v2.1.33 Claude Code Release Notes

Feb 6, 2026

Claude's Analysisby Sonnet 4.6

Multi-agent workflows gain hooks (TeammateIdle/TaskCompleted), agent spawning controls, and persistent memory scopes; VS Code adds remote session browsing via OAuth.

Changes

Total Changes (vs Average)

1.4×

Version Type

Patch

Release Focus

Mixed

Days Since Prior Release

Release # This Month

#4 of 28

Bug Fix Ratio

50%

Post-Release Edits

—

Change Category

Ecosystem Impact

VS Code features in 4 of the last 10 releases — one of the most consistently active non-General platforms. Remote session support via claude.ai extends editor integration beyond local development, a pattern not seen in prior VS Code updates.

Key Themes

5Multi-agent infrastructure expansion|3API & proxy reliability|3VS Code session management|5Core stability and UX polish

May Help If You've Noticed

Agent sessions in tmux aren't delivering or receiving messages between teammates

Added6 changes

•Added TeammateIdle and TaskCompleted hook events for multi-agent workflows
•Added support for restricting which sub-agents can be spawned via Task(agent_type) syntax in agent "tools" frontmatter
•Added memory frontmatter field support for agents, enabling persistent memory with user, project, or local scope
•Added plugin name to skill descriptions and /skills menu for better discoverability
•VSCode: Added support for remote sessions, allowing OAuth users to browse and resume sessions from claude.ai
•VSCode: Added git branch and message count to the session picker, with support for searching by branch name

Improved1 change

•Improved error messages for API connection failures — now shows specific cause (e.g., ECONNREFUSED, SSL errors) instead of generic "Connection error"

Fixed8 changes

•Fixed agent teammate sessions in tmux to send and receive messages
•Fixed warnings about agent teams not being available on your current plan
•Fixed an issue where submitting a new message while the model was in extended thinking would interrupt the thinking phase
•Fixed an API error that could occur when aborting mid-stream, where whitespace text combined with a thinking block would bypass normalization and produce an invalid request
•Fixed API proxy compatibility issue where 404 errors on streaming endpoints no longer triggered non-streaming fallback
•Fixed an issue where proxy settings configured via settings.json environment variables were not applied to WebFetch and other HTTP requests on the Node.js build
•Fixed /resume session picker showing raw XML markup instead of clean titles for sessions started with slash commands
•VSCode: Fixed scroll-to-bottom under-scrolling on initial session load and session switch

Other1 change

•Errors from invalid managed settings are now surfaced

Added6 changes

•Added TeammateIdle and TaskCompleted hook events for multi-agent workflows

•Added support for restricting which sub-agents can be spawned via Task(agent_type) syntax in agent "tools" frontmatter

•Added memory frontmatter field support for agents, enabling persistent memory with user, project, or local scope

•Added plugin name to skill descriptions and /skills menu for better discoverability

•VSCode: Added support for remote sessions, allowing OAuth users to browse and resume sessions from claude.ai

•VSCode: Added git branch and message count to the session picker, with support for searching by branch name

Fixed8 changes

•Fixed agent teammate sessions in tmux to send and receive messages

•Fixed warnings about agent teams not being available on your current plan

•Fixed an issue where submitting a new message while the model was in extended thinking would interrupt the thinking phase

•Fixed an API error that could occur when aborting mid-stream, where whitespace text combined with a thinking block would bypass normalization and produce an invalid request

•Fixed API proxy compatibility issue where 404 errors on streaming endpoints no longer triggered non-streaming fallback

•Fixed an issue where proxy settings configured via settings.json environment variables were not applied to WebFetch and other HTTP requests on the Node.js build

•Fixed /resume session picker showing raw XML markup instead of clean titles for sessions started with slash commands

•VSCode: Fixed scroll-to-bottom under-scrolling on initial session load and session switch

v2.1.33 Claude Code Release Notes

Changes in Claude Code v2.1.33

Added6 changes

Improved1 change

Fixed8 changes

Other1 change

v2.1.33 Claude Code Release Notes

Changes in Claude Code v2.1.33

Added6 changes

Improved1 change

Fixed8 changes

Other1 change