diff --git a/CodePush.js b/CodePush.js
index 2d1d9deda..f9815e1b0 100644
--- a/CodePush.js
+++ b/CodePush.js
@@ -5,6 +5,15 @@ import { AppState, Platform } from "react-native";
 import log from "./logging";
 import hoistStatics from 'hoist-non-react-statics';
 
+if (typeof __DEV__ !== "undefined" && __DEV__) {
+  console.warn(
+    "[CodePush] @code-push-next/react-native-code-push is deprecated in favor of Codemagic Patch " +
+    "(@codemagic/react-native-patch), which includes a web dashboard, native fingerprinting and " +
+    "support for new React Native versions. " +
+    "https://patch.codemagic.io/docs/migration/migrating-from-codepush"
+  );
+}
+
 let NativeCodePush = require("react-native").NativeModules.CodePush;
 const PackageMixins = require("./package-mixins")(NativeCodePush);
 
diff --git a/README.md b/README.md
index 28ce784de..706ab9d0f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,8 @@
-> **From the maintainers:** We build [Codemagic Patch](https://github.com/codemagic-ci-cd/codemagic-patch), a self-hosted OTA update service for React Native — server, client SDK, CLI, and dashboard — where our new development happens, and we recommend it for new projects. If you want to migrate from self-hosted CodePush, see the [migration guide](https://github.com/codemagic-ci-cd/codemagic-patch/blob/main/docs/migrate-from-codepush.md).
+> **DEPRECATED:** This package is frozen. No new features and no React Native version support will ship here. Last targeted support is in the React Native 0.82 era (`v10.4+`).
+>
+> Use [Codemagic Patch](https://patch.codemagic.io/docs/migration/migrating-from-codepush) (`@codemagic/react-native-patch`) instead, which includes a web dashboard, native fingerprinting and support for new React Native versions.
+>
+> Migration guide: https://patch.codemagic.io/docs/migration/migrating-from-codepush
 
 # React Native Module for CodePush
 
diff --git a/package.json b/package.json
index 232987355..36f9b7eb0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@code-push-next/react-native-code-push",
   "version": "10.4.3",
-  "description": "React Native plugin for the CodePush service",
+  "description": "Deprecated in favor of Codemagic Patch (@codemagic/react-native-patch), which includes a web dashboard, native fingerprinting and support for new React Native versions. https://patch.codemagic.io/docs/migration/migrating-from-codepush",
   "main": "CodePush.js",
   "typings": "typings/react-native-code-push.d.ts",
   "homepage": "https://github.com/codemagic-ci-cd/react-native-code-push",
@@ -13,6 +13,7 @@
   "author": "Code Push Next",
   "license": "MIT",
   "scripts": {
+    "postinstall": "node scripts/postinstall.js",
     "clean": "shx rm -rf bin",
     "setup": "npm install --quiet --no-progress",
     "prebuild:tests": "npm run clean && npm run tslint",
diff --git a/scripts/postinstall.js b/scripts/postinstall.js
new file mode 100644
index 000000000..9b3bd3eb5
--- /dev/null
+++ b/scripts/postinstall.js
@@ -0,0 +1,16 @@
+#!/usr/bin/env node
+"use strict";
+
+const migrateUrl =
+  "https://patch.codemagic.io/docs/migration/migrating-from-codepush";
+
+console.warn(
+  [
+    "",
+    "[DEPRECATED] @code-push-next/react-native-code-push is deprecated in favor of",
+    "Codemagic Patch (@codemagic/react-native-patch), which includes a web dashboard,",
+    "native fingerprinting and support for new React Native versions.",
+    migrateUrl,
+    "",
+  ].join("\n")
+);