Helm Chart

Repo: https://downloads.apache.org/incubator/polaris/helm-chart

1.0.0 release

Apache Polaris 1.0.0-incubating was released on July 9th, 2025.

• Highlights
  • First release ready for real-world workloads after the public beta 0.9.0
  • Binary distribution – first release with single downloadable .tgz or .zip artifact.
  • Helm Chart – debut of an official Helm chart for seamless Kubernetes deployment
• New features & enhancements
  • Policy Store — persistence with schema evolution, built‑in TMS policies (Data compaction, Snapshot expiry, etc) and REST CRUD endpoints
  • Postgres JDBC persistence — native JDBC backend with robust support for concurrent changes.
  • Rollback Compaction on Conflicts - makes Polaris smarter, to revert the compaction commits in case of crunch to let the writers who are actually adding or removing the data to the table succeed. In a sense treating compaction as always a lower priority process.
  • Enhanced runtime — new runtime powered by Quarkus delivers out‑of‑the‑box Kubernetes readiness, quick startup, OIDC integration, and many other benefits. Polaris server and admin tool are now using Quarkus as a runtime framework.
  • HTTP caching via ETag — the loadTable endpoint supports ETag, reducing bandwidth and improving perceived latency
  • Support for external identity providers (IdP) — Polaris can now be its own IdP, delegate to an external IdP, or both
  • Snapshot filtering – clients can choose to load only referenced snapshots
  • Catalog Federation (experimental) – federate requests to an external Iceberg REST or Hadoop Catalog
  • Generic Tables (experimental) — serve multiple table formats besides Iceberg tables; initial Spark 3.5 plugin supports Delta Lake
  • Event Listener framework (experimental) — subscribe to catalog events (AfterTableCommitedEvent, BeforeViewCommitedEvent, etc)
• Notable bug fixes
  • CLI and Python Client improvements – Support for new features, CLI repair, changes to the update subcommand, and various fixes
  • Safe configurations – Catalog-level Polaris configurations follow a strict naming convention to avoid name clashes with user-provided configuration entries. Legacy Polaris configuration names are still supported in 1.0 to allow existing deployments to migrate without rush.
  • TableOperations optimizations – Changes to BasePolarisTableOperations result in less traffic to object storage during commits
  • Bounded entity cache – The entity cache is now more memory-aware and less likely to lead to OOMs
  • Bootstrapping fixes – Users can more easily bootstrap a new realm. Root credentials can be provided by the user or generated by Polaris (and returned to the user).
• Breaking changes
  • Server Configuration – The format used to configure the Polaris service in 0.9 has changed with the migration to Quarkus and changes to configurations
  • Bootstrap Flow – The bootstrap flow used in 0.9 has changed with the migration to Quarkus and the new admin tool

0.9.0 release

Apache Polaris 0.9.0 was released on March 11, 2025 as the first Polaris release. Only the source distribution is available for this release.