diff --git a/changelog.md b/changelog.md
index 60aaec3144a3..1581dd2d8fad 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,57 @@
+ <a name="12.2.2"></a>
+# 12.2.2 (2024-11-14)
+[Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v12.2.1...v12.2.2)
+
+We expect this release to ship in the DevTools of [Chrome 133](https://chromiumdash.appspot.com/schedule), and to PageSpeed Insights within 2 weeks.
+
+## New contributors
+
+Thanks to our new contributors 👽🐷🐰🐯🐻!
+
+- Nate @servusdei2018
+- Gareth Jones @G-Rath
+- JDev @JWebDev
+
+## Core
+
+* network-monitor: treat EventSource as non-critical ([#16225](https://github.com/GoogleChrome/lighthouse/pull/16225))
+* target-manager: ignore target if type is unknown ([#16221](https://github.com/GoogleChrome/lighthouse/pull/16221))
+
+## CLI
+
+* create writeFile destination if necessary ([#15990](https://github.com/GoogleChrome/lighthouse/pull/15990))
+
+## Deps
+
+* upgrade puppeteer to 23.8.0 ([#16248](https://github.com/GoogleChrome/lighthouse/pull/16248))
+* upgrade `third-party-web` to 0.26.1 ([#16219](https://github.com/GoogleChrome/lighthouse/pull/16219))
+* upgrade puppeteer to 23.5.2 ([#16220](https://github.com/GoogleChrome/lighthouse/pull/16220))
+* lighthouse-stack-packs: upgrade to 1.12.2 ([#16242](https://github.com/GoogleChrome/lighthouse/pull/16242))
+* lodash: migrate lodash to lodash-es ([#16211](https://github.com/GoogleChrome/lighthouse/pull/16211))
+* sentry: upgrade to v7 ([#16215](https://github.com/GoogleChrome/lighthouse/pull/16215))
+
+## Clients
+
+* lr: set CPU throttling based on benchmark ([#16226](https://github.com/GoogleChrome/lighthouse/pull/16226))
+* lr: fix wrong render-blocking-resources transfer size ([#16190](https://github.com/GoogleChrome/lighthouse/pull/16190))
+
+## I18n
+
+* import ([#16250](https://github.com/GoogleChrome/lighthouse/pull/16250))
+
+## Docs
+
+* readme: add `lighthouse-matchers` to related projects ([#16239](https://github.com/GoogleChrome/lighthouse/pull/16239))
+* readme: add Guardius to services list ([#16235](https://github.com/GoogleChrome/lighthouse/pull/16235))
+
+## Tests
+
+* smoke: fix devtools test runner & a11y errors ([#16236](https://github.com/GoogleChrome/lighthouse/pull/16236))
+
+## Misc
+
+* ci: upgrade old actions ([#16191](https://github.com/GoogleChrome/lighthouse/pull/16191))
+
 <a name="12.2.1"></a>
 # 12.2.1 (2024-09-06)
 [Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v12.2.0...v12.2.1)
diff --git a/core/test/fixtures/user-flows/reports/sample-flow-result.json b/core/test/fixtures/user-flows/reports/sample-flow-result.json
index e2e1de2b2428..2157f3ff5d93 100644
--- a/core/test/fixtures/user-flows/reports/sample-flow-result.json
+++ b/core/test/fixtures/user-flows/reports/sample-flow-result.json
@@ -2,7 +2,7 @@
   "steps": [
     {
       "lhr": {
-        "lighthouseVersion": "12.2.1",
+        "lighthouseVersion": "12.2.2",
         "requestedUrl": "https://www.mikescerealshack.co/",
         "mainDocumentUrl": "https://www.mikescerealshack.co/",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/",
@@ -8335,7 +8335,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "12.2.1",
+        "lighthouseVersion": "12.2.2",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2024-04-18T17:03:07.290Z",
         "gatherMode": "timespan",
@@ -12298,7 +12298,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "12.2.1",
+        "lighthouseVersion": "12.2.2",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
         "fetchTime": "2024-04-18T17:03:17.899Z",
         "gatherMode": "snapshot",
@@ -17694,7 +17694,7 @@
     },
     {
       "lhr": {
-        "lighthouseVersion": "12.2.1",
+        "lighthouseVersion": "12.2.2",
         "requestedUrl": "https://www.mikescerealshack.co/corrections",
         "mainDocumentUrl": "https://www.mikescerealshack.co/corrections",
         "finalDisplayedUrl": "https://www.mikescerealshack.co/corrections",
diff --git a/core/test/results/sample_v2.json b/core/test/results/sample_v2.json
index bf44d26cf01b..3f3c9a3526dd 100644
--- a/core/test/results/sample_v2.json
+++ b/core/test/results/sample_v2.json
@@ -1,5 +1,5 @@
 {
-  "lighthouseVersion": "12.2.1",
+  "lighthouseVersion": "12.2.2",
   "requestedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
   "mainDocumentUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
   "finalDisplayedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
diff --git a/docs/plugins.md b/docs/plugins.md
index c21a4624719b..a79eed895c6b 100644
--- a/docs/plugins.md
+++ b/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": "^12.2.1"
+    "lighthouse": "^12.2.2"
   },
   "devDependencies": {
-    "lighthouse": "^12.2.1"
+    "lighthouse": "^12.2.2"
   }
 }
 ```
diff --git a/docs/recipes/lighthouse-plugin-example/package.json b/docs/recipes/lighthouse-plugin-example/package.json
index df07ff0883ff..0aef3d937dc5 100644
--- a/docs/recipes/lighthouse-plugin-example/package.json
+++ b/docs/recipes/lighthouse-plugin-example/package.json
@@ -4,7 +4,7 @@
   "type": "module",
   "main": "./plugin.js",
   "peerDependencies": {
-    "lighthouse": "^12.2.1"
+    "lighthouse": "^12.2.2"
   },
   "devDependencies": {
     "lighthouse": "^8.6.0"
diff --git a/package.json b/package.json
index eef792311ec6..5bbad85e1dd8 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "lighthouse",
   "type": "module",
-  "version": "12.2.1",
+  "version": "12.2.2",
   "description": "Automated auditing, performance metrics, and best practices for the web.",
   "main": "./core/index.js",
   "bin": {
diff --git a/third-party/devtools-tests/e2e/lighthouse/navigation_test.ts b/third-party/devtools-tests/e2e/lighthouse/navigation_test.ts
index b0e3d08e7d51..cb139190e297 100644
--- a/third-party/devtools-tests/e2e/lighthouse/navigation_test.ts
+++ b/third-party/devtools-tests/e2e/lighthouse/navigation_test.ts
@@ -95,7 +95,7 @@ describe('Navigation', function() {
     // 1 refresh after auditing to reset state
     assert.strictEqual(numNavigations, 5);
 
-    assert.strictEqual(lhr.lighthouseVersion, '12.2.1');
+    assert.strictEqual(lhr.lighthouseVersion, '12.2.2');
     assert.match(lhr.finalUrl, /^https:\/\/localhost:[0-9]+\/test\/e2e\/resources\/lighthouse\/hello.html/);
 
     assert.strictEqual(lhr.configSettings.throttlingMethod, 'simulate');