diff --git a/config/optional-features.json b/config/optional-features.json
index 77a734e93bd..b26286e2ecd 100644
--- a/config/optional-features.json
+++ b/config/optional-features.json
@@ -1,5 +1,6 @@
 {
   "application-template-wrapper": false,
+  "default-async-observers": true,
   "jquery-integration": false,
   "template-only-glimmer-components": true
 }
diff --git a/package-lock.json b/package-lock.json
index 5a6a853fdd7..b5742e729b0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8574,6 +8574,12 @@
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           "dev": true
         },
+        "acorn": {
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
+          "dev": true
+        },
         "acorn-globals": {
           "version": "4.3.4",
           "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-4.3.4.tgz",
@@ -9085,6 +9091,469 @@
         }
       }
     },
+    "@glimmer/component": {
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+      "resolved": "https://registry.npmjs.org/@glimmer/component/-/component-1.0.0.tgz",
+      "integrity": "sha512-1ERZYNLZRuC8RYbcfkJeAWn3Ly7W2VdoHLQIHCmhQH/m7ubkNOdLQcTnUzje7OnRUs9EJ6DjfoN57XRX9Ux4rA==",
+      "dev": true,
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+        "ember-cli-path-utils": "^1.0.0",
+        "ember-cli-string-utils": "^1.1.0",
+        "ember-cli-typescript": "3.0.0",
+        "ember-compatibility-helpers": "^1.1.2"
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+            "lodash": "^4.17.13",
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-              "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
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-            }
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@@ -42532,6 +43042,15 @@
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           "dev": true
         },
+        "w3c-hr-time": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.2.tgz",
+          "integrity": "sha512-z8P5DvDNjKDoFIHK7q8r8lackT6l+jo/Ye3HOle7l9nICP9lf1Ci25fy9vHd0JOWewkIFzXIEig3TdKT7JQ5fQ==",
+          "dev": true,
+          "requires": {
+            "browser-process-hrtime": "^1.0.0"
+          }
+        },
         "whatwg-url": {
           "version": "8.0.0",
           "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-8.0.0.tgz",
@@ -43486,9 +44005,9 @@
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-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
           "dev": true
         }
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@@ -43848,9 +44367,9 @@
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-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
           "dev": true
         }
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@@ -48821,9 +49340,9 @@
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-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/tr46/-/tr46-2.0.0.tgz",
-      "integrity": "sha512-LrErSqfhdUw73AC/eXV2fEmNkvgSYxfm5lvxnLvuVgoVDknvD28Pa5FeDGc8RuVouDxUD3GnHHFv7xnBp7As5w==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-2.0.2.tgz",
+      "integrity": "sha512-3n1qG+/5kg+jrbTzwAykB5yRYtQCTqOGKq5U5PE3b0a1/mzo6snDhjGS0zJVJunO0NrT3Dg1MLy5TjWP/UJppg==",
       "dev": true,
       "requires": {
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@@ -49195,9 +49714,9 @@
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-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
           "dev": true
         }
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diff --git a/package.json b/package.json
index 0860e31d1b2..d4f44be6227 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,8 @@
   },
   "devDependencies": {
     "@ember/optional-features": "^1.3.0",
+    "@glimmer/component": "^1.0.0",
+    "@glimmer/tracking": "^1.0.0",
     "babel-eslint": "^10.1.0",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "broccoli-asset-rev": "^3.0.0",
@@ -106,5 +108,8 @@
   "engines": {
     "node": "^12.9.1",
     "npm": "^6.10.2"
+  },
+  "ember": {
+    "edition": "octane"
   }
 }