./coscli cp release-assets/ "cos://${COS_BUCKET}/releases/${RELEASE_TAG}/" -r
+          ./coscli cp "cos://${COS_BUCKET}/releases/${RELEASE_TAG}/" "cos://${COS_BUCKET}/releases/latest/" -r
diff --git a/package.json b/package.json
index 148eea2..9c4d4a2 100644
--- a/package.json
+++ b/package.json
@@ -78,6 +78,12 @@
     "productName": "DSH Desktop",
     "asar": false,
     "npmRebuild": false,
+    "compression": "maximum",
+    "electronLanguages": [
+      "en-US",
+      "zh-CN",
+      "zh-TW"
+    ],
     "directories": {
       "output": "dist",
       "buildResources": "build"
@@ -85,7 +91,9 @@
     "files": [
       "out/**/*",
       "node_modules/**/*",
-      "package.json"
+      "package.json",
+      "!**/*.map",
+      "!**/node_modules/@mistralai/mistralai/src/**"
     ],
     "extraResources": [
       {
@@ -107,9 +115,8 @@
     ],
     "publish": [
       {
-        "provider": "github",
-        "owner": "dataelement",
-        "repo": "dsh-desktop"
+        "provider": "generic",
+        "url": "https://dshdesktop.com/updates/latest/"
       }
     ],
     "artifactName": "dsh-desktop-${os}-${arch}.${ext}",
@@ -123,6 +130,9 @@
         "zip"
       ]
     },
+    "dmg": {
+      "format": "UDBZ"
+    },
     "win": {
       "icon": "build/icon.ico",
       "verifyUpdateCodeSignature": false,