diff --git a/.changeset/pre.json b/.changeset/pre.json
index da87351..c71e4f6 100644
--- a/.changeset/pre.json
+++ b/.changeset/pre.json
@@ -9,6 +9,8 @@
     "honest-rabbits-cry",
     "honest-taxis-tan",
     "kind-buckets-drop",
+    "light-parents-worry",
+    "real-jars-repeat",
     "spicy-worms-double",
     "stale-clocks-shake",
     "tender-socks-admire",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f9aac1..8a6171f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # @chialab/quantum
 
+## 1.0.0-alpha.9
+
+### Minor Changes
+
+- 51ddff0: Introducing `dangerouslyEnterRealms` global method.
+
+### Patch Changes
+
+- e1db415: Improve `TreeWalker` implementation.
+
 ## 1.0.0-alpha.8
 
 ### Patch Changes
diff --git a/package.json b/package.json
index 228cdad..1c35512 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@chialab/quantum",
   "description": "Custom elements composition made easy",
-  "version": "1.0.0-alpha.8",
+  "version": "1.0.0-alpha.9",
   "type": "module",
   "main": "src/index.js",
   "module": "src/index.js",