# Claude Code v1.0.38

> Claude Code v1.0.38, released 30 Jun 2025 (2025-06-30). 7 entries read out of the shipped bundle. Unofficial, and not affiliated with Anthropic.

Web version: https://changelogs.core-directive.com/v/1.0.38

## Changes

### Major Features

Hook System (New)

- **Pre/Post Tool Hooks**: Execute custom commands before and after tool operations
- `PreToolUse` - Run commands before tools execute (e.g., validation, logging)
- `PostToolUse` - Run commands after tools complete (e.g., notifications, cleanup)
- `Stop` - Execute commands when Claude stops responding
- `Notification` - Trigger commands for system notifications
- **Hook Configuration**: Configure hooks with matchers to target specific tools or patterns
- Support for regex and pipe-separated matchers
- Hooks can approve/block operations or provide feedback
- JSON output parsing for structured hook responses
- 60-second timeout with automatic cancellation

Enhanced Search Tool (Grep)

- **New Grep Tool**: Powerful search based on ripgrep with advanced features
- Multiple output modes: `content`, `files_with_matches`, `count`
- Context lines support with `-A`, `-B`, `-C` flags
- Line numbers with `-n` flag
- Case-insensitive search with `-i` flag
- File type filtering with `type` parameter
- Glob pattern support for file filtering
- **Multiline mode**: Search across line boundaries with `multiline: true`
- Head limit to control output size
- Optimized for correct permissions and file access
- Never invokes `grep` or `rg` as bash commands directly

### New Commands & Features

Memory Management

- Enhanced memory system with support for adding memories to specific files
- Memory updates preserve existing content and structure
- Automatic section detection for organized memory storage

️ Terminal Integration

- **Ghostty Terminal Support**: Added configuration for Shift+Enter keybinding
- Improved terminal setup for multiple environments
- Better handling of paste operations with image detection

️ IDE Detection

- Automatic detection of JetBrains IDEs when launched from within them
- Supports: PyCharm, IntelliJ, WebStorm, PhpStorm, RubyMine, CLion, GoLand, Rider, DataGrip, AppCode, DataSpell, Aqua, Gateway, Fleet

### Improvements

Security & Privacy

- Enhanced API key redaction in logs
- Support for AWS, GCP, and generic API key patterns
- Better handling of authorization tokens and service accounts

Performance & Reliability

- Improved proxy configuration with AWS SDK
- Better handling of aborted operations in hooks
- Enhanced error messages for hook failures
- Optimized file search with modification time sorting

UI/UX Enhancements

- Visual indication when hooks are running
- Better feedback for blocked operations
- Improved diff view for file edits
- Enhanced paste detection with visual feedback

### Technical Updates

- Updated dependencies and imports
- Improved TypeScript/JavaScript parsing
- Better handling of multiline patterns in search
- Enhanced abort signal propagation
- Optimized memory usage for large file operations

### Bug Fixes

- Fixed duplicate comment issues
- Improved error handling in hook execution
- Better cleanup of resources on exit
- Fixed terminal focus detection issues
- Resolved paste operation edge cases

### Breaking Changes

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

### Configuration

New hook configuration example:

`// Configure hooks in settings { "hooks": { "PreToolUse": [ { "matcher": "file_edit|str_replace", "hooks": [ { "type": "command", "command": "echo 'About to edit a file' | tee -a /tmp/claude.log" } ] } ] } }` New Grep tool usage examples:

`# Search for function definitions
claude> Search for "function.*Error" in all JavaScript files

# Multiline search for struct definitions
claude> Search for struct definitions with a "field" property using multiline mode

# Count occurrences with context
claude> Count how many times "TODO" appears in the codebase with 2 lines of context`