Claude Code v2.1.33 Release Notes

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.