# Claude Code v0.2.18

> Claude Code v0.2.18, released 26 Feb 2025 (2025-02-26). 10 entries read out of the shipped bundle. Unofficial, and not affiliated with Anthropic.

Web version: https://changelogs.core-directive.com/v/0.2.18

## Changes

### Config Management Enhancements

- **New config array operations**: Added `config add` and `config rm` subcommands to manage configuration arrays
- `claude config add <key> <value>` - Add an item to a config array
- `claude config rm <key> <value>` - Remove an item from a config array
- **Alias support**: Added `ls` as an alias for `config list`

### Fish Shell Support

- Added full support for Fish shell in the persistent shell environment
- Fish shell configuration files (`.config/fish/config.fish`) are now recognized

### Image Support in Command Output

- Command output can now display images when detected (data URLs with base64 encoding)
- When image data is detected in command output, it's sent to Claude and marked as "[Image data detected and sent to Claude]"

### Project Configuration

- Added `ignorePatterns` configuration option to specify patterns for files/directories to ignore
- Improved ignore pattern handling with custom pattern support via `v_()` function

### Release Notes Display

- Simplified release notes display - now shows "What's new:" instead of version-specific headers
- Improved release notes caching and display logic using `useMemo` for better performance

### Error Handling

- Enhanced error reporting with additional context in the `Ib` function
- Better error tracking with optional extra parameters

### Shell Environment

- Fixed Fish shell syntax checking with proper flags (`--no-execute -c`)
- Improved shell command validation for Fish shell compatibility

## Technical Changes

- Updated version to 0.2.18
- Added 42 new functions/variables
- Removed 12 deprecated functions/variables
- Modified 12 existing functions with improvements
- Structural similarity with v0.2.14: 99.2%

### Managing Config Arrays

`# Add a pattern to ignore list
claude config add ignorePatterns "*.tmp"

# Remove a pattern from ignore list
claude config rm ignorePatterns "*.tmp"

# List all config values (using new alias)
claude config ls`

### Fish Shell Integration

Fish shell users can now use Claude Code seamlessly with proper shell integration and syntax validation.