# Features in Preview

The table below outlines the available features currently in preview for this release and when they were introduced.

| Feature                                                                                                                                                                                                                                                                                              | Availability    | Introduced               |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------- | ------------------------ |
| Allow [masked columns as input for row-level policies](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/reference-guides/data-policies#masked-columns-as-input-for-row-level-policies) in the Snowflake and Databricks Unity Catalog integrations | Public preview  | September 2023 (v2023.3) |
| [Amazon S3 integration](https://documentation.immuta.com/2024.3/integrations/amazon-s3)                                                                                                                                                                                                              | Private preview | January 2024 (v2024.1)   |
| [Audit export to S3 or ADLS Gen2](https://documentation.immuta.com/2024.3/detect-your-activity/audit/reference-guides/universal-audit-model-uam)                                                                                                                                                     | Public preview  | March 2024 (2024.2)      |
| [Databricks Unity Catalog tag ingestion](https://documentation.immuta.com/2024.3/integrations/databricks-unity-catalog/unity-catalog-overview#tag-ingestion)                                                                                                                                         | Design partner  | 2024.3                   |
| [Bulk create Snowflake data sources](https://documentation.immuta.com/2024.3/integrations/snowflake/reference-guides/snowflake-overview#snowflake-bulk-data-source-creation)                                                                                                                         | Private preview | September 2022 (v2022.3) |
| [Enhanced subscription tag variables](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/section-contents/how-to-guides/advanced-dsl-policies)                                                                                                                    | Public preview  | July 2022 (v2022.2)      |
| [Google BigQuery](https://documentation.immuta.com/2024.3/integrations/google-bigquery)                                                                                                                                                                                                              | Private preview | October 2022 (v2022.3)   |
| [Masking fields within struct columns](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/reference-guides/data-policies#complex-data-types-masking-fields-within-struct-columns-public-preview)                                                    | Public preview  | 2021                     |
| [Microsoft Purview external catalog](https://documentation.immuta.com/2024.3/integrations/catalogs/reference-guides/pre-configuration#microsoft-purview-catalog)                                                                                                                                     | Private preview | September 2024 (v2024.3) |
| [Monitors and observations](https://documentation.immuta.com/2024.3/detect-your-activity/monitors/detect-monitors-reference-guide)                                                                                                                                                                   | Public preview  | February 2024            |
| [Impersonation](https://documentation.immuta.com/2024.3/people/immuta-users/how-to-guides/user-impersonation)                                                                                                                                                                                        | Public preview  | November 2021 (v2021.4)  |
| [Native sensitive data discovery (SDD) for Redshift](https://documentation.immuta.com/2024.3/discover-your-data/data-discovery)                                                                                                                                                                      | Private preview | April 2024 (v2024.2)     |
| [Native sensitive data discovery (SDD) for Starburst (Trino)](https://documentation.immuta.com/2024.3/discover-your-data/data-discovery)                                                                                                                                                             | Public preview  | April 2024 (v2024.2)     |
| [Orchestrated masking policies](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/reference-guides/orchestrated-masking-policies)                                                                                                                  | Private preview | October 2022 (v2022.4)   |
| [Policy adjustments](https://documentation.immuta.com/2024.3/secure-your-data/projects-and-purpose-based-access-control/projects-and-purpose-controls/reference-guides/policy-adjustments)                                                                                                           | Public preview  | 2021                     |
| [Snowflake lineage tag propagation](https://documentation.immuta.com/2024.3/integrations/snowflake/reference-guides/overview)                                                                                                                                                                        | Private preview | December 2022 (v2022.5)  |
| [Write access policies for Snowflake and Databricks Unity Catalog](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/section-contents/reference-guides/subscription-access-types)                                                                                | Private preview | September 2023 (v2024.1) |
| [Write access policies for Starburst (Trino)](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/section-contents/reference-guides/subscription-access-types)                                                                                                     | Private preview | February 2024 (v2024.2)  |
| [Write access policies for Amazon S3](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/section-contents/reference-guides/subscription-access-types)                                                                                                             | Private preview | April 2024 (v2024.2)     |