v12.6.0 (#16467)

Author: connorjclark

changelog.md

@@ -1,3 +1,74 @@
+<a name="12.6.0"></a>
+# 12.6.0 (2025-04-28)
+[Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v12.5.1...v12.6.0)
+
+We expect this release to ship in the DevTools of [Chrome 137](https://chromiumdash.appspot.com/schedule), and to PageSpeed Insights within a few days.
+
+## New contributors
+
+Thanks to our new contributors 👽🐷🐰🐯🐻!
+
+Jack Franklin @jackfranklin
+Rob Kodey @rkodey
+Clément Barbaza @cba85
+
+## Notable Changes
+
+The Performance category in the Lighthouse report now has an option to toggle "insights" - read more [here](https://github.com/GoogleChrome/lighthouse/discussions/16462).
+
+
+## Core
+
+* disable invalidationTracking trace event to prevent crash ([#16451](https://github.com/GoogleChrome/lighthouse/pull/16451))
+* migrate audits from devtoolsLogs/traces to DevtoolsLog/Trace ([#16448](https://github.com/GoogleChrome/lighthouse/pull/16448))
+* modify scoreDisplayMode for insight audits to match Perf panel ([#16432](https://github.com/GoogleChrome/lighthouse/pull/16432))
+* use `with` import attributes for legacy-javascript, bump to node 18.20 ([#16415](https://github.com/GoogleChrome/lighthouse/pull/16415))
+* image-size-responsive: use real mimeType to exclude svg ([#16443](https://github.com/GoogleChrome/lighthouse/pull/16443))
+* insights: drop slow-css-selector-insight for now ([#16457](https://github.com/GoogleChrome/lighthouse/pull/16457))
+* insights: implement `duplicated-javascript-insight` ([#16456](https://github.com/GoogleChrome/lighthouse/pull/16456))
+* insights: add prominent toggle banner to report ([#16461](https://github.com/GoogleChrome/lighthouse/pull/16461))
+* insights: implement `network-dependency-tree` insight ([#16407](https://github.com/GoogleChrome/lighthouse/pull/16407))
+* optimized-images: ignore internal encoding errors ([#16444](https://github.com/GoogleChrome/lighthouse/pull/16444))
+* preload-fonts: add Stylesheets to required artifacts ([#16421](https://github.com/GoogleChrome/lighthouse/pull/16421))
+* stacks: correctly identify angular ([#16439](https://github.com/GoogleChrome/lighthouse/pull/16439))
+* third-party-cookies: update description ([#16464](https://github.com/GoogleChrome/lighthouse/pull/16464))
+* tracehouse: fixup parent tasks when fudging endTime ([#16420](https://github.com/GoogleChrome/lighthouse/pull/16420))
+
+## Report
+
+* add analytics hook for insights state ([#16466](https://github.com/GoogleChrome/lighthouse/pull/16466))
+* adjust insights notice banner, localize strings ([#16463](https://github.com/GoogleChrome/lighthouse/pull/16463))
+* add insights group description ([#16455](https://github.com/GoogleChrome/lighthouse/pull/16455))
+* associate insight audits with stack packs ([#16440](https://github.com/GoogleChrome/lighthouse/pull/16440))
+* tweak style of insight tables; use system font ([#16434](https://github.com/GoogleChrome/lighthouse/pull/16434))
+* support node inside list detail, use in insight audits ([#16433](https://github.com/GoogleChrome/lighthouse/pull/16433))
+* display insights when using toggle, even if hidden ([#16431](https://github.com/GoogleChrome/lighthouse/pull/16431))
+
+## Deps
+
+* upgrade trace_engine to 0.0.52 ([#16465](https://github.com/GoogleChrome/lighthouse/pull/16465))
+* upgrade trace_engine to 0.0.51 ([#16447](https://github.com/GoogleChrome/lighthouse/pull/16447))
+* upgrade deps ([#16438](https://github.com/GoogleChrome/lighthouse/pull/16438))
+* upgrade typescript to 5.8.2 ([#16414](https://github.com/GoogleChrome/lighthouse/pull/16414))
+
+## Docs
+
+* fix "standalone-template.html" broken link in report README ([#16429](https://github.com/GoogleChrome/lighthouse/pull/16429))
+
+## Tests
+
+* disable oopif-scripts smoke for devtools runner ([#16446](https://github.com/GoogleChrome/lighthouse/pull/16446))
+
+## Misc
+
+* prepare core/lib/legacy-javascript to be published to npm ([#16416](https://github.com/GoogleChrome/lighthouse/pull/16416))
+* treemap: represent sizes using transfer size ([#16460](https://github.com/GoogleChrome/lighthouse/pull/16460))
+* treemap: parse options properly from hash params ([#16459](https://github.com/GoogleChrome/lighthouse/pull/16459))
+* treemap: update coerceOptions to grab initialView ([#16458](https://github.com/GoogleChrome/lighthouse/pull/16458))
+* treemap: move table to right, remove Tabulator ([#16428](https://github.com/GoogleChrome/lighthouse/pull/16428))
+* treemap: set initial view mode from options ([#16427](https://github.com/GoogleChrome/lighthouse/pull/16427))
+* treemap: vary colors within bundle, update fonts ([#16403](https://github.com/GoogleChrome/lighthouse/pull/16403))
+
 <a name="12.5.1"></a>
 # 12.5.1 (2025-03-26)
 [Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v12.5.0...v12.5.1)

core/test/fixtures/user-flows/reports/sample-flow-result.json

@@ -2,7 +2,7 @@
   "steps": [
     {
       "lhr": {
-        "lighthouseVersion": "12.5.1",
+        "lighthouseVersion": "12.6.0",
         "requestedUrl": "https://www.mikescerealshack.co/",
         "mainDocumentUrl": "https://www.mikescerealshack.co/",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/",
@@ -9652,7 +9652,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "12.5.1",
+        "lighthouseVersion": "12.6.0",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2025-02-05T01:31:50.141Z",
         "gatherMode": "timespan",
@@ -14774,7 +14774,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "12.5.1",
+        "lighthouseVersion": "12.6.0",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2025-02-05T01:32:00.108Z",
         "gatherMode": "snapshot",
@@ -20174,7 +20174,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "12.5.1",
+        "lighthouseVersion": "12.6.0",
         "requestedUrl": "https://www.mikescerealshack.co/corrections",
         "mainDocumentUrl": "https://www.mikescerealshack.co/corrections",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/corrections",

core/test/results/sample_v2.json

@@ -1,5 +1,5 @@
 {
-  "lighthouseVersion": "12.5.1",
+  "lighthouseVersion": "12.6.0",
   "requestedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
   "mainDocumentUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
   "finalDisplayedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",

docs/plugins.md

@@ -61,10 +61,10 @@ A Lighthouse plugin is just a node module with a name that starts with `lighthou
   "type": "module",
   "main": "plugin.js",
   "peerDependencies": {
-    "lighthouse": "^12.5.1"
+    "lighthouse": "^12.6.0"
   },
   "devDependencies": {
-    "lighthouse": "^12.5.1"
+    "lighthouse": "^12.6.0"
   }
 }
 ```

docs/recipes/lighthouse-plugin-example/package.json

@@ -4,7 +4,7 @@
   "type": "module",
   "main": "./plugin.js",
   "peerDependencies": {
-    "lighthouse": "^12.5.1"
+    "lighthouse": "^12.6.0"
   },
   "devDependencies": {
     "lighthouse": "^8.6.0"

package.json

@@ -1,7 +1,7 @@
 {
   "name": "lighthouse",
   "type": "module",
-  "version": "12.5.1",
+  "version": "12.6.0",
   "description": "Automated auditing, performance metrics, and best practices for the web.",
   "main": "./core/index.js",
   "bin": {

third-party/devtools-tests/e2e/lighthouse/navigation_test.ts

@@ -94,7 +94,7 @@ describe('Navigation', function() {
     // 1 refresh after auditing to reset state
     assert.strictEqual(numNavigations, 5);
 
-    assert.strictEqual(lhr.lighthouseVersion, '12.5.1');
+    assert.strictEqual(lhr.lighthouseVersion, '12.6.0');
     assert.match(lhr.finalUrl, /^https:\/\/localhost:[0-9]+\/test\/e2e\/resources\/lighthouse\/hello.html/);
 
     assert.strictEqual(lhr.configSettings.throttlingMethod, 'simulate');