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Migrate your account to UC-only workspaces

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This page only applies to accounts created before December 18, 2025 that use legacy features. Accounts created after December 18, 2025 do not have access to legacy features.

Starting on September 30, 2026, all new workspaces will be provisioned with Unity Catalog and without access to certain legacy features. Existing workspaces and their workflows are not impacted. This page provides guidance for accounts with legacy workspaces on how to prepare for this change.

What's changing​

Starting September 30, 2026, new workspaces in all accounts will be provisioned without access to:

What you need to do to prepare​

To prepare for this change, admins must update their account-level workspace provisioning process to remove dependency on legacy features. Additionally, Databricks recommends upgrading existing workspaces to Unity Catalog to take advantage of the new features and capabilities.

  • Remove dependency on DBFS and the Hive metastore in workspace provisioning

    If your organization uses automation for workspace provisioning, make sure the automation does not rely on legacy features. Adjust any CI/CD scripts and internal operational procedures for workspace creation processes that use DBFS root, DBFS mounts, or the Hive metastore.

    If you want to test the new default behavior before September 30, 2026, you can do so by enabling the Disable legacy features setting in your account console. See Disable access to legacy features in new workspaces.

  • Set metastores to auto-assign

    Set a metastore to auto-assign for every region in which you deploy workspaces. Failure to do so requires a metastore to be assigned manually when a workspace is provisioned. See Enable a metastore to be automatically assigned to new workspaces.

  • Migrate workflows to non-legacy access modes

    New workspaces will be provisioned without support for no-isolation shared clusters. If you plan to migrate any existing workflows to new workspaces created after September 30, 2026, make sure they do not rely on this legacy access mode. See Enable admin protection for no isolation shared clusters in your account.

Migrate to Unity Catalog in existing workspaces​

Though not required by the September 30, 2026 deadline, Databricks recommends migrating existing workspaces to Unity Catalog to take advantage of unified governance, enterprise-grade security, and advanced platform features.

See Upgrade a Databricks workspaces to Unity Catalog for detailed guidance, including: