# Claude Code v1.0.5

> Claude Code v1.0.5, released 28 May 2025 (2025-05-28). 13 entries read out of the shipped bundle. Unofficial, and not affiliated with Anthropic.

Web version: https://changelogs.core-directive.com/v/1.0.5

## Changes

# Claude Code v1.0.5 Changelog

### 🆕 Flexible Configuration Directory

- **New function `b9()`**: Returns the Claude configuration directory, defaulting to `~/.claude` if `CLAUDE_CONFIG_DIR` environment variable is not set
- **New function `vJ()`**: Intelligently determines the configuration file path:
- First checks for `.config.json` in the Claude config directory
- Falls back to `.claude.json` in either the custom config directory or home directory
- Example: If you set `CLAUDE_CONFIG_DIR=/custom/path`, Claude will look for `/custom/path/.config.json` first

### Centralized Configuration Management

- Replaced hardcoded configuration paths throughout the codebase with dynamic path resolution
- All configuration-related functions now use the centralized `b9()` function for consistency

### 🆕 Enhanced Command Execution with `D2()` Function

- **New options parameter** with configurable defaults:

`  {
    timeout: 120000,           // 2 minutes default
    preserveOutputOnError: true,
    useCwd: true              // Use current working directory
  }`

- **Environment variable support**: Pass custom environment variables to executed commands
- **Abort signal support**: Cancel long-running commands programmatically

### Improved `eG()` Function (formerly `AZ`)

- Now accepts flexible parameter formats:
- Simple abort signal: `eG(command, abortSignal)`
- Options object: `eG(command, { abortSignal, timeout })`
- Backward compatible with existing usage

### 🆕 X11 Display Handling

- **New function `lh1()`**: Automatically disables X11 forwarding on Linux systems by setting `DISPLAY=""` in command environment
- Prevents GUI applications from attempting to open windows when running in headless environments

### 🆕 Resource Discovery

- **New `dO8` variable**: Implements automatic resource discovery from connected MCP servers
- Fetches available resources from servers with resource capabilities
- Gracefully handles errors and logs failures for individual servers

### 🆕 Dynamic Fallback Description

- **New function `g31()`**: Generates user-friendly descriptions for model fallback behavior
- Example output: "Use Opus up to 75% of Max usage limits, then Sonnet"
- Adapts description based on configured threshold

### Stream Handling

- Added `PassThrough` stream import for improved data streaming capabilities

### Refactored Changelog Formatting

- Renamed `sU2` to `aU2` for consistent naming conventions
- Maintained identical formatting behavior for version changelogs

### Updated System Prompt

- Version number updated from 1.0.4 to 1.0.5 in user assistance messages
- Added conditional MCP resource information to system prompts

### Process Import Fix

- Added missing `cwd` import from `node:process` module
- Ensures proper working directory handling across the application

### Configuration Path Resolution

- Fixed potential issues with configuration file discovery
- Improved fallback logic for legacy configuration locations