diff --git a/packages/create-subscription/package.json b/packages/create-subscription/package.json
index 5230f5beac976..991c885995366 100644
--- a/packages/create-subscription/package.json
+++ b/packages/create-subscription/package.json
@@ -1,7 +1,7 @@
 {
   "name": "create-subscription",
   "description": "utility for subscribing to external data sources inside React components",
-  "version": "16.8.4",
+  "version": "16.8.5",
   "repository": {
     "type": "git",
     "url": "https://github.com/facebook/react.git",
diff --git a/packages/jest-react/package.json b/packages/jest-react/package.json
index 65cdd7f0ab0bd..61b8ffce917ee 100644
--- a/packages/jest-react/package.json
+++ b/packages/jest-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jest-react",
-  "version": "0.6.4",
+  "version": "0.6.5",
   "description": "Jest matchers and utilities for testing React components.",
   "main": "index.js",
   "repository": {
diff --git a/packages/react-art/package.json b/packages/react-art/package.json
index 5489654088853..e4e1e93bc6a07 100644
--- a/packages/react-art/package.json
+++ b/packages/react-art/package.json
@@ -1,7 +1,7 @@
 {
   "name": "react-art",
   "description": "React ART is a JavaScript library for drawing vector graphics using React. It provides declarative and reactive bindings to the ART library. Using the same declarative API you can render the output to either Canvas, SVG or VML (IE8).",
-  "version": "16.8.4",
+  "version": "16.8.5",
   "main": "index.js",
   "repository": {
     "type": "git",
@@ -27,7 +27,7 @@
     "loose-envify": "^1.1.0",
     "object-assign": "^4.1.1",
     "prop-types": "^15.6.2",
-    "scheduler": "^0.13.4"
+    "scheduler": "^0.13.5"
   },
   "peerDependencies": {
     "react": "^16.0.0"
diff --git a/packages/react-dom/package.json b/packages/react-dom/package.json
index e430bef026870..1dd3b9316b5a9 100644
--- a/packages/react-dom/package.json
+++ b/packages/react-dom/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-dom",
-  "version": "16.8.4",
+  "version": "16.8.5",
   "description": "React package for working with the DOM.",
   "main": "index.js",
   "repository": {
@@ -20,7 +20,7 @@
     "loose-envify": "^1.1.0",
     "object-assign": "^4.1.1",
     "prop-types": "^15.6.2",
-    "scheduler": "^0.13.4"
+    "scheduler": "^0.13.5"
   },
   "peerDependencies": {
     "react": "^16.0.0"
diff --git a/packages/react-is/package.json b/packages/react-is/package.json
index 1aec135c4b84e..fdd9b14ea6cb5 100644
--- a/packages/react-is/package.json
+++ b/packages/react-is/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-is",
-  "version": "16.8.4",
+  "version": "16.8.5",
   "description": "Brand checking of React Elements.",
   "main": "index.js",
   "repository": {
diff --git a/packages/react-reconciler/package.json b/packages/react-reconciler/package.json
index 8be62150a9810..400086ad21979 100644
--- a/packages/react-reconciler/package.json
+++ b/packages/react-reconciler/package.json
@@ -1,7 +1,7 @@
 {
   "name": "react-reconciler",
   "description": "React package for creating custom renderers.",
-  "version": "0.20.2",
+  "version": "0.20.3",
   "keywords": [
     "react"
   ],
@@ -33,7 +33,7 @@
     "loose-envify": "^1.1.0",
     "object-assign": "^4.1.1",
     "prop-types": "^15.6.2",
-    "scheduler": "^0.13.4"
+    "scheduler": "^0.13.5"
   },
   "browserify": {
     "transform": [
diff --git a/packages/react-test-renderer/package.json b/packages/react-test-renderer/package.json
index e71d6e77d3727..fec8e7f7a79b9 100644
--- a/packages/react-test-renderer/package.json
+++ b/packages/react-test-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-test-renderer",
-  "version": "16.8.4",
+  "version": "16.8.5",
   "description": "React package for snapshot testing.",
   "main": "index.js",
   "repository": {
@@ -21,8 +21,8 @@
   "dependencies": {
     "object-assign": "^4.1.1",
     "prop-types": "^15.6.2",
-    "react-is": "^16.8.4",
-    "scheduler": "^0.13.4"
+    "react-is": "^16.8.5",
+    "scheduler": "^0.13.5"
   },
   "peerDependencies": {
     "react": "^16.0.0"
diff --git a/packages/react/package.json b/packages/react/package.json
index dadd7d2da5e40..1ccdae0ace355 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -4,7 +4,7 @@
   "keywords": [
     "react"
   ],
-  "version": "16.8.4",
+  "version": "16.8.5",
   "homepage": "https://reactjs.org/",
   "bugs": "https://github.com/facebook/react/issues",
   "license": "MIT",
@@ -29,7 +29,7 @@
     "loose-envify": "^1.1.0",
     "object-assign": "^4.1.1",
     "prop-types": "^15.6.2",
-    "scheduler": "^0.13.4"
+    "scheduler": "^0.13.5"
   },
   "browserify": {
     "transform": [
diff --git a/packages/scheduler/package.json b/packages/scheduler/package.json
index a8dec1a354890..3845459764d71 100644
--- a/packages/scheduler/package.json
+++ b/packages/scheduler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "scheduler",
-  "version": "0.13.4",
+  "version": "0.13.5",
   "description": "Cooperative scheduler for the browser environment.",
   "main": "index.js",
   "repository": {
diff --git a/packages/shared/ReactVersion.js b/packages/shared/ReactVersion.js
index c5f23d432ba93..0679d87d34f44 100644
--- a/packages/shared/ReactVersion.js
+++ b/packages/shared/ReactVersion.js
@@ -8,4 +8,4 @@
 'use strict';
 
 // TODO: this is special because it gets imported during build.
-module.exports = '16.8.4';
+module.exports = '16.8.5';
diff --git a/scripts/error-codes/codes.json b/scripts/error-codes/codes.json
index 8baf0c1d92181..94f89e5dc66a7 100644
--- a/scripts/error-codes/codes.json
+++ b/scripts/error-codes/codes.json
@@ -319,5 +319,7 @@
   "317": "Expected to have a hydrated suspense instance. This error is likely caused by a bug in React. Please file an issue.",
   "318": "A dehydrated suspense component was completed without a hydrated node. This is probably a bug in React.",
   "319": "A dehydrated suspense boundary must commit before trying to render. This is probably a bug in React.",
-  "320": "Expected ReactFiberErrorDialog.showErrorDialog to be a function."
+  "320": "Expected ReactFiberErrorDialog.showErrorDialog to be a function.",
+  "321": "Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:\n1. You might have mismatching versions of React and the renderer (such as React DOM)\n2. You might be breaking the Rules of Hooks\n3. You might have more than one copy of React in the same app\nSee https://fb.me/react-invalid-hook-call for tips about how to debug and fix this problem.",
+  "322": "forwardRef requires a render function but was given %s."
 }