January 2026 (Month: 2026-01) monthly summary focusing on strands-agents/sdk-python. Key feature delivered: Invocation state support for model providers, enabling improved context retention and state management across model executions and streaming, leading to better continuity in conversations and tasks. No major bugs fixed this month. Overall impact: strengthened stateful model interaction in the Python SDK, improving reliability and user experience in long-running conversations and streaming workloads. Accomplishments: contributed to feature delivery with collaborators, demonstrated strong API design for passing invocation_state, and prepared the SDK for future stateful enhancements. Technologies/skills demonstrated: Python SDK development, API design for model provider invocation_state, streaming context management, collaboration and code review in cross-functional teams, co-authorship.