docs: upgrade v4.14.8 (#6520)

document/content/docs/self-host/upgrading/4-14/4148.en.mdx

 ---
-title: 'V4.14.8 (In Progress)'
+title: 'V4.14.8'
 description: 'FastGPT V4.14.8 Release Notes'
 ---
 
+## Upgrade Guide
 
-## New Features
+### Update Images
 
-1. Upgraded Next.js to version 15.
+- FastGPT image tag: v4.14.8
+- FastGPT commercial image tag: v4.14.8
+- fastgpt-plugin image tag: no update needed
+- mcp_server: no update needed
+- sandbox image tag: v4.14.8
+- AIProxy: no update needed
+- mongo: no update needed
 
-## Improvements
+## 🚀 New Features
 
-1. Compatible with MCP JSON Schema type values not in the enum type list.
+1. Upgraded Next.js to version 16 with rspack for local development, delivering 3–5× faster local development performance.
+2. Refactored the code sandbox with a unified isolation model, adding support for network requests and built-in dependency packages.
 
-## Bug Fixes
+## ⚙️ Improvements
 
-1. New SDK compatibility: consecutive calls to the same MCP service caused errors due to multiple connections.
+1. MCP JSON Schema `type` fields no longer need to be restricted to enum values.
+2. Updated the variable reference label in Knowledge Base search to use clearer, more intuitive wording.
+
+## 🐛 Bug Fixes
+
+1. New SDK compatibility: fixed errors caused by multiple connections when calling the same MCP service consecutively.
+2. Fixed incorrect ordering of text and tool outputs after saving when both are produced simultaneously.
+3. Fixed variable update logic where `$1` in input values was incorrectly replaced by a regex capture group.
+4. API Knowledge Base now returns the `title` of the uploaded file in the response; if no `title` was provided, the field is omitted.

document/content/docs/self-host/upgrading/4-14/4148.mdx

@@ -3,10 +3,21 @@ title: 'V4.14.8'
 description: 'FastGPT V4.14.8 更新说明'
 ---
 
+## 更新指南
+
+### 更新镜像
+
+- 更新 FastGPT 镜像 tag: v4.14.8
+- 更新 FastGPT 商业版镜像 tag: v4.14.8
+- 更新 fastgpt-plugin 镜像 tag: 无需更新
+- mcp_server 无需更新
+- 更新 sandbox 镜像 tag: v4.14.8
+- AIProxy 无需更新
+- mongo 无需更新
 
 ## 🚀 新增内容
 
-1. Next.js 版本升级到 16, 本地使用 rspacak，本地开发性能提高 3~5 倍。
+1. Next.js 版本升级到 16, 本地开发使用 rspacak，本地开发性能提高 3~5 倍。
 2. 重构代码沙盒，统一隔离方案，支持网络请求以及内置依赖包。
 
 ## ⚙️ 优化

document/data/doc-last-modified.json

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