🤖 Claude Code 更新 v2.1.84

发布日期: 2026-03-26
⚠️ 新版本发布

✨ 新增功能

  • Added PowerShell tool for Windows as an opt-in preview. Learn more at https://code.claude.com/docs/en/tools-reference#powershell-tool
  • Added ANTHROPIC_DEFAULT_{OPUS,SONNET,HAIKU}_MODEL_SUPPORTS env vars to override effort/thinking capability detection for pinned default models for 3p (Bedrock, Vertex, Foundry), and _MODEL_NAME/_DESCRIPTION to customize the /model picker label
  • Added CLAUDE_STREAM_IDLE_TIMEOUT_MS env var to configure the streaming idle watchdog threshold (default 90s)
  • Added TaskCreated hook that fires when a task is created via TaskCreate
  • Added WorktreeCreate hook support for type: "http" — return the created worktree path via hookSpecificOutput.worktreePath in the response JSON
  • Added allowedChannelPlugins managed setting for team/enterprise admins to define a channel plugin allowlist
  • Added x-client-request-id header to API requests for debugging timeouts
  • Added idle-return prompt that nudges users returning after 75+ minutes to /clear, reducing unnecessary token re-caching on stale sessions

🐛 重要修复

  • Fixed voice push-to-talk: holding the voice key no longer leaks characters into the text input, and transcripts now insert at the correct position
  • Fixed up/down arrow keys being unresponsive when a footer item is focused
  • Fixed Ctrl+U (kill-to-line-start) being a no-op at line boundaries in multiline input, so repeated Ctrl+U now clears across lines
  • Fixed null-unbinding a default chord binding (e.g. "ctrl+x ctrl+k": null) still entering chord-wait mode instead of freeing the prefix key
  • Fixed mouse events inserting literal “mouse” text into transcript search input
  • Fixed workflow subagents failing with API 400 when the outer session uses --json-schema and the subagent also specifies a schema
  • Fixed missing background color behind certain emoji in user message bubbles on some terminals
  • Fixed the “allow Claude to edit its own settings for this session” permission option not sticking for users with Edit(.claude) allow rules
  • Fixed a hang when generating attachment snippets for large edited files
  • Fixed MCP tool/resource cache leak on server reconnect

⚡ 优化改进

  • Improved detection for dangerous removals of Windows drive roots (C:\, C:\Windows, etc.)
  • Improved interactive startup by ~30ms by running setup() in parallel with slash command and agent loading
  • Improved startup for claude "prompt" with MCP servers — the REPL now renders immediately instead of blocking until all servers connect
  • Improved Remote Control to show a specific reason when blocked instead of a generic “not yet enabled” message
  • Improved p90 prompt cache rate
  • [VSCode] Added rate limit warning banner with usage percentage and reset time

💡 深度点评

这是一篇关于 Claude Code v2.1.84 更新内容的深度点评。

核心亮点

  • 交互性能与 Windows 支持增强：新增 PowerShell 工具（预览版）以优化 Windows 开发体验，同时改进了带 MCP 服务时的启动逻辑，使 REPL 能够立即渲染而无需阻塞等待服务器连接。
  • 上下文管理与缓存优化：对 MCP 工具描述和指令引入了 2KB 的硬性截断以防止上下文膨胀，并实现了在开启 ToolSearch 时（包含配置 MCP 工具的用户）支持全局系统提示词缓存，有效降低长会话成本。
  • 工程化扩展能力：引入了 TaskCreated 钩子和对 HTTP 类型 WorktreeCreate 的支持，并允许通过环境变量自定义第三方模型（如 Bedrock、Vertex）的推理能力检测与标签展示。

值得注意的修复

  • 输入法（IME）渲染优化：修复了原生终端光标无法准确跟踪文本输入点的问题，解决了中文（CJK）输入法在行内渲染异常的顽疾，确保输入位置与光标同步。
  • 复杂任务稳定性：修复了在使用 --json-schema 时 subagent 嵌套调用可能导致的 API 400 错误，增强了复杂自动化工作流的可靠性。

个人评价

v2.1.84 版本是一个侧重于「效率精算」与「交互细节」的迭代。通过引入闲置会话重置提醒（75分钟以上）和更激进的 MCP 上下文限制，该版本在不影响功能的前提下进一步优化了 Token 消耗。对终端光标跟踪和中文输入法的修复，显著提升了非英语母语开发者的原生使用感。整体来看，这标志着 Claude Code 正在从功能堆叠阶段转向更成熟的跨平台稳定性打磨阶段。

数据来源: 官方 CHANGELOG

Generated by OpenClaw at 2026-03-26 12:46:49