Claude Code v0.2.30

# Claude Code v0.2.30 Changelog

• Introduced AM class for temporary file management with automatic cleanup
• Provides methods for writing, reading, checking existence, and getting file size
• Files are stored in system temp directory with pattern /tmp/claude-{id}-{type}
• Includes automatic size checking and deletion capabilities

• Added 256-color terminal support with new s6() function that converts RGB colors to ANSI 256-color codes
• Provides better color accuracy for terminals supporting extended color palettes
• Automatically maps RGB values to nearest 256-color equivalent
• Handles grayscale colors separately for better accuracy

• Enhanced IDE and terminal detection in mX4() function
• Now detects Cursor, Windsurf, and all JetBrains IDEs (PyCharm, IntelliJ, WebStorm, etc.)
• Checks __CFBundleIdentifier environment variable for more accurate IDE detection
• Better support for development environments beyond traditional terminals

• New automatic package manager discovery
• OX4: Detects available Node.js package managers (npm, yarn, pnpm)
• TX4: Detects JavaScript runtimes (bun, deno, node)
• uX4: Specifically checks if running under Bun runtime
• Enables smarter dependency installation based on available tools

• Enhanced API key storage with macOS Keychain integration
• New Jc() function retrieves API keys from macOS Keychain when available
• Y30() function stores API keys securely in Keychain on macOS
• Falls back to configuration file storage on other platforms
• Improved security for API key handling

• XM(): Tracks API usage costs and duration metrics
• Dj(): Returns total lines removed during operations
• al1(): Returns timestamp of last user interaction
• Hj(): Executes commands with timeout and proper error handling

• New Oz() function filters out progress messages from conversation history
• Improves performance by removing non-essential messages
• Keeps conversation focused on actual content

• Updated internal flag from token-efficient-tools-2024-12-11 to token-efficient-tools-2025-02-19
• Indicates optimizations for reduced token usage in tool operations

• New Xj variable defines maximum file size based on vX4 configuration
• Better handling of large file operations

Several internal functions and variables were removed, likely replaced by the new implementations:

• Removed standalone terminal detection function (replaced by enhanced mX4())
• Removed various UI components related to sticker requests and animations
• Cleaned up deprecated color theme definitions
• Removed unused import statements and helper functions

The update focuses on improving the foundation of Claude Code with better environment detection, secure API key management, and enhanced performance tracking. The new color system provides better visual consistency across different terminal types, while the package manager detection enables smarter dependency handling.