diff --git a/packages/jco-transpile/CHANGELOG.md b/packages/jco-transpile/CHANGELOG.md
index bcb8bc956..00fe04237 100644
--- a/packages/jco-transpile/CHANGELOG.md
+++ b/packages/jco-transpile/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [0.12.0] - 2026-08-24
+
+### 🚀 Features
+
+- _(transpile)_ support wit unpacking from components by @vados-cosmonic
+
+### 🧪 Testing
+
+- _(transpile)_ enable upstream WAST execution by @vados-cosmonic
+
+- _(transpile)_ cover may-leave enforcement by @vados-cosmonic in #1942
+
+### ⚙️ Miscellaneous Tasks
+
+- _(transpile)_ update preview3-shim, preview3-shim by @vados-cosmonic
+
 ## [0.11.0] - 2026-08-21
 
 ### 🚀 Features
diff --git a/packages/jco-transpile/package.json b/packages/jco-transpile/package.json
index b432ce377..c44d6f05c 100644
--- a/packages/jco-transpile/package.json
+++ b/packages/jco-transpile/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@bytecodealliance/jco-transpile",
-    "version": "0.11.0",
+    "version": "0.12.0",
     "description": "WebAssembly Component transpilation functionality for Jco",
     "keywords": [
         "Component",