New Features

Model Selection and Configuration

• Added model selection support: Users can now choose between different Claude models or use the default
• Claude 3.7 Sonnet (Fast and balanced · $3/$15 per Mtok)
• Claude 3.5 Sonnet (Previous generation · $3/$15 per Mtok)
• Claude 3.5 Haiku (Quick responses · $0.80/$4 per Mtok)
• Custom model configurations
• Environment variable support: Set your preferred model using ANTHROPIC_MODEL environment variable
• Platform-specific model routing: Automatic detection and routing for Bedrock (CLAUDE_CODE_USE_BEDROCK) and Vertex (CLAUDE_CODE_USE_VERTEX) platforms

Migration System

• New migration framework: Automated migration system for handling configuration and data migrations between versions
• Bundled migration support: Special handling for Bun runtime with embedded migration files
• Version tracking: Migration files are now included with version metadata (v0.2.101)

IDE Integration Improvements

• IDE lock file management: New functions for managing IDE integration lock files in ~/.claude/ide/
• Connection handling: Enhanced TCP connection support for IDE integrations using Node.js net module

User Interface Enhancements

• Relative time formatting: New utility for displaying human-readable relative timestamps (e.g., "2 hours ago", "in 3 days")
• Enhanced permission context: Improved tool permission handling system