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databricks Platform · Updated Sep 24, 2026

Lakeflow Designer September Release

The Lakeflow Designer September release adds Guardrails, multi input joins, new parameter controls, and more ways to bring data into a visual data prep.

GA Open docs ↗release note ↗
What it does

The Lakeflow Designer September release adds Guardrails, multi input joins, new parameter controls, and more ways to bring data into a visual data prep. The following updates are now available: Create a visual data prep from multiple files: On the Visual data prep page, select Import file As source to upload multiple files into one visual data prep, with a Source operator for each file. Guardrails operator: Check data against rules such as not null, unique, and accepted values.

Why it matters

When the side pane is open, the in canvas toolbar is minimized.

Key capabilities
Source: Table, File path, and
Source: Table, File path, and File format.
Output: Catalog, Schema, Table, View
Output: Catalog, Schema, Table, View, Volume, File name, and Write mode.
Limit: Limit
Limit: Limit.
Combine: Set operation, Merge strategy
Combine: Set operation, Merge strategy, Union by name, and Allow missing columns.
Architecture
Databricks Platform → Platform
In short

The Lakeflow Designer September release adds Guardrails, multi input joins, new parameter controls, and more ways to bring data into a visual data prep. The following updates are now available: Create a visual data prep from multiple files: On the Visual…

Read the full documentation ↗
Key takeaway
The Lakeflow Designer September release adds Guardrails, multi input joins, new parameter controls, and more ways to bring data into a visual data prep.
2026-09-24-lakeflow-designer-september-release Generated by the Databricks Updates Agent · browse all updates