v13.1.0 (#16948)

Author: lusayaa

changelog.md

@@ -1,3 +1,59 @@
+<a name="13.1.0"></a>
+# 13.1.0 (2026-04-03)
+[Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v13.0.3...v13.1.0)
+
+We expect this release to ship in the DevTools of [Chrome 148](https://chromiumdash.appspot.com/schedule), and to PageSpeed Insights within 2 weeks.
+
+## New contributors
+
+Thanks to our new contributors 👽🐷🐰🐯🐻! 
+
+- Iaroslav Shvets @iaroslavshvets
+
+## New Audits
+
+* baseline: implement baseline compatibility audit ([#16904](https://github.com/GoogleChrome/lighthouse/pull/16904))
+
+## Core
+
+* baseline: add baseline icons to baseline audit lighthouse report ([#16927](https://github.com/GoogleChrome/lighthouse/pull/16927))
+* baseline: add web-feature version to audit description ([#16937](https://github.com/GoogleChrome/lighthouse/pull/16937))
+* baseline: add baseline compatibility audit to default config ([#16910](https://github.com/GoogleChrome/lighthouse/pull/16910))
+* network: revert strict wrapping of network requests ([#16949](https://github.com/GoogleChrome/lighthouse/pull/16949))
+* trace: add WebDX feature usage trace category ([#16899](https://github.com/GoogleChrome/lighthouse/pull/16899))
+
+## Deps
+
+* upgrade deps ([#16943](https://github.com/GoogleChrome/lighthouse/pull/16943))
+* dependabot: less noisy PRs ([#16919](https://github.com/GoogleChrome/lighthouse/pull/16919))
+
+## Clients
+
+* build: include missing 3P notices in MCP bundle ([#16917](https://github.com/GoogleChrome/lighthouse/pull/16917))
+
+## Docs
+
+* fix jsdoc link ([#16896](https://github.com/GoogleChrome/lighthouse/pull/16896))
+
+## Tests
+
+* lantern trace data must now be downloaded manually ([#16789](https://github.com/GoogleChrome/lighthouse/pull/16789))
+* fix CI failures and modernize documentation links ([#16939](https://github.com/GoogleChrome/lighthouse/pull/16939))
+* refresh sample artifacts ([#16916](https://github.com/GoogleChrome/lighthouse/pull/16916))
+* fix smoke tests relying on mozilla.org ([#16901](https://github.com/GoogleChrome/lighthouse/pull/16901))
+* fix CI. execContext count, i18n ICU breakage, loud jsdom parse output ([#16898](https://github.com/GoogleChrome/lighthouse/pull/16898))
+* devtools: sync e2e tests from devtools-frontend ([#16908](https://github.com/GoogleChrome/lighthouse/pull/16908))
+* smoke: smoke tests for the mcp bundle ([#16883](https://github.com/GoogleChrome/lighthouse/pull/16883))
+* smokehouse: fix baseline config to use onlyAudits ([#16931](https://github.com/GoogleChrome/lighthouse/pull/16931))
+
+## Misc
+
+* fix TS7 compatibility issue (declare module syntax) ([#16926](https://github.com/GoogleChrome/lighthouse/pull/16926))
+* build: shim puppeteer-core in the mcp bundle ([#16895](https://github.com/GoogleChrome/lighthouse/pull/16895))
+* build: remove soft nav from mcp bundle ([#16888](https://github.com/GoogleChrome/lighthouse/pull/16888))
+* build: fix mcp bundle shims ([#16882](https://github.com/GoogleChrome/lighthouse/pull/16882))
+* build: generate third party notices file ([#16887](https://github.com/GoogleChrome/lighthouse/pull/16887))
+
  <a name="13.0.3"></a>
 # 13.0.3 (2026-02-11)
 

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

@@ -2,7 +2,7 @@
   "steps": [
     {
       "lhr": {
-        "lighthouseVersion": "13.0.3",
+        "lighthouseVersion": "13.1.0",
         "requestedUrl": "https://www.mikescerealshack.co/",
         "mainDocumentUrl": "https://www.mikescerealshack.co/",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/",
@@ -7798,7 +7798,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "13.0.3",
+        "lighthouseVersion": "13.1.0",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2025-02-05T01:31:50.141Z",
         "gatherMode": "timespan",
@@ -11236,7 +11236,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "13.0.3",
+        "lighthouseVersion": "13.1.0",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2025-02-05T01:32:00.108Z",
         "gatherMode": "snapshot",
@@ -16888,7 +16888,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "13.0.3",
+        "lighthouseVersion": "13.1.0",
         "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": "13.0.3",
+  "lighthouseVersion": "13.1.0",
   "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": "^13.0.3"
+    "lighthouse": "^13.1.0"
   },
   "devDependencies": {
-    "lighthouse": "^13.0.3"
+    "lighthouse": "^13.1.0"
   }
 }
 ```

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

@@ -4,7 +4,7 @@
   "type": "module",
   "main": "./plugin.js",
   "peerDependencies": {
-    "lighthouse": "^13.0.3"
+    "lighthouse": "^13.1.0"
   },
   "devDependencies": {
     "lighthouse": "^8.6.0"

package.json

@@ -1,7 +1,7 @@
 {
   "name": "lighthouse",
   "type": "module",
-  "version": "13.0.3",
+  "version": "13.1.0",
   "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

@@ -79,7 +79,7 @@ describe('Navigation', function() {
       // 1 refresh after auditing to reset state
       assert.strictEqual(numNavigations, 5);
 
-      assert.strictEqual(lhr.lighthouseVersion, '13.0.3');
+      assert.strictEqual(lhr.lighthouseVersion, '13.1.0');
       assert.match(lhr.finalUrl, /^https:\/\/localhost:[0-9]+\/test\/e2e\/resources\/lighthouse\/hello.html/);
 
       assert.strictEqual(lhr.configSettings.throttlingMethod, 'simulate');