v13.3.0 (#17008)

Author: lusayaa

changelog.md

@@ -1,3 +1,31 @@
+ <a name="13.3.0"></a>
+# 13.3.0 (2026-05-07)
+[Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v13.2.0...v13.3.0)
+
+We expect this release to ship in the DevTools of [Chrome 150](https://chromiumdash.appspot.com/schedule), and to PageSpeed Insights within 2 weeks.
+
+## Notable Changes
+
+* New agentic browsing category added to default config ([#17002](https://github.com/GoogleChrome/lighthouse/pull/17002))
+
+## Core
+
+* agentic-web: add links to category and audit descriptions ([#16997](https://github.com/GoogleChrome/lighthouse/pull/16997))
+* llms-txt: adjust titles and descriptions and add smoketests ([#17005](https://github.com/GoogleChrome/lighthouse/pull/17005))
+
+## Deps
+
+* upgrade dependencies ([#17006](https://github.com/GoogleChrome/lighthouse/pull/17006))
+
+## Tests
+
+* smoke: widen byte efficiency wastedBytes range for ToT ([#16996](https://github.com/GoogleChrome/lighthouse/pull/16996))
+* webmcp: add webmcp smoketests ([#16999](https://github.com/GoogleChrome/lighthouse/pull/16999))
+
+## Misc
+
+* bundle: update build-bundle-mcp ([#16995](https://github.com/GoogleChrome/lighthouse/pull/16995))
+
  <a name="13.2.0"></a>
 # 13.2.0 (2026-04-30)
 [Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v13.1.0...v13.2.0)

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

@@ -2,7 +2,7 @@
   "steps": [
     {
       "lhr": {
-        "lighthouseVersion": "13.2.0",
+        "lighthouseVersion": "13.3.0",
         "requestedUrl": "https://www.mikescerealshack.co/",
         "mainDocumentUrl": "https://www.mikescerealshack.co/",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/",
@@ -8122,7 +8122,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "13.2.0",
+        "lighthouseVersion": "13.3.0",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2025-02-05T01:31:50.141Z",
         "gatherMode": "timespan",
@@ -11580,7 +11580,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "13.2.0",
+        "lighthouseVersion": "13.3.0",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2025-02-05T01:32:00.108Z",
         "gatherMode": "snapshot",
@@ -17553,7 +17553,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "13.2.0",
+        "lighthouseVersion": "13.3.0",
         "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": "13.2.0",
+  "lighthouseVersion": "13.3.0",
   "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": "^13.2.0"
+    "lighthouse": "^13.3.0"
   },
   "devDependencies": {
-    "lighthouse": "^13.2.0"
+    "lighthouse": "^13.3.0"
   }
 }
 ```

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

@@ -4,7 +4,7 @@
   "type": "module",
   "main": "./plugin.js",
   "peerDependencies": {
-    "lighthouse": "^13.2.0"
+    "lighthouse": "^13.3.0"
   },
   "devDependencies": {
     "lighthouse": "^8.6.0"

package.json

@@ -1,7 +1,7 @@
 {
   "name": "lighthouse",
   "type": "module",
-  "version": "13.2.0",
+  "version": "13.3.0",
   "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, '13.2.0');
+      assert.strictEqual(lhr.lighthouseVersion, '13.3.0');
       assert.match(lhr.finalUrl, /^https:\/\/localhost:[0-9]+\/test\/e2e\/resources\/lighthouse\/hello.html/);
 
       assert.strictEqual(lhr.configSettings.throttlingMethod, 'simulate');

yarn.lock

@@ -3600,12 +3600,7 @@ delayed-stream@~1.0.0:
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
-devtools-protocol@0.0.1608973, devtools-protocol@0.0.1621552:
-  version "0.0.1621552"
-  resolved "https://registry.yarnpkg.com/devtools-protocol/-/devtools-protocol-0.0.1621552.tgz#03486587aaede81f53a6599a4c1ab2247c8f954c"
-  integrity sha512-uaHF17cjNtGKOVZUoh8W0PGuEwR3pWzY5kz3sj7PK8N/SyBKG3cPnQIehVDDJkSdph6Omv+GlP7GdM/b4DTgJQ==
-
-devtools-protocol@0.0.1625959:
+devtools-protocol@0.0.1608973, devtools-protocol@0.0.1625959:
   version "0.0.1625959"
   resolved "https://registry.yarnpkg.com/devtools-protocol/-/devtools-protocol-0.0.1625959.tgz#165aee3b688dd74bf9e60432acd6829b08ed38d8"
   integrity sha512-wRBSU330hwOLLcb3N4NIe3eFs6MgT6ku3AiZONjnTSJ7f3dVchJfn6nE0Lfos9jK1na15bgp7xLhaCx40Y47NQ==