Hi,
The Apache Polaris team is pleased to announce Apache Polaris 1.6.0!
This release includes several fixes and improvements, especially:
- Event listeners are now executed on a dedicated executor. **This executor
does not propagate the original request's CDI context**; listeners that
were improperly relying on that should instead manage their own CDI request
scope from now on. Furthermore, two new configuration options were
introduced to configure the executor:
- `polaris.event-listener.executor.pool-size` configures the thread pool
size.
- `polaris.event-listener.executor.queue-size` configures the queue size
for pending events when all threads are busy.
- The `MaintenanceService.performMaintenance()` signature now requires an
explicit `OptionalLong overrideRunId` argument to supersede the latest
unfinished maintenance run.
- The REST layer now enforces stricter validation for entity names
(including namespaces, tables, views, and generic tables). Requests
containing invalid names will be rejected with an HTTP 400 error. Existing
clients should verify and rename entities before upgrading if their names
fall into the following forbidden categories:
- Empty strings
- Names consisting solely of `.` or `..`
- Names containing control (invisible) characters
- Names with leading or trailing whitespace
- Names containing any of these characters: <code>/\:*?"<>|#+`</code>
- Added `SESSION_NAME_FIELDS_IN_SUBSCOPED_CREDENTIAL` feature flag for AWS
credential vending. Operators can now configure an ordered list of fields
(`realm`, `catalog`, `namespace`, `table`, `principal`) to compose
structured STS role session names (e.g.
`p-acme-hr_catalog-employee-etl_writer`). Session names are sanitized and
proportionally truncated to the AWS 64-character limit. When unset,
existing `INCLUDE_PRINCIPAL_NAME_IN_SUBSCOPED_CREDENTIAL` behaviour is
preserved.
- Added `hostUsers` support in Helm chart.
- Added documentation for BigQuery Metastore Catalog federation. Build with
`-PNonRESTCatalogs=BIGQUERY` to include the BigQueryMetastoreCatalog
federation extension. See
`site/content/in-dev/unreleased/federation/bigquery-metastore-federation.md`.
- Support for view registration has been added.
- Python client: added support for Python 3.14
- Added support for `register table` overwrite semantics in the Iceberg
REST catalog flow (`overwrite=true`) for internal Polaris catalogs. With
overwrite enabled, existing table pointers can be updated to a new metadata
location while preserving default behavior for `overwrite=false`.
- Added `REGISTER_TABLE_OVERWRITE` authorization operation mapped to
`TABLE_FULL_METADATA` for deterministic overwrite authorization.
- Added Polaris Spark 4.0 client.
This release can be downloaded here:
https://www.apache.org/dyn/closer.cgi/polaris/apache-polaris-1.6.0.
You can find more details about this release here:
https://polaris.apache.org/downloads/1.6.0/
Artifacts are available on Maven Central.
Apache Polaris is an open-source, fully-featured catalog for Apache
Iceberg™. It implements Iceberg's REST API, enabling seamless multi-engine
interoperability across a wide range of platforms, including Apache Doris™,
Apache Flink®, Apache Spark™, Dremio®, StarRocks, and Trino.
Enjoy !
