Claude Code v1.0.4

# Claude Code v1.0.4 Changelog

• New Model Recognition: Added support for recognizing additional Claude models including:
• Claude Sonnet 4
• Claude Opus 4
• Claude 3.7 Sonnet
• Claude 3.5 Sonnet
• Claude 3.5 Haiku

• PWD Environment Support: The CLI now recognizes the PWD environment variable as an additional working directory, expanding file operation permissions beyond just the current working directory
• Multiple Working Directories: Files can now be accessed from both the current working directory and the PWD location

• New sandbox parameter: Execute bash commands in a restricted environment without requiring user approval
• When sandbox=true: Commands run immediately without approval dialogs but with restricted filesystem write and network access
• Automatically retries with sandbox=false if permission or network errors occur
• Optimized for read-only operations like ls, cat, git status, pwd, etc.

Example usage scenarios:

# These commands can run with sandbox=true (no approval needed)
ls -la
git status
cat file.txt
pwd
echo $HOME

# These require sandbox=false (user approval required)
npm install
git commit
touch newfile.txt
curl https://api.example.com

• Enhanced streaming feedback: When Claude is preparing to use a tool, the interface now shows animated status messages that cycle through states like "Streaming input", "Still streaming input", "Megastreaming", etc.
• Improved tool preview: Shows the tool name and partial parameters while the tool use is being streamed

• Centralized metrics: New unified system for tracking CLI usage metrics including:
• Session counts
• Lines of code modified (additions/removals)
• Pull requests created
• Git commits created
• Cost tracking
• Token usage
• Code editing tool decisions (accept/reject)

• Smart command titles: Custom slash commands now extract titles from markdown headers in the command content, limiting to 100 characters for better display

• Symlink resolution: The cd command now resolves symlinks using realpath, ensuring you navigate to the actual directory location
• Enhanced WSL support: Improved detection of Windows Subsystem for Linux (WSL) environments with better path handling for .claude/ide directories
• Notebook cell handling: Better support for reading and editing individual cells in Jupyter notebooks

• API Provider display: New configuration info panel showing:
• Current API provider (AWS Bedrock, Google Vertex AI)
• Custom base URLs if configured
• AWS/GCP regions
• Proxy settings
• Authentication status

• Stricter input parsing: Tool inputs now use proper schema validation with partial parsing support for streaming scenarios
• Better error handling: Improved error messages when tool rendering fails during streaming

• Concurrent version cleanup: Old CLI versions are now cleaned up more efficiently with proper locking
• Protected versions: The system protects currently running versions and symbolic links (latest, known-good) from deletion
• Configurable retention: Keeps only the 2 most recent versions by default

• Modular telemetry: Metrics system is now initialized separately and can be disabled
• Better proxy support: Consolidated proxy configuration using HTTPS_PROXY or HTTP_PROXY environment variables
• Enhanced MCP approval: Improved migration of MCP (Model Context Protocol) server approval settings
• React context for feature flags: New context system for managing feature availability

• Fixed issues with file permission checks in additional working directories
• Improved handling of malformed tool inputs during streaming
• Better error recovery during version installation and cleanup
• Fixed duplicate imports and unused variables

None - This release maintains backward compatibility with existing workflows and configurations.