February 2026 monthly summary for braintrust-sdk: Delivered robust trace lifecycle improvements for the OpenAIAgentsTraceProcessor, focusing on ensuring traces are completed and UI reflects accurate state. Implemented reliable asynchronous flush during shutdown and forced flush, and flushed root spans onTraceEnd to ensure metrics are emitted before process exit. Added targeted tests to validate flush and completion behavior across typical and edge scenarios. Result: fewer traces stuck as 'in progress', more reliable metrics, and improved developer and user experience in observability tooling.

January 2026 monthly summary focusing on business value and technical achievements across braintrust-proxy and braintrust-sdk. Key outcomes include deployment of two new Fireworks models with updated pricing, enhanced LangChain prompt caching metrics for improved cost visibility, and UI/cost accuracy improvements that enable precise budgeting and planning.