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Apache Ozone 2.0.0 Release

· One min read
The Apache Ozone Community
The Apache Ozone Community
Apache Ozone Project

Apache Ozone 2.0.0 was released on April 30th, 2025. This release includes 1700 new features, improvements, and bug fixes on top of Ozone 1.4.

Notable features in this release include:

  • Supporting HSync and lease recovery (HDDS-7593).
  • SCM Decommissioning Support (HDDS-7852).
  • Symmetric Keys for Delegation Tokens (HDDS-8829).
  • Atomic Key Overwrite and Key Replacement (HDDS-10656).

Other noteworthy changes include:

  • ARM64 support (HDDS-6263).
  • Java 11/17/21 Support and Testing (HDDS-8246).
  • AWS SDK v2 client support (HDDS-12488).

Observability improvements are:

  • Ozone performance and operational dashboards (HDDS-9307).
  • Recon UI Improvements (HDDS-11153).
  • Support for interactive mode for Ozone CLI (HDDS-11825).

Developer-focused changes include:

  • JUnit 4 to 5 upgrade (HDDS-6729).
  • Dropped Hadoop 2.7 ~ 2.9 support (HDDS-8113).
  • Publish SBOM artifacts (HDDS-10986).
  • Hadoop dependency updated to 3.4.1 (HDDS-11617).

Incompatible changes are:

  • Move S3 Gateway web admin to separate port (HDDS-7307).
  • Deprecate file per chunk layout from Datanode code (HDDS-11753).
  • Drop support for non-Ratis OM and SCM (HDDS-11754).
  • Remove LegacyReplicationManager (HDDS-11759).

Detailed release notes are available at https://ozone.apache.org/release/2.0.0/. Downloads can be found at https://ozone.apache.org/downloads/. Documentation for this release is available at https://ozone.apache.org/docs/2.0.0/.