v2.1.172

Version 2.1.172 introduces significant enhancements to the agent architecture, allowing sub-agents to spawn their own sub-agents up to five levels deep. Technical improvements include the integration of AWS region configuration from local files, updates to the OTEL metric with a new model attribute, and various bug fixes addressing session management, model selection, and memory recall issues. These changes enhance the robustness and usability of the platform, particularly for practitioners leveraging complex agent interactions and memory management in AI applications.