---
title: "Claude Code v2.1.191 版本更新：性能优化、MCP 可靠性提升与体验改进"
source: "Claude Code：GitHub Releases（RSS）"
source_tier: "t1_5"
url: "https://github.com/anthropics/claude-code/releases/tag/v2.1.191"
permalink: "https://feed.astralor.com/items/itm_046437509ea59bc3a6ca4624"
published: "2026-06-24T21:58:12.000Z"
score: 68
channel: "ai"
tags: ["Anthropic","Claude Code","MCP","性能优化"]
---

# Claude Code v2.1.191 版本更新：性能优化、MCP 可靠性提升与体验改进

## 速览

Claude Code v2.1.191 版本带来了多项重要更新：新增 /rewind 命令支持在 /clear 后恢复对话，修复了流式响应时滚动位置跳转、后台代理永久停止问题，以及 Windows Terminal 下 /login URL 换行截断等 Bug。MCP 服务器能力发现及 OAuth 流程增加了网络错误重试机制，沙箱网络权限提示改为会话内记忆。流式响应 CPU 利用率降低约 37%，长期会话内存增长问题得到改善。

## 关键点

- 新增 /rewind 命令，支持在 /clear 后恢复对话
- 流式响应 CPU 使用率降低约 37%
- MCP 服务器能力发现与 OAuth 增加重试机制，提升可靠性
- 沙箱网络权限对话框改为会话内记忆，避免重复提示

## 全文

What's changed Added /rewind support for resuming a conversation from before /clear was run Fixed scroll position jumping to the bottom while reading earlier output during a streaming response Fixed background agents resurrecting after being stopped — stopping an agent from the tasks panel is now permanent Fixed /voice showing a generic "not available" message when disabled by an organization's policy — it now explains the restriction Fixed /login URL opening truncated in Windows Terminal when it wraps across lines Fixed Cmd+click on links in fullscreen mode for Ghostty over ssh/tmux Fixed claude agents sending builtin slash commands like /usage to background sessions as prompt text instead of showing a hint Fixed claude agents job rows showing full filesystem paths for pasted images instead of the [Image #N] placeholder Fixed hooks with comma-separated matchers (e.g. "Bash,PowerShell") silently never firing Fixed /permissions Recently-denied tab: approving a denial now persists on close instead of being silently discarded Fixed the agent panel jumping by one row when scrolling the roster past the overflow cap Fixed the welcome splash art overflowing the default 80×24 macOS Terminal window Fixed managed settings: forceRemoteSettingsRefresh now takes effect when set via MDM or file policy, and the fetch sends Cache-Control: no-cache to prevent proxies from serving stale responses Improved sandbox network permission dialog: hosts you allow with "Yes" are now remembered for the rest of the session instead of re-prompting on every connection Improved MCP server reliability: capability discovery (tools/list, prompts/list, resources/list) now retries transient network errors with short backoff Improved MCP OAuth: discovery and token requests now retry once after transient network errors, and headless environments skip the browser popup and go straight to the paste-the-URL prompt Improved MCP error messages: HTTP 404 errors now show the URL and point to your MCP config Improved vim mode prompt-history search (NORMAL /) to hint how to reach slash commands Reduced CPU usage during streaming responses by ~37% by coalescing text updates to 100ms Reduced long-session memory growth from terminal output cache

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引用前请核对原文;本文由星际流动整理:https://feed.astralor.com/items/itm_046437509ea59bc3a6ca4624