diff --git a/.release-plan.json b/.release-plan.json
deleted file mode 100644
index 55fc776b..00000000
--- a/.release-plan.json
+++ /dev/null
@@ -1,30 +0,0 @@
-{
-  "solution": {
-    "broccoli": {
-      "impact": "major",
-      "oldVersion": "3.5.2",
-      "newVersion": "4.0.0",
-      "tagName": "latest",
-      "constraints": [
-        {
-          "impact": "major",
-          "reason": "Appears in changelog section :boom: Breaking Change"
-        },
-        {
-          "impact": "patch",
-          "reason": "Appears in changelog section :bug: Bug Fix"
-        },
-        {
-          "impact": "patch",
-          "reason": "Appears in changelog section :memo: Documentation"
-        },
-        {
-          "impact": "patch",
-          "reason": "Appears in changelog section :house: Internal"
-        }
-      ],
-      "pkgJSONPath": "./package.json"
-    }
-  },
-  "description": "## Release (2025-11-11)\n\n* broccoli 4.0.0 (major)\n\n#### :boom: Breaking Change\n* `broccoli`\n  * [#510](https://github.com/broccolijs/broccoli/pull/510) Drop Node < 20; widen Node range up to 24, get CI running; revert unreleased change ([@kategengler](https://github.com/kategengler))\n\n#### :bug: Bug Fix\n* `broccoli`\n  * [#531](https://github.com/broccolijs/broccoli/pull/531) remove esm package and bump minimum node version to v20.19 ([@mansona](https://github.com/mansona))\n  * [#513](https://github.com/broccolijs/broccoli/pull/513) Convert to pnpm + upgrades ([@kategengler](https://github.com/kategengler))\n\n#### :memo: Documentation\n* `broccoli`\n  * [#517](https://github.com/broccolijs/broccoli/pull/517) Remove broken website link ([@kategengler](https://github.com/kategengler))\n\n#### :house: Internal\n* `broccoli`\n  * [#529](https://github.com/broccolijs/broccoli/pull/529) Add release-plan ([@kategengler](https://github.com/kategengler))\n  * [#528](https://github.com/broccolijs/broccoli/pull/528) Upgrade prettier ([@kategengler](https://github.com/kategengler))\n  * [#527](https://github.com/broccolijs/broccoli/pull/527) Upgrade dev deps ([@kategengler](https://github.com/kategengler))\n  * [#518](https://github.com/broccolijs/broccoli/pull/518) Update lockfile after removing https package ([@kategengler](https://github.com/kategengler))\n  * [#504](https://github.com/broccolijs/broccoli/pull/504) Remove https npm library as it doesn't and cannot do anything ([@spthiel](https://github.com/spthiel))\n  * [#516](https://github.com/broccolijs/broccoli/pull/516) Fixes after branch rename to main ([@kategengler](https://github.com/kategengler))\n\n#### Committers: 3\n- Chris Manson ([@mansona](https://github.com/mansona))\n- Katie Gengler ([@kategengler](https://github.com/kategengler))\n- [@spthiel](https://github.com/spthiel)\n"
-}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50a3d7fe..8e54de89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,36 +1,5 @@
 # Changelog
 
-## Release (2025-11-11)
-
-* broccoli 4.0.0 (major)
-
-#### :boom: Breaking Change
-* `broccoli`
-  * [#510](https://github.com/broccolijs/broccoli/pull/510) Drop Node < 20; widen Node range up to 24, get CI running; revert unreleased change ([@kategengler](https://github.com/kategengler))
-
-#### :bug: Bug Fix
-* `broccoli`
-  * [#531](https://github.com/broccolijs/broccoli/pull/531) remove esm package and bump minimum node version to v20.19 ([@mansona](https://github.com/mansona))
-  * [#513](https://github.com/broccolijs/broccoli/pull/513) Convert to pnpm + upgrades ([@kategengler](https://github.com/kategengler))
-
-#### :memo: Documentation
-* `broccoli`
-  * [#517](https://github.com/broccolijs/broccoli/pull/517) Remove broken website link ([@kategengler](https://github.com/kategengler))
-
-#### :house: Internal
-* `broccoli`
-  * [#529](https://github.com/broccolijs/broccoli/pull/529) Add release-plan ([@kategengler](https://github.com/kategengler))
-  * [#528](https://github.com/broccolijs/broccoli/pull/528) Upgrade prettier ([@kategengler](https://github.com/kategengler))
-  * [#527](https://github.com/broccolijs/broccoli/pull/527) Upgrade dev deps ([@kategengler](https://github.com/kategengler))
-  * [#518](https://github.com/broccolijs/broccoli/pull/518) Update lockfile after removing https package ([@kategengler](https://github.com/kategengler))
-  * [#504](https://github.com/broccolijs/broccoli/pull/504) Remove https npm library as it doesn't and cannot do anything ([@spthiel](https://github.com/spthiel))
-  * [#516](https://github.com/broccolijs/broccoli/pull/516) Fixes after branch rename to main ([@kategengler](https://github.com/kategengler))
-
-#### Committers: 3
-- Chris Manson ([@mansona](https://github.com/mansona))
-- Katie Gengler ([@kategengler](https://github.com/kategengler))
-- [@spthiel](https://github.com/spthiel)
-
 # master
 
 ## v3.5.2 (2021-05-03)
diff --git a/package.json b/package.json
index 75fd7187..7bdcad4e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "broccoli",
-  "version": "4.0.0",
+  "version": "3.5.2",
   "description": "Fast client-side asset builder",
   "keywords": [
     "asset",