diff --git a/package.json b/package.json
index ad670f5138c..e1469d31c84 100644
--- a/package.json
+++ b/package.json
@@ -81,7 +81,7 @@
     "@glimmer/global-context": "0.80.0",
     "@glimmer/interfaces": "0.80.0",
     "@glimmer/manager": "0.80.0",
-    "@glimmer/node": "0.80.0",
+    "@glimmer/node": "0.84.2",
     "@glimmer/opcode-compiler": "0.80.0",
     "@glimmer/owner": "0.80.0",
     "@glimmer/program": "0.80.0",
diff --git a/yarn.lock b/yarn.lock
index 5ec8b04f36c..cf819ef79bb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1602,6 +1602,16 @@
     "@glimmer/interfaces" "0.80.0"
     "@glimmer/util" "0.80.0"
 
+"@glimmer/destroyable@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/destroyable/-/destroyable-0.84.2.tgz#67009d931346f4988a6dd329cd8b95141726a453"
+  integrity sha512-74L4+jlGUhzhUe87lTxjFdYEEfcDWcza+jqLXoyIb/p4cS0hWsTGlyF+OcuUbHO4yqJd4bXchGOVocoajmSp6w==
+  dependencies:
+    "@glimmer/env" "0.1.7"
+    "@glimmer/global-context" "0.84.2"
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/util" "0.84.2"
+
 "@glimmer/encoder@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/encoder/-/encoder-0.80.0.tgz#f529f525b44a94939b01e99c562e206bd9833df1"
@@ -1611,6 +1621,15 @@
     "@glimmer/interfaces" "0.80.0"
     "@glimmer/vm" "0.80.0"
 
+"@glimmer/encoder@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/encoder/-/encoder-0.84.2.tgz#3e6038f4115cde40a1252f13ae33774341325d40"
+  integrity sha512-599TMDNDHiw+PhNXy5/AnMjh83NBKy+tl2YmwSRY9qktx4DDOZenzgwZ5haLlzPaceejJ6ZNAoGyV5bBrDY5+w==
+  dependencies:
+    "@glimmer/env" "0.1.7"
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/vm" "0.84.2"
+
 "@glimmer/env@0.1.7", "@glimmer/env@^0.1.7":
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/@glimmer/env/-/env-0.1.7.tgz#fd2d2b55a9029c6b37a6c935e8c8871ae70dfa07"
@@ -1623,6 +1642,13 @@
   dependencies:
     "@glimmer/env" "^0.1.7"
 
+"@glimmer/global-context@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/global-context/-/global-context-0.84.2.tgz#cd4612925dbd68787b9270e91b213691150c307f"
+  integrity sha512-6FycLh/Eq0P3LA94bJL6WHPJyOTKeQD4KBWhowZ9TbeO3p4/WUr+POKPVEyfIx6YHybhpL9MGj45Y2r0hqVigw==
+  dependencies:
+    "@glimmer/env" "^0.1.7"
+
 "@glimmer/interfaces@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/interfaces/-/interfaces-0.80.0.tgz#eabc7551ffe7ad27c44ba96d39e2af6ebf01c942"
@@ -1630,6 +1656,13 @@
   dependencies:
     "@simple-dom/interface" "^1.4.0"
 
+"@glimmer/interfaces@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/interfaces/-/interfaces-0.84.2.tgz#764cf92c954adcd1a851e5dc68ec1f6b654dc3bd"
+  integrity sha512-tMZxQpOddUVmHEOuripkNqVR7ba0K4doiYnFd4WyswqoHPlxqpBujbIamQ+bWCWEF0U4yxsXKa31ekS/JHkiBQ==
+  dependencies:
+    "@simple-dom/interface" "^1.4.0"
+
 "@glimmer/low-level@0.78.2":
   version "0.78.2"
   resolved "https://registry.yarnpkg.com/@glimmer/low-level/-/low-level-0.78.2.tgz#bca5f666760ce98345e87c5b3e37096e772cb2de"
@@ -1647,14 +1680,27 @@
     "@glimmer/util" "0.80.0"
     "@glimmer/validator" "0.80.0"
 
-"@glimmer/node@0.80.0":
-  version "0.80.0"
-  resolved "https://registry.yarnpkg.com/@glimmer/node/-/node-0.80.0.tgz#afdd6acdd73f70b88a8e78e79f592139912047ce"
-  integrity sha512-wm3bSiWBljW5UwUII2MKu1GOLkaRha66c8RryiGP97uP0EriMXAUj9kAnhur+/oG15ME+Vp65zwx1nCVeXshYA==
+"@glimmer/manager@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/manager/-/manager-0.84.2.tgz#a96730388994a57517c45cbacf6ac481bdf1cd47"
+  integrity sha512-cXOnRTH9nwAe/un8hK0x6z1m67Cv5ywAuK7KRxAFTWHgGX/i6BvoZCStr6zJD/U6Frna2c7RJK8JpleP94opEA==
   dependencies:
-    "@glimmer/interfaces" "0.80.0"
-    "@glimmer/runtime" "0.80.0"
-    "@glimmer/util" "0.80.0"
+    "@glimmer/destroyable" "0.84.2"
+    "@glimmer/env" "0.1.7"
+    "@glimmer/global-context" "0.84.2"
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/reference" "0.84.2"
+    "@glimmer/util" "0.84.2"
+    "@glimmer/validator" "0.84.2"
+
+"@glimmer/node@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/node/-/node-0.84.2.tgz#74d4eb8fc58dbf5ed2b57af39a1f350548cf0469"
+  integrity sha512-kefGxH+0N0xNyb6QovdPzmIBefZwu8TID45qsASgVbFx7mfFiXjQiyaxbRUyam4MAEb8Nzzx1Byxn1FQCYyLdA==
+  dependencies:
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/runtime" "0.84.2"
+    "@glimmer/util" "0.84.2"
     "@simple-dom/document" "^1.4.0"
     "@simple-dom/interface" "^1.4.0"
 
@@ -1671,6 +1717,19 @@
     "@glimmer/vm" "0.80.0"
     "@glimmer/wire-format" "0.80.0"
 
+"@glimmer/opcode-compiler@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/opcode-compiler/-/opcode-compiler-0.84.2.tgz#df0fb70e2fdacb7c6f6ec3edd1c66a5639f2e2c9"
+  integrity sha512-KwTH9cWEW4Neu3jmD9ANMIQYBiEqPsLx+h55G+wYp5djyjiYwSJ7KhgMAB+wEHuvB6izp3XdSO6jDMgp3pp49A==
+  dependencies:
+    "@glimmer/encoder" "0.84.2"
+    "@glimmer/env" "0.1.7"
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/reference" "0.84.2"
+    "@glimmer/util" "0.84.2"
+    "@glimmer/vm" "0.84.2"
+    "@glimmer/wire-format" "0.84.2"
+
 "@glimmer/owner@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/owner/-/owner-0.80.0.tgz#ae5da1e4bf8121592afc920a88f3f6dda603606a"
@@ -1678,6 +1737,13 @@
   dependencies:
     "@glimmer/util" "0.80.0"
 
+"@glimmer/owner@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/owner/-/owner-0.84.2.tgz#423fd5b43fa49e95558456999be3ec0150742474"
+  integrity sha512-maZn642eXRImp/hOSa4nQmzMLEIywXwgahS/ZMuzD4HTTsA2SlEdjXSrVbRQYarYF8LkiJ7fpcKHkyNCe8SHrQ==
+  dependencies:
+    "@glimmer/util" "0.84.2"
+
 "@glimmer/program@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/program/-/program-0.80.0.tgz#5bcc2709757c36127568993a61e842351814b67e"
@@ -1690,6 +1756,18 @@
     "@glimmer/opcode-compiler" "0.80.0"
     "@glimmer/util" "0.80.0"
 
+"@glimmer/program@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/program/-/program-0.84.2.tgz#4cfb5bb3a31a221671f35817f31ad175ebf4fad7"
+  integrity sha512-Ohx+7H3+CSVHbC08trUK7fXC6ti9x0SQDC2Lwd7BMXmMyoOZHxdaKNrTJ+CsQ8nV1JkLfXhnvRDG08TqD5VHJw==
+  dependencies:
+    "@glimmer/encoder" "0.84.2"
+    "@glimmer/env" "0.1.7"
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/manager" "0.84.2"
+    "@glimmer/opcode-compiler" "0.84.2"
+    "@glimmer/util" "0.84.2"
+
 "@glimmer/reference@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/reference/-/reference-0.80.0.tgz#a69d4c43d2d85fc4b840e8a56a77b4480bac5774"
@@ -1701,6 +1779,17 @@
     "@glimmer/util" "0.80.0"
     "@glimmer/validator" "0.80.0"
 
+"@glimmer/reference@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/reference/-/reference-0.84.2.tgz#c8d91a3ba0b92a9430b6023d7b6f39dd56c79af1"
+  integrity sha512-hH0VD76OXMsGSHbqaqD64u1aBEqy//jhZtIaHGwAHNpTEX+zDtW3ka298KbAn2CZyDDrNAnuc2U1Vy4COR3zlA==
+  dependencies:
+    "@glimmer/env" "^0.1.7"
+    "@glimmer/global-context" "0.84.2"
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/util" "0.84.2"
+    "@glimmer/validator" "0.84.2"
+
 "@glimmer/runtime@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/runtime/-/runtime-0.80.0.tgz#ddf344cca65934e283edfcad002729315623c3b7"
@@ -1720,6 +1809,25 @@
     "@glimmer/wire-format" "0.80.0"
     "@simple-dom/interface" "^1.4.0"
 
+"@glimmer/runtime@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/runtime/-/runtime-0.84.2.tgz#3d4a565cf72762b0aab06982e5151f7e3c1ccdd8"
+  integrity sha512-mUefYwq8l4df61iWYsRKVYQUqAeCgeZ3fuYNRNbvKDudnT9bQXayJLqr6ZxwTVaDoeKjg+7lMjkDSDSvqoxfsA==
+  dependencies:
+    "@glimmer/destroyable" "0.84.2"
+    "@glimmer/env" "0.1.7"
+    "@glimmer/global-context" "0.84.2"
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/low-level" "0.78.2"
+    "@glimmer/owner" "0.84.2"
+    "@glimmer/program" "0.84.2"
+    "@glimmer/reference" "0.84.2"
+    "@glimmer/util" "0.84.2"
+    "@glimmer/validator" "0.84.2"
+    "@glimmer/vm" "0.84.2"
+    "@glimmer/wire-format" "0.84.2"
+    "@simple-dom/interface" "^1.4.0"
+
 "@glimmer/syntax@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/syntax/-/syntax-0.80.0.tgz#5f9c2e5824fdc8f88ec3e71861598c339b6777c1"
@@ -1739,6 +1847,15 @@
     "@glimmer/interfaces" "0.80.0"
     "@simple-dom/interface" "^1.4.0"
 
+"@glimmer/util@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/util/-/util-0.84.2.tgz#2711ba40f25f44b2ea309cad49f5c2622c6211bc"
+  integrity sha512-VbhzE2s4rmU+qJF3gGBTL1IDjq+/G2Th51XErS8MQVMCmE4CU2pdwSzec8PyOowqCGUOrVIWuMzEI6VoPM4L4w==
+  dependencies:
+    "@glimmer/env" "0.1.7"
+    "@glimmer/interfaces" "0.84.2"
+    "@simple-dom/interface" "^1.4.0"
+
 "@glimmer/validator@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/validator/-/validator-0.80.0.tgz#f93c221a681809e5e45451e21d58ad0a819a38c0"
@@ -1747,6 +1864,14 @@
     "@glimmer/env" "^0.1.7"
     "@glimmer/global-context" "0.80.0"
 
+"@glimmer/validator@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/validator/-/validator-0.84.2.tgz#29394d262cf8373fe20f4e225c1adc9857a4164b"
+  integrity sha512-9tpSmwiktsJDqriNEiFfyP+9prMSdk08THA6Ik71xS/sudBKxoDpul678uvyEYST/+Z23F8MxwKccC+QxCMXNA==
+  dependencies:
+    "@glimmer/env" "^0.1.7"
+    "@glimmer/global-context" "0.84.2"
+
 "@glimmer/vm-babel-plugins@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.80.0.tgz#e9a6b496501eed367b94c928dc48a954830af3b5"
@@ -1762,6 +1887,14 @@
     "@glimmer/interfaces" "0.80.0"
     "@glimmer/util" "0.80.0"
 
+"@glimmer/vm@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/vm/-/vm-0.84.2.tgz#ade992d1e4baea3e88d320ec06f3d3e173c236e9"
+  integrity sha512-IuQeDlh+AUOOX8QXc+ehPv5uFnqstQVZGplqqvPQRcKvsEalog88RC34dAEwFdB756SKjgRSw+N+nT3ZDNVlvA==
+  dependencies:
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/util" "0.84.2"
+
 "@glimmer/wire-format@0.80.0":
   version "0.80.0"
   resolved "https://registry.yarnpkg.com/@glimmer/wire-format/-/wire-format-0.80.0.tgz#bea3da7973a6a70611bf45cfc15592dbec132091"
@@ -1770,6 +1903,14 @@
     "@glimmer/interfaces" "0.80.0"
     "@glimmer/util" "0.80.0"
 
+"@glimmer/wire-format@0.84.2":
+  version "0.84.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/wire-format/-/wire-format-0.84.2.tgz#fa90d93b2f7c5baa1ef24d82d649892e6a1d8671"
+  integrity sha512-/FmbXSPFJAoIZ6qu28xVXpAdy2Ln++Ewe6mRHFpnudV1lUrBN+Q09A4j/RN/hpAkyz/8ai5W+5rHKuaWxoi4Dg==
+  dependencies:
+    "@glimmer/interfaces" "0.84.2"
+    "@glimmer/util" "0.84.2"
+
 "@handlebars/parser@~2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@handlebars/parser/-/parser-2.0.0.tgz#5e8b7298f31ff8f7b260e6b7363c7e9ceed7d9c5"
@@ -6583,6 +6724,11 @@ json-stringify-safe@~5.0.0:
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
   integrity "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus= sha512-ZClg6AaYvamvYEE82d3Iyd3vSSIjQ+odgjaTzRuO3s7toCdFKczob2i0zCh7JE8kWn17yvAWhUVxvqGwUalsRA=="
 
+json5@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
+  integrity sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=
+
 json5@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-1.0.1.tgz#779fb0018604fa854eacbf6252180d83543e3dbe"