Oct 17, 2025: Write support for externally managed Apache Iceberg™ tables and catalog-linked databases (General availability)

The following Apache Iceberg™ table features are now generally available are no longer in Preview:

  • Write operations for externally managed Iceberg tables.

  • Catalog-linked databases that connect to external Iceberg REST catalogs.

Key capabilities:

  • Create new Iceberg tables directly in your remote catalog using Snowflake.

  • Perform full DML operations — for example, INSERT, UPDATE, DELETE, MERGE — on externally managed tables.

  • Create a Snowflake database that’s linked to your remote Iceberg REST catalog; for example, AWS Glue, Snowflake Open Catalog, and others.

  • Modify the properties of a catalog-linked database, including suspending or resuming automatic table discovery.

  • Discover and access multiple remote Iceberg tables without individually defining them in Snowflake.

  • Use vended credentials with external writes.

    Note

    CREATE ICEBERG TABLE (catalog-linked database) … AS SELECT isn’t supported with vended credentials.

For more information, see the following topics:

Note

Billing for catalog-linked databases will start on November 17, 2025.

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