如果你在用 Claude Code，这版修复了十几个烦人 bug，特别是 /rewind 和后台代理，MCP 也更稳了，CPU 还降了 37%，赶紧更新。
Claude Code v2.1.191 修复了 /rewind 在 /clear 后恢复对话的支持，并解决了滚动跳跃、后台代理停止后复活等问题。MCP 服务器可靠性改进：capability discovery 对 transient 网络错误自动重试并带有短退避。MCP OAuth 增加一次重试，headless 环境跳过浏览器弹窗直接粘贴 URL。CPU 使用率降低约 37% 通过 coalescing text updates 到 100ms。
v2.1.191
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