Lár v1.3.2 Release Notes

Lár v1.3.2 Release Notes

"The Developer Experience Update"

This release addresses the documentation gap from v1.3.0 by adding comprehensive usage examples and documentation for AuditLogger and TokenTracker.

What's New

Documentation Improvements

1. New Example: Custom Logger/Tracker

File: examples/patterns/16_custom_logger_tracker.py

Demonstrates:

• Default automatic creation (recommended for most use cases)
• Custom dependency injection for advanced workflows
• Shared tracker for cost aggregation across multiple executors
• Direct access to logger history and token summaries

Usage:

python examples/patterns/16_custom_logger_tracker.py

2. Enhanced v1.3.0 Release Notes

Added complete "How to Use" section with:

• Option 1: Automatic (default behavior)
• Option 2: Custom injection (advanced)
• Code examples for both patterns
• Use cases for custom injection

3. Updated README.md

• Added observability features section to GraphExecutor documentation
• Included code examples for default and advanced usage
• Added reference to new example in metacognition features list

4. Updated Documentation

File: docs/core-concepts/3-audit-log.md

New section: "Modular Observability (v1.3.0)"

• Detailed AuditLogger usage patterns
• Detailed TokenTracker usage patterns
• Real-world examples for cost aggregation
• GxP-compliant audit trail examples

Impact

Before v1.3.2:

• Users had to read source code to understand AuditLogger and TokenTracker
• No documented examples of custom injection
• Confusion about when to use custom instances vs defaults

After v1.3.2:

• ✅ Clear usage examples in release notes, README, and docs
• ✅ Dedicated example file with 4 usage patterns
• ✅ Guidance on when to use each approach
• ✅ Significantly improved developer experience

No Breaking Changes

This is purely a documentation release. No API changes, no code changes to the core framework.

All existing code continues to work exactly as before.

Upgrade

pip install --upgrade lar-engine

Or with Poetry:

poetry add lar-engine@^1.3.2

Documentation Coverage

Developer Experience: Significantly improved for v1.3.0 observability features.