diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1def333b7..d48dbe6c89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - PREVIEW: Moved the copy descriptions to dedicated folders. [#4310](https://github.com/microsoft/kiota/issues/4310)
 - PREVIEW: Renamed the config to workspace file. [#4310](https://github.com/microsoft/kiota/issues/4310)
 - Changed Csharp code generation to put braces on new lines (where it makes sense). [#4347](https://github.com/microsoft/kiota/issues/4347)
+- TypeScript is now a preview language!
 
 ## [1.12.0] - 2024-03-06
 
diff --git a/src/kiota/appsettings.json b/src/kiota/appsettings.json
index 7dbe24b66d..d4b156635a 100644
--- a/src/kiota/appsettings.json
+++ b/src/kiota/appsettings.json
@@ -129,7 +129,7 @@
       "DependencyInstallCommand": "go get {0}@{1}"
     },
     "TypeScript": {
-      "MaturityLevel": "Experimental",
+      "MaturityLevel": "Preview",
       "Dependencies": [
         {
           "Name": "@microsoft/kiota-abstractions",
@@ -284,4 +284,4 @@
       "DependencyInstallCommand": "dotnet add package {0} --version {1}"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/vscode/microsoft-kiota/l10n/bundle.l10n.zh-cn.json b/vscode/microsoft-kiota/l10n/bundle.l10n.zh-cn.json
index 81f15385da..4a24b4c5c0 100644
--- a/vscode/microsoft-kiota/l10n/bundle.l10n.zh-cn.json
+++ b/vscode/microsoft-kiota/l10n/bundle.l10n.zh-cn.json
@@ -22,7 +22,7 @@
   "Enter an output path relative to the root of the project": "请输入相对根路径的输出路径",
   "Pick a language": "请选择一个语言",
   "Downloading kiota requires an internet connection. Please check your connection and try again.": "下载Kiota需要网络连接。请检查您是否成功连接网络。",
-  "Kiota download failed. Try closing all Visual Studio Code windows and open only one. Check the extension host logs for more information.": "Kiota下载失败。请检查托管扩展记录。",
+  "Kiota download failed. Try closing all Visual Studio Code windows and open only one. Check the extension host logs for more information.": "Kiota 下载失败。请尝试关闭所有 Visual Studio Code 窗口并仅打开一个窗口。查看扩展主机日志以获取更多信息。",
   "Downloading kiota...": "正在下载Kiota...",
   "Generating client...": "正在生成客户端...",
   "Updating clients...": "正在更新客户端...",