Claude Code v2.1.47 → v2.1.49: Git Worktree Isolation

[claude-yolo]

WHY users should care: Game-changing isolation features for safer development workflows

🚀 Key features:

• --worktree flag for isolated git environments
• Background agent management (Ctrl+F to kill)
• Plugin default settings support
• Sonnet 4.5 → 4.6 migration on Max plan

⚡ Performance wins:

• Fixed memory leaks in long sessions
• Faster startup with auth caching

Links: #689

💤 Auto-created by claude-yolo day shift