MLflow 3.15.2 is a patch release that includes several major features and improvements.

Features:

• [Evaluation] Support immutable evaluation dataset versions (#24845, @danielseong1)
• [Evaluation] Add scorer_ensemble primitive for combining scorer results (#24749, @alkispoly-db)

Bug fixes:

• [Evaluation] Preserve base judge invocation flow in MemAlign aligned judges (#24883, @veronicalyu320)
• [Tracking] Pre-import databricks.sdk in Databricks to avoid telemetry deadlock (#24841, @aaronteo-db)
• [Build / Tracking] Align runs.status constraint metadata (#24890, @joshuawong-db)