Claude Code v1.0.9

# Claude Code v1.0.9 Changelog

• Added new internal metrics exporter (Nh1 class) that sends telemetry data to Anthropic's metrics endpoint
• Metrics are exported every 60 seconds to https://api.anthropic.com/api/claude_code/otel/metrics
• Includes service metadata, metric descriptions, and data points with timestamps
• Graceful shutdown support with configurable timeout

• Restructured OpenTelemetry initialization to support both external and internal metrics collection
• Added conditional logic for enabling internal metrics export (controlled by uB6() function, currently disabled)
• Improved error handling and logging for telemetry operations

• Replaced generic stream imports with more specific imports:
• Changed from import stream to import { PassThrough } for better tree-shaking
• Updated process import to use named import { cwd } instead of default import
• Added new utility variables for internal operations

• Refactored telemetry initialization function (renamed from Mk0 to Rk0)
• Improved separation of concerns between external and internal metrics readers
• Better error messages for OpenTelemetry timeout scenarios

• Bumped version from 1.0.8 to 1.0.9
• Updated all version references throughout the codebase

• Fixed potential race conditions in metrics export by tracking pending exports
• Improved attribute conversion to handle undefined and null values properly
• Enhanced timestamp handling for metric data points

The internal metrics feature appears to be prepared for future use but is currently disabled (the uB6() function returns false). When enabled, this feature will provide Anthropic with anonymous usage metrics to help improve Claude Code.