The release adds named handlers for row-at-a-time scalar UDFs, removes the five-UDF-call-per-query limit.
Lakenaut 24 Sept 2026
Unity Catalog Python UDFs are GA for scalar and batch use — and 20 more
 

In the last seven days: 11 shipped, four in preview and six new concepts on Lakenaut.

New features
Previews and beta
New and rewritten concepts
  • The ai_* family: task-specific functions for parsing, extraction, classification and text work, the general-purpose ai_query, and which of them are actually generally available.
  • ABAC policies apply row filters and column masks from a metastore, catalog or schema, selecting objects by governed tag. A rule written once with CREATE POLICY covers every tagged…
  • Agent skills teach a coding agent like Claude Code the current way to work on Databricks; the identity you give it, not its instructions, decides what it can break.
  • mlflow.genai.evaluate() scores agent traces with built-in and custom judges, and the same scorers can run continuously in production.
  • Long-term memory for an agent, kept in a workspace store Databricks runs on Lakebase and partitioned by actor — where the store, not the actor, is the security boundary.
  • Registering a Python or SQL function in Unity Catalog turns it into a governed agent tool, where the docstring becomes the schema the model reads and EXECUTE decides who may call…
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