diff --git a/CHANGELOG.md b/CHANGELOG.md
index cce354eee..fbb62450b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ Only write entries that are worth mentioning to users.
 
 ## Unreleased
 
+## 1.51.0 (2026-09-21)
+
 **Highlights**: Kimi CLI is archived and no longer maintained, and this is the final release. Please migrate to [Kimi Code CLI](https://github.com/MoonshotAI/kimi-code); see the [migration guide](https://moonshotai.github.io/kimi-code/en/guides/migration)
 
 - Build: Mark `kimi-cli` and all packages in this repository as archived — no further releases, bug fixes, or security updates are planned
diff --git a/docs/en/release-notes/breaking-changes.md b/docs/en/release-notes/breaking-changes.md
index a52b4409c..ad38af90c 100644
--- a/docs/en/release-notes/breaking-changes.md
+++ b/docs/en/release-notes/breaking-changes.md
@@ -4,6 +4,8 @@ This page documents breaking changes in Kimi Code CLI releases and provides migr
 
 ## Unreleased
 
+## 1.51.0
+
 ### The `kimi-code` package on PyPI no longer installs Kimi CLI
 
 The `kimi-code` package on PyPI used to be an alias of Kimi CLI. It is now a stub that only prints instructions for installing the new Kimi Code CLI and exits with status 1. Kimi CLI itself is archived and no longer maintained.
diff --git a/docs/en/release-notes/changelog.md b/docs/en/release-notes/changelog.md
index 476cf359b..7aada2c6d 100644
--- a/docs/en/release-notes/changelog.md
+++ b/docs/en/release-notes/changelog.md
@@ -4,6 +4,8 @@ This page documents the changes in each Kimi Code CLI release.
 
 ## Unreleased
 
+## 1.51.0 (2026-09-21)
+
 **Highlights**: Kimi CLI is archived and no longer maintained, and this is the final release. Please migrate to [Kimi Code CLI](https://github.com/MoonshotAI/kimi-code); see the [migration guide](https://moonshotai.github.io/kimi-code/en/guides/migration)
 
 - Build: Mark `kimi-cli` and all packages in this repository as archived — no further releases, bug fixes, or security updates are planned
diff --git a/docs/zh/release-notes/breaking-changes.md b/docs/zh/release-notes/breaking-changes.md
index cb7e23a06..e52f14b55 100644
--- a/docs/zh/release-notes/breaking-changes.md
+++ b/docs/zh/release-notes/breaking-changes.md
@@ -4,6 +4,8 @@
 
 ## 未发布
 
+## 1.51.0
+
 ### PyPI 上的 `kimi-code` 包不再安装 Kimi CLI
 
 PyPI 上的 `kimi-code` 包原本是 Kimi CLI 的别名，现在改为一个占位包：运行时只打印新版 Kimi Code CLI 的安装说明，并以状态码 1 退出。Kimi CLI 本身已归档，不再维护。
diff --git a/docs/zh/release-notes/changelog.md b/docs/zh/release-notes/changelog.md
index 329c9378c..78e1b08ad 100644
--- a/docs/zh/release-notes/changelog.md
+++ b/docs/zh/release-notes/changelog.md
@@ -4,6 +4,8 @@
 
 ## 未发布
 
+## 1.51.0 (2026-09-21)
+
 **亮点**：Kimi CLI 已归档，不再维护，这是最后一个版本。请迁移至 [Kimi Code CLI](https://github.com/MoonshotAI/kimi-code)，详见 [迁移指南](https://moonshotai.github.io/kimi-code/zh/guides/migration)
 
 - Build：将 `kimi-cli` 及本仓库中的所有包标记为已归档——此后不再发布新版本、Bug 修复或安全更新
diff --git a/packages/kimi-code/pyproject.toml b/packages/kimi-code/pyproject.toml
index 53575d52d..bf3307323 100644
--- a/packages/kimi-code/pyproject.toml
+++ b/packages/kimi-code/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "kimi-code"
-version = "1.50.0"
+version = "1.51.0"
 description = "[Archived] Legacy PyPI package, NOT the new Kimi Code CLI. Install Kimi Code CLI from https://github.com/MoonshotAI/kimi-code"
 readme = "README.md"
 requires-python = ">=3.12"
diff --git a/pyproject.toml b/pyproject.toml
index 7ab4d803e..c45271547 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "kimi-cli"
-version = "1.50.0"
+version = "1.51.0"
 description = "[Archived] Legacy Python Kimi CLI, no longer maintained. Use Kimi Code CLI instead: https://github.com/MoonshotAI/kimi-code"
 readme = "README.md"
 requires-python = ">=3.12"
diff --git a/uv.lock b/uv.lock
index d82977593..2a82a7dfd 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1282,7 +1282,7 @@ wheels = [
 
 [[package]]
 name = "kimi-cli"
-version = "1.50.0"
+version = "1.51.0"
 source = { editable = "." }
 dependencies = [
     { name = "agent-client-protocol" },
@@ -1374,7 +1374,7 @@ dev = [
 
 [[package]]
 name = "kimi-code"
-version = "1.50.0"
+version = "1.51.0"
 source = { editable = "packages/kimi-code" }
 
 [[package]]