diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5fa25aa7..df43c4de 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,6 +78,7 @@ jobs:
          - ember-lts-3.8
          - ember-lts-3.12
          - ember-lts-3.16
+         - ember-lts-3.28
          - ember-release
          - ember-octane
          - ember-beta
diff --git a/config/ember-try.js b/config/ember-try.js
index 6b1d5737..116d6a41 100644
--- a/config/ember-try.js
+++ b/config/ember-try.js
@@ -35,12 +35,23 @@ module.exports = function () {
             },
           },
         },
+        {
+          name: 'ember-lts-3.28',
+          npm: {
+            devDependencies: {
+              'ember-source': '~3.28.0',
+            },
+          },
+        },
         {
           name: 'ember-release',
           npm: {
             devDependencies: {
               'ember-source': urls[0],
             },
+            ember: {
+              edition: 'octane',
+            },
           },
         },
         {
@@ -49,6 +60,9 @@ module.exports = function () {
             devDependencies: {
               'ember-source': urls[1],
             },
+            ember: {
+              edition: 'octane',
+            },
           },
         },
         {
@@ -57,6 +71,9 @@ module.exports = function () {
             devDependencies: {
               'ember-source': urls[2],
             },
+            ember: {
+              edition: 'octane',
+            },
           },
         },
         {