Claude Code 2.1.49 发布：增强 MCP 认证、新增 worktree 隔离与性能优化

AI 摘要

Claude Code 2.1.49 版本发布，改进了 MCP OAuth 认证、新增 git worktree 隔离支持、后台代理管理及多项性能修复。同时，Max 计划中的 Sonnet 4.5 1M 上下文模型被 Sonnet 4.6 取代，并新增 ConfigChange 钩子事件以增强企业安全审计。

正文节选

- Improved MCP OAuth authentication with step-up auth support and discovery caching, reducing redundant network requests during server connections - Added `--worktree` (`-w`) flag to start Claude in an isolated git worktree - Subagents support `isolation: "worktree"` for working in a temporary git worktree - Added Ctrl+F keybinding to kill background agents (two-press confirmation) - Agent definitions support `background: true` to always run as a background task - Plugins can ship `settings.json

发布时间：—

抓取时间：2026-09-07 03:46

来源机构：Anthropic