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Note
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 October 8, 2026, all new workspaces are 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 October 8, 2026, new workspaces in all accounts are provisioned without access to:
- DBFS root and DBFS mounts.
- Hive metastore.
- No-isolation shared clusters.
- Databricks Runtime versions prior to 13.3 LTS.
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.
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 are provisioned without support for no-isolation shared clusters. If you plan to migrate any existing workflows to new workspaces created after October 8, 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 October 8, 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 an Azure Databricks workspace to Unity Catalog for detailed guidance, including:
- Upgrading Hive tables and views to Unity Catalog
- Migrating files stored in DBFS to volumes and external locations
- Migrating notebooks and scripts
- Updating jobs to work with Unity Catalog
- Migrating to supported Databricks Runtime versions
- Migrate compute to Unity Catalog access modes
- Disabling access to legacy features in your workspaces