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 !
