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  • Automation Cloud and Test Cloud
    • 2026
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Maestro release notes

Last updated Apr 29, 2026

April 2026

April 30, 2026

Query Expansion Multiple for Data Fabric

Data Fabric queries now support the qem: (Query Expansion Multiple) prefix in addition to the existing qes: (Query Expansion Single) prefix. Queries using qem: return all matching records as an array of up to 1,000 items, enabling workflows to fan out over multiple Data Fabric records in a single step. Queries using qes: continue to return a single record.

Additionally, qes: now returns an explicit error when the query matches more than one record, and returns an empty result when no match is found, instead of failing the workflow.

For more information, see Data Fabric operations in Maestro.

Instance throttling indicator

Maestro now shows a warning indicator when a workflow instance is being throttled due to high activity volume:

  • Instances table: A ⚠ warning icon appears next to the instance status. Hovering shows the tooltip: Instance is throttled due to high activity volume.
  • Instance details page: A warning banner appears at the top of the page while the instance is running: This instance is being throttled due to high activity volume. Execution continues at reduced speed.

The indicator updates in near real-time and disappears automatically once throttling lifts. Throttling affects execution speed only — your workflow continues to run and produces the same results.

For more information, see Instance throttling.

Human-in-the-loop Quick Form schema registration

Quick Form HITL tasks now register their schema with Orchestrator before task creation using ITaskSchemasClient.CreateSchemaAsync. Schema registration is idempotent — if the schema already exists (HTTP 409), it is treated as success and task creation proceeds normally. TaskCreateRequest now uses the native TaskSchemaKey (GUID) and Type = QuickFormTask properties from the v26 client, replacing the previous AdditionalProperties stub. A new error code HitlTaskSchemaRegistrationFailed (170042) is returned if schema registration fails.

  • April 30, 2026
  • Query Expansion Multiple for Data Fabric
  • Instance throttling indicator
  • Human-in-the-loop Quick Form schema registration

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