diff --git a/CHANGELOG.md b/CHANGELOG.md
index adede049..5c529e59 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,24 @@
 
 ## [Unreleased]
 
+## [0.4.20] - 2026-09-21
+
+### 新增
+- 对话：长对话左侧出现聊天大纲，点刻度可跳到自己发出的消息；悬停预览，当前轮高亮
+- 对话：顶栏可切换会话，Alt+↑ / Alt+↓ 切上一条 / 下一条
+- 对话：本轮改过的文件会列出来，点「查看修改」可预览
+
+### 改进
+- 对话：历史按工作目录分组，侧栏入口改成「工作区」；组标题显示文件夹名，悬停看路径，加号开新会话
+- 对话：思考过程和工具分开显示；思考是可折叠段，完成后写时长
+- 对话：计划条标出待做 / 进行中 / 已完成，可收起；Claude 新对话的任务清单接到计划条
+- 对话：顶栏不再写这次怎么接；从历史继续时，对上对方会话就复用
+- 用量：刷新嵌入的模型单价
+
+### 修复
+- 对话：宽面板下聊天大纲会挂上可点刻度，不再只留下看不见的测量层
+- 对话：点「新建对话」不再因循环引用卡住
+
 ## [0.4.19] - 2026-09-17
 
 ### 新增
diff --git a/Cargo.lock b/Cargo.lock
index 56fa8dbd..a64f20ef 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,7 +10,7 @@ checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"
 
 [[package]]
 name = "agenthub-cli"
-version = "0.4.19"
+version = "0.4.20"
 dependencies = [
  "agenthub-core",
  "clap",
@@ -24,7 +24,7 @@ dependencies = [
 
 [[package]]
 name = "agenthub-core"
-version = "0.4.19"
+version = "0.4.20"
 dependencies = [
  "async-stream",
  "axum",
@@ -63,7 +63,7 @@ dependencies = [
 
 [[package]]
 name = "agenthub-gui"
-version = "0.4.19"
+version = "0.4.20"
 dependencies = [
  "agenthub-core",
  "base64 0.22.1",
diff --git a/Cargo.toml b/Cargo.toml
index 87ff675b..87540c18 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.4.19"
+version = "0.4.20"
 edition = "2021"
 license = "MIT"
 authors = ["AgentHub"]
diff --git a/package.json b/package.json
index 7fb592d3..e44b6946 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "agenthub",
   "private": true,
-  "version": "0.4.19",
+  "version": "0.4.20",
   "description": "Multi-agent desktop hub: install runtimes, manage providers/accounts, skills, usage, and chat",
   "license": "MIT",
   "repository": {