sync from abhijitramesh/webgpu-bench@3b29d4e1c8

data/combined.json

@@ -7,7 +7,7 @@
         "platform": "darwin",
         "arch": "arm",
         "totalMemoryGB": 4,
-        "submittedAt": "2026-04-25T20:54:49.553Z",
+        "submittedAt": "2026-04-25T20:57:10.721Z",
         "resultCount": 6,
         "passCount": 6,
         "llamaCppCommit": null,
@@ -34,7 +34,7 @@
         "platform": "darwin",
         "arch": "arm",
         "totalMemoryGB": 8,
-        "submittedAt": "2026-04-25T20:54:49.552Z",
+        "submittedAt": "2026-04-25T20:57:10.720Z",
         "resultCount": 2,
         "passCount": 2,
         "llamaCppCommit": null,
@@ -58,7 +58,7 @@
     "browsers": [
       "chromium-147"
     ],
-    "generatedAt": "2026-04-25T20:54:49.603Z"
+    "generatedAt": "2026-04-25T20:57:10.784Z"
   },
   "results": [
     {

js/run/device.js

@@ -153,19 +153,29 @@ export async function describeDevice() {
   let uaArch = null;
   let uaPlatform = null;
   let uaPlatformVersion = null;
+  // `fullVersionList` is the high-entropy version of `brands` and gives
+  // us the full dotted version (e.g. "147.0.7390.107") instead of just
+  // the major. The default `brands` is major-only.
+  let fullVersionList = null;
   try {
     const uad = navigator.userAgentData;
     if (uad?.getHighEntropyValues) {
-      const hev = await uad.getHighEntropyValues(['architecture', 'platform', 'platformVersion']);
+      const hev = await uad.getHighEntropyValues([
+        'architecture', 'platform', 'platformVersion', 'fullVersionList',
+      ]);
       uaArch = hev.architecture || null;
       uaPlatform = hev.platform || null;
       uaPlatformVersion = hev.platformVersion || null;
+      fullVersionList = hev.fullVersionList || null;
     }
   } catch { /* not Chromium or denied */ }
 
   // UA-CH brands give us a clean { brand, version } pair without parsing
   // the userAgent string. Filter out the "Not(A:Brand)" decoy entries.
-  const brands = (navigator.userAgentData?.brands || [])
+  // Prefer `fullVersionList` (full dotted version) over the major-only
+  // default `brands` list.
+  const brandSource = fullVersionList || navigator.userAgentData?.brands || [];
+  const brands = brandSource
     .filter(b => b && !/not[^\w]*a[^\w]*brand/i.test(b.brand));
 
   return {