diff --git a/addons/core/addon/initializers/deprecations.js b/addons/core/addon/initializers/deprecations.js
new file mode 100644
index 000000000..c955b7e4b
--- /dev/null
+++ b/addons/core/addon/initializers/deprecations.js
@@ -0,0 +1,17 @@
+import { registerDeprecationHandler } from '@ember/debug';
+import config from 'ember-get-config';
+
+const isTesting = config.environment === 'test';
+
+export function initialize(/* application */) {
+  if (isTesting) {
+    // Disable all deprecations for now in tests.
+    registerDeprecationHandler((/*message, options, next*/) => {
+      return;
+    });
+  }
+}
+
+export default {
+  initialize,
+};
diff --git a/addons/core/app/initializers/deprecations.js b/addons/core/app/initializers/deprecations.js
new file mode 100644
index 000000000..ba37e6e59
--- /dev/null
+++ b/addons/core/app/initializers/deprecations.js
@@ -0,0 +1 @@
+export { default, initialize } from 'core/initializers/deprecations';
diff --git a/addons/core/tests/unit/initializers/deprecations-test.js b/addons/core/tests/unit/initializers/deprecations-test.js
new file mode 100644
index 000000000..8bcde847b
--- /dev/null
+++ b/addons/core/tests/unit/initializers/deprecations-test.js
@@ -0,0 +1,34 @@
+import Application from '@ember/application';
+
+import config from 'dummy/config/environment';
+import { initialize } from 'dummy/initializers/deprecations';
+import { module, test } from 'qunit';
+import Resolver from 'ember-resolver';
+import { run } from '@ember/runloop';
+
+module('Unit | Initializer | deprecations', function (hooks) {
+  hooks.beforeEach(function () {
+    this.TestApplication = class TestApplication extends Application {
+      modulePrefix = config.modulePrefix;
+      podModulePrefix = config.podModulePrefix;
+      Resolver = Resolver;
+    };
+    this.TestApplication.initializer({
+      name: 'initializer under test',
+      initialize,
+    });
+
+    this.application = this.TestApplication.create({ autoboot: false });
+  });
+
+  hooks.afterEach(function () {
+    run(this.application, 'destroy');
+  });
+
+  // TODO: Replace this with your real tests.
+  test('it works', async function (assert) {
+    await this.application.boot();
+
+    assert.ok(true);
+  });
+});
diff --git a/addons/rose/package.json b/addons/rose/package.json
index f96577dce..d4ade2f5b 100644
--- a/addons/rose/package.json
+++ b/addons/rose/package.json
@@ -38,6 +38,7 @@
     "emberx-select": "github:adopted-ember-addons/emberx-select#bc5f774"
   },
   "devDependencies": {
+    "ember-get-config": "^0.3.0",
     "@babel/core": "^7.15.5",
     "@ember/optional-features": "^2.0.0",
     "@ember/test-helpers": "^2.4.2",
diff --git a/addons/rose/tests/dummy/app/initializers/deprecations.js b/addons/rose/tests/dummy/app/initializers/deprecations.js
new file mode 100644
index 000000000..c955b7e4b
--- /dev/null
+++ b/addons/rose/tests/dummy/app/initializers/deprecations.js
@@ -0,0 +1,17 @@
+import { registerDeprecationHandler } from '@ember/debug';
+import config from 'ember-get-config';
+
+const isTesting = config.environment === 'test';
+
+export function initialize(/* application */) {
+  if (isTesting) {
+    // Disable all deprecations for now in tests.
+    registerDeprecationHandler((/*message, options, next*/) => {
+      return;
+    });
+  }
+}
+
+export default {
+  initialize,
+};