April 2026 monthly work summary focusing on key accomplishments in harupy/mlflow. Implemented workspace-aware indexing for model version tags and registered model tags to optimize query performance and data isolation in single-tenant installations. This involved introducing database indexing and ensuring all queries are filtered by workspace, significantly reducing latency and improving data retrieval. Added end-to-end tests to verify that workspace predicates are applied in main search queries. Addressed performance degradation for single-tenant installations (#22405) with targeted indexing and predicate safeguards. Overall, these changes improve performance, scalability, and user experience for multi-tenant deployments while maintaining strong data separation and test coverage.