Claude Code v0.2.98

# Claude Code v0.2.98 Changelog

The CLI now provides enhanced model selection capabilities with runtime configuration support:

• Statsig Integration: Model configuration now integrates with Statsig for A/B testing and feature flags
• Environment Variable Priority: The ANTHROPIC_MODEL environment variable takes precedence over other configuration methods
• Fallback Chain: Implements a robust fallback mechanism for model selection:

1. Check environment configuration
2. Check process environment variable
3. Use Statsig-provided model
4. Fall back to default model

# Set a specific model via environment variable
ANTHROPIC_MODEL=claude-3-opus-20240229 claude

# The model will persist across sessions if set in config

The settings panel now tracks configuration changes more comprehensively:

• Change Tracking: All setting modifications are now logged with telemetry events
• Model Configuration: Removed the separate model configuration UI in favor of environment-based settings
• Verbose Output: The verbose setting is now properly persisted and tracked

New support for .mcp.json configuration files in your project directory:

function saveMcpConfig(config) {
  let mcpPath = path.join(cwd(), ".mcp.json");
  writeFileSync(mcpPath, JSON.stringify(config, null, 2), { encoding: "utf8" });
}

This allows you to configure MCP servers and tools on a per-project basis.

New utilities for detecting if Claude Code is running as a child of a specific process:

function isChildOfProcess(pid) {
  if (!isProcessAlive(pid)) return false;
  // Walks up the process tree to check ancestry
  // Useful for IDE integration detection
}

Enhanced IDE detection with friendly name mapping:

function getIDEDisplayName(ideId) {
  switch (ideId) {
    case "vscode": return "VS Code";
    case "cursor": return "Cursor";
    case "windsurf": return "Windsurf";
    case "pycharm": return "PyCharm";
    case "intellij": return "IntelliJ IDEA";
    case "webstorm": return "WebStorm";
    // ... and many more IDEs
  }
}

Supports detection of 20+ different IDEs including JetBrains suite, VS Code variants, and Android Studio.

The rate limit status now includes time-based information:

// Previous version
{ status: "limited" }

// New version
{ 
  status: "limited",
  hoursTillReset: 3  // Hours until rate limit resets
}

This provides users with better visibility into when they can resume using the service.

New functionality to resolve and track conversation paths across sessions:

async function resolveConversationPaths() {
  // Automatically resolves parent-child relationships
  // between conversations for better context tracking
}

This helps maintain conversation context when switching between related discussions.

• Stream Handling: Added PassThrough stream support for better data pipeline management
• Removed Dependencies: Cleaned up unused imports and variables for a leaner codebase
• State Management: Introduced new Recoil atoms for slow/capable model configuration with proper state persistence

• Fixed model configuration not persisting across restarts
• Improved error handling in process detection utilities
• Enhanced telemetry event tracking for configuration changes