diff --git a/.release-plan.json b/.release-plan.json
new file mode 100644
index 0000000..5e49660
--- /dev/null
+++ b/.release-plan.json
@@ -0,0 +1,17 @@
+{
+  "solution": {
+    "glimmer-scoped-css": {
+      "impact": "major",
+      "oldVersion": "0.5.0",
+      "newVersion": "0.6.0",
+      "constraints": [
+        {
+          "impact": "major",
+          "reason": "Appears in changelog section :boom: Breaking Change"
+        }
+      ],
+      "pkgJSONPath": "./glimmer-scoped-css/package.json"
+    }
+  },
+  "description": "## Release (2024-09-04)\n\nglimmer-scoped-css 0.6.0 (major)\n\n#### :boom: Breaking Change\n* `failing-test-app`, `glimmer-scoped-css`, `test-app`\n  * [#38](https://github.com/cardstack/glimmer-scoped-css/pull/38) Change to require explicit scoping ([@backspace](https://github.com/backspace))\n\n#### :house: Internal\n* [#40](https://github.com/cardstack/glimmer-scoped-css/pull/40) dropping engines declaration ([@ef4](https://github.com/ef4))\n* [#39](https://github.com/cardstack/glimmer-scoped-css/pull/39) Add release-plan ([@ef4](https://github.com/ef4))\n\n#### Committers: 2\n- Buck Doyle ([@backspace](https://github.com/backspace))\n- Edward Faulkner ([@ef4](https://github.com/ef4))\n"
+}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 34f9cf5..58fbd90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## Release (2024-09-04)
+
+glimmer-scoped-css 1.0.0 (major)
+
+#### :boom: Breaking Change
+* `failing-test-app`, `glimmer-scoped-css`, `test-app`
+  * [#38](https://github.com/cardstack/glimmer-scoped-css/pull/38) Change to require explicit scoping ([@backspace](https://github.com/backspace))
+
+#### :house: Internal
+* [#40](https://github.com/cardstack/glimmer-scoped-css/pull/40) dropping engines declaration ([@ef4](https://github.com/ef4))
+* [#39](https://github.com/cardstack/glimmer-scoped-css/pull/39) Add release-plan ([@ef4](https://github.com/ef4))
+
+#### Committers: 2
+- Buck Doyle ([@backspace](https://github.com/backspace))
+- Edward Faulkner ([@ef4](https://github.com/ef4))
+
 
 
 
diff --git a/glimmer-scoped-css/package.json b/glimmer-scoped-css/package.json
index a08dbe5..feb9cb4 100644
--- a/glimmer-scoped-css/package.json
+++ b/glimmer-scoped-css/package.json
@@ -1,6 +1,6 @@
 {
   "name": "glimmer-scoped-css",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "The default blueprint for Embroider v2 addons.",
   "keywords": [],
   "repository": "",