diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8812321..e4ac357 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,19 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and
 
 [中文版](CHANGELOG.zh.md) · [README](README.md) · [Contributing](CONTRIBUTING.md)
 
+## [1.21.0] - 2026-09-07
+
+### Added
+
+- **Managed Agent directory projects** — initialize, validate, build, and publish local projects with Agent-scoped resource configuration and resource examples.
+- **Local project versions** — enable or disable snapshot versioning, list and preview history, and restore project files without Git.
+- **Project Workbench** — edit resources, review changes, publish updates, and manage local versions in a browser.
+
+### Changed
+
+- **Playground version resolution** — check npm before launch, reuse matching local versions, and fetch the latest version when needed; retain explicit version and binary overrides.
+- **Managed Agent SDK** — upgrade to `0.7.0` and consume project workspace and version services through SDK subpath exports.
+
 ## [1.20.0] - 2026-09-03
 
 > Managed Agents now combines YAML-first infrastructure management with direct Bailian AgentStudio resource and runtime operations.
diff --git a/CHANGELOG.zh.md b/CHANGELOG.zh.md
index dcfbba2..4e08c3e 100644
--- a/CHANGELOG.zh.md
+++ b/CHANGELOG.zh.md
@@ -6,6 +6,19 @@
 
 [English](CHANGELOG.md) · [README](README.zh.md) · [参与贡献](CONTRIBUTING.zh.md)
 
+## [1.21.0] - 2026-09-07
+
+### 新增
+
+- **Managed Agent 目录项目** —— 支持初始化、校验、构建和发布本地项目，按 Agent 组织资源配置，并提供资源示例。
+- **本地项目版本管理** —— 无需 Git 即可启停快照版本管理、查看和预览历史，以及恢复项目文件。
+- **项目 Workbench** —— 在浏览器中编辑资源、审阅变更、发布更新和管理本地版本。
+
+### 变更
+
+- **Playground 版本选择** —— 启动前查询 npm，复用版本一致的本地安装，否则按需下载最新版；保留显式版本和启动文件覆盖。
+- **Managed Agent SDK** —— 升级至 `0.7.0`，通过 SDK 子路径复用项目目录和版本服务。
+
 ## [1.20.0] - 2026-09-03
 
 > Managed Agent 现在同时提供 YAML-first 基础设施管理与百炼 AgentStudio 资源、运行时 API 操作。
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 5c8ee4d..aa42cac 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bailian-cli",
-  "version": "1.20.0",
+  "version": "1.21.0",
   "description": "CLI for Aliyun Model Studio (DashScope) AI Platform.",
   "keywords": [
     "agent",
diff --git a/packages/commands/package.json b/packages/commands/package.json
index 440be5f..040d3b6 100644
--- a/packages/commands/package.json
+++ b/packages/commands/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bailian-cli-commands",
-  "version": "1.20.0",
+  "version": "1.21.0",
   "description": "Command library for bailian-cli products (knowledge, memory, media, …). See https://www.npmjs.com/package/bailian-cli for usage.",
   "homepage": "https://bailian.console.aliyun.com/cli",
   "bugs": {
diff --git a/packages/core/package.json b/packages/core/package.json
index 6c3db39..3b17caf 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bailian-cli-core",
-  "version": "1.20.0",
+  "version": "1.21.0",
   "description": "Core SDK for bailian-cli. See https://www.npmjs.com/package/bailian-cli for usage.",
   "homepage": "https://bailian.console.aliyun.com/cli",
   "bugs": {
diff --git a/packages/kscli/package.json b/packages/kscli/package.json
index fc8dad4..84fbdb0 100644
--- a/packages/kscli/package.json
+++ b/packages/kscli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "knowledge-studio-cli",
-  "version": "1.20.0",
+  "version": "1.21.0",
   "description": "Lightweight RAG CLI for Aliyun Model Studio — focused on knowledge-base retrieval.",
   "keywords": [
     "alibaba-cloud",
diff --git a/packages/runtime/package.json b/packages/runtime/package.json
index e86a528..7596288 100644
--- a/packages/runtime/package.json
+++ b/packages/runtime/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bailian-cli-runtime",
-  "version": "1.20.0",
+  "version": "1.21.0",
   "description": "Runtime framework for bailian-cli (createCli, registry, args, output, pipeline). See https://www.npmjs.com/package/bailian-cli for usage.",
   "homepage": "https://bailian.console.aliyun.com/cli",
   "bugs": {
diff --git a/skills/bailian-cli/SKILL.md b/skills/bailian-cli/SKILL.md
index 7efd2e9..57fa84e 100644
--- a/skills/bailian-cli/SKILL.md
+++ b/skills/bailian-cli/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: bailian-cli
 metadata:
-  version: "1.20.0"
+  version: "1.21.0"
   requires:
     bins: ["bl"]
 description: >-
diff --git a/skills/bailian-finetune/SKILL.md b/skills/bailian-finetune/SKILL.md
index d9336e8..d645812 100644
--- a/skills/bailian-finetune/SKILL.md
+++ b/skills/bailian-finetune/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: bailian-finetune
 metadata:
-  version: "1.20.0"
+  version: "1.21.0"
   requires:
     bins: ["bl"]
 description: >-
diff --git a/skills/bailian-gen/SKILL.md b/skills/bailian-gen/SKILL.md
index 29dea9d..7addc20 100644
--- a/skills/bailian-gen/SKILL.md
+++ b/skills/bailian-gen/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: bailian-gen
 metadata:
-  version: "1.20.0"
+  version: "1.21.0"
   requires:
     bins: ["bl"]
 description: >-
diff --git a/skills/bailian-managed-agent/SKILL.md b/skills/bailian-managed-agent/SKILL.md
index 3df081f..9b437fe 100644
--- a/skills/bailian-managed-agent/SKILL.md
+++ b/skills/bailian-managed-agent/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: bailian-managed-agent
 metadata:
-  version: "1.20.0"
+  version: "1.21.0"
   requires:
     bins: ["bl"]
 description: >-
diff --git a/skills/bailian-protocol/SKILL.md b/skills/bailian-protocol/SKILL.md
index 8e1bb5a..0da22e4 100644
--- a/skills/bailian-protocol/SKILL.md
+++ b/skills/bailian-protocol/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: bailian-protocol
 metadata:
-  version: "1.20.0"
+  version: "1.21.0"
   requires:
     bins: ["bl"]
 description: >-
diff --git a/skills/bailian-web-search/SKILL.md b/skills/bailian-web-search/SKILL.md
index 0030e3d..89d09a2 100644
--- a/skills/bailian-web-search/SKILL.md
+++ b/skills/bailian-web-search/SKILL.md
@@ -1,7 +1,7 @@
 ---
 name: bailian-web-search
 metadata:
-  version: "1.20.0"
+  version: "1.21.0"
   requires:
     bins: ["bl"]
 description: >-