diff --git a/CHANGELOG.md b/CHANGELOG.md
index c451627..43a9119 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 
 ## [Unreleased]
 
+## [0.3.0] — 2026-10-01
+
+One feature: `order`, a caller-supplied traversal.
+
+- **`order?: OrderFn`** replaces the preset's traversal — the seam the layered design always
+  left open, now reachable from an option. **Free in both renderers**: the CSS host derives
+  each cell's `animation-delay` from the same traversal value, so a custom traversal costs
+  zero per-frame JS there too. A custom _envelope_ would not be free — the CSS animation is
+  one shared `@keyframes` per preset — which is why this is traversal only.
+- `OrderFn`'s fifth argument stays optional, so an existing four-argument traversal is still
+  valid and one with no sense of direction need not accept it.
+- **It is a function, so it is not copyable.** The playground's copy button omits it rather
+  than emitting a prop that would not compile.
+
 ### Changed
 
 - **Two lines of small grey text are gone.** T
diff --git a/CHANGELOG.zh.md b/CHANGELOG.zh.md
index 341c453..5127610 100644
--- a/CHANGELOG.zh.md
+++ b/CHANGELOG.zh.md
@@ -2,6 +2,19 @@
 
 ## [Unreleased]
 
+## [0.3.0] — 2026-10-01
+
+一个特性：`order`，由调用方提供的遍历。
+
+- **`order?: OrderFn`** 替换 preset 自带的遍历 —— 这是分层设计一直留着的接缝，现在能从
+  option 到达。**在两个渲染器下都免费**：CSS host 从同一个遍历值导出每格的
+  `animation-delay`，所以自定义遍历在那里同样每帧零 JS。而自定义 _envelope_ 不会免费 ——
+  CSS 动效是每个 preset 一份共享的 `@keyframes` —— 这正是只做遍历层的原因。
+- `OrderFn` 的第五个参数保持可选，因此既有的四参数遍历仍然有效，没有方向概念的遍历也
+  不必接受它。
+- **它是函数，因此无法被复制。** Playground 的复制按钮会略过它，而不是输出一个编译不过
+  的 prop。
+
 ### 变更
 
 - **两行灰色小字已移除。** 复制按钮上方写着"你调过的参数，只多不少"，颜色拾色器写着"{value} 会原样传给引擎 —— 这里无法编辑它"。两句都是在复述一行之外就能看到的东西：片段就是片段，而字段本来就显示着它持有的值。对读者已经能看到的同一件事再做一份更小的复述，就是那种人们不再读的文字，而它正好夹在控件和即将按下的按钮之间。
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 6fd2889..a6d9a3f 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@botharness/botui",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "Install BotUI components into your project — copy-and-own, like shadcn",
   "keywords": [
     "agent-ui",
diff --git a/packages/core/package.json b/packages/core/package.json
index d20118d..7772157 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@botharness/botui-core",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "The framework-agnostic engine behind BotUI components",
   "keywords": [
     "agent-ui",
diff --git a/packages/react/package.json b/packages/react/package.json
index 9a16696..f625866 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@botharness/botui-react",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "React bindings for BotUI components",
   "keywords": [
     "agent-ui",