release
Claude Code

Claude Code 2.1.301 adds OpenTelemetry tracing guidance and LaTeX math rendering

Adds OpenTelemetry tracing guidance for API debugging and monitoring. Introduces LaTeX math rendering in VS Code responses, supporting $$ blocks, inline $...$ notation, and \[...\] blocks. Improves workflow rendering performance with incremental progress updates.

Stacks this affects

Claude Code ships in 4 tested stacks here.

Claude Code MCP setup
Code · Agent setup
$50/mo
Claude Code setup
Code · Agent setup
$50/mo
Claude Code only
Code · Workflow
$50/mo
Ship code with AI
Code · Workflow
$50/mo
All Claude Code changes and pricing

More Claude Code

releaseClaude Code 2.1.300 adds OpenTelemetry GenAI semantic conventions and Slack/workflow enhancementsfeatureSonnet 5.5 cache read pricing reduced from $0.20 to $0.10 per million tokensfeatureAdded allow_large option to Read tool for reading text files larger than default limitsfeatureAdded autoCompactWindow to subagent frontmatter for earlier context compressionfeatureAdded CLAUDE_CODE_WORKFLOW_SUBAGENT_MODEL environment variable for workflow model selection