Release archive

Claude Code v2.1.33 Release Notes

Major improvements to multi-agent workflows, memory persistence, and VSCode integration in Claude Code v2.1.33.

February 6, 2026 • 10 min read • By ClaudeWorld

The Claude Code team has released version 2.1.33, packed with significant enhancements to multi-agent workflows, memory management, and developer experience improvements across the platform.

What’s New

Enhanced Multi-Agent Workflows

This release introduces several powerful features for multi-agent development:

  • Agent Memory Persistence: Added memory frontmatter field support with user, project, or local scope, enabling agents to maintain context across sessions
  • New Workflow Hooks: TeammateIdle and TaskCompleted events provide better control over multi-agent coordination
  • Sub-Agent Restrictions: New Task(agent_type) syntax in agent “tools” frontmatter allows precise control over which sub-agents can be spawned
  • Fixed Tmux Integration: Agent teammate sessions now properly send and receive messages in tmux environments

Improved Developer Experience

  • Enhanced Skill Discovery: Plugin names are now displayed in skill descriptions and the /skills menu
  • Better Error Messages: API connection failures now show specific causes (ECONNREFUSED, SSL errors) instead of generic messages
  • Thinking Phase Protection: Fixed interruption issues when submitting messages during extended thinking phases
  • Session Management: The /resume command now displays clean titles instead of raw XML markup

VSCode Integration Enhancements

  • Remote Sessions: OAuth users can now browse and resume sessions directly from claude.ai
  • Enhanced Session Picker: Added git branch and message count display with branch name search support
  • UI Improvements: Fixed scroll-to-bottom issues on initial session load and session switching

Bug Fixes

  • Resolved API proxy compatibility issues with 404 errors on streaming endpoints
  • Fixed proxy settings not being applied to WebFetch and HTTP requests in Node.js builds
  • Corrected API errors when aborting mid-stream with whitespace text and thinking blocks
  • Fixed warnings about agent team availability on current plans

How to Update

Update to the latest version using your preferred method:

# Via npm
npm update claude-code

# Via yarn
yarn upgrade claude-code

# Via pip
pip install --upgrade claude-code

VSCode users should update through the Extensions marketplace or enable auto-updates for seamless upgrades.