maybe created auto updater?

update-client.js

@@ -358,7 +358,8 @@ class UpdateClient {
       }
       return 0;
     };
-    const release = releases.slice().sort((a, b) => cmp(b.tag_name, a.tag_name))[0];
+    const ordered = releases.slice().sort((a, b) => cmp(b.tag_name, a.tag_name));
+    const release = ordered[0];
     const links = release.assets && release.assets.links ? release.assets.links : [];
     const manifestAsset = links.find((a) => a.name === 'manifest.json');
 
@@ -403,6 +404,10 @@ class UpdateClient {
       }
     }
 
+    if (!installer) {
+      installer = await this.findInstaller(ordered, release.tag_name);
+    }
+
     const out = {
       version: release.tag_name,
       sha256: manifest.sha256 || null,
@@ -414,6 +419,28 @@ class UpdateClient {
     return out;
   }
 
+  async findInstaller(ordered, skipTag) {
+    for (const r of ordered.slice(0, 6)) {
+      if (r.tag_name === skipTag) continue;
+      const rl = r.assets && r.assets.links ? r.assets.links : [];
+      const ma = rl.find((a) => a.name === 'manifest.json');
+      if (!ma) continue;
+      try {
+        const m = await this.fetchAssetJson(ma.url);
+        if (!m.installer || !verifyManifest(m)) continue;
+        const link = rl.find((a) => a.name === m.installer.file);
+        if (!link) continue;
+        return {
+          url: link.url,
+          sha256: m.installer.sha256,
+          size: m.installer.size,
+          version: m.installer.version
+        };
+      } catch (e) { }
+    }
+    return null;
+  }
+
   async downloadUpdate(release, destPath, onProgress) {
     await this.downloadFile(release.url, destPath, onProgress);
     return destPath;