Hi Hui, Thanks a lot for rolling out the release!
Tsz-Wo On Sun, Jul 19, 2026 at 7:59 PM Sammi Chen <[email protected]> wrote: > Awesome! > > Thank Hui Fei for all the effort of making the 2.2.0 release happen! > > Thanks to everyone who contributed to this release! > > On Fri, 17 Jul 2026 at 11:28, Hui Fei <[email protected]> wrote: > > > Hi community, > > > > We are excited to announce the release of Apache Ozone 2.2.0! > > > > Release notes: > > https://ozone.apache.org/release-notes/2.2.0/ > > > > Documentation: > > https://ozone.apache.org/docs/ > > > > Javadoc: > > https://javadoc.io/doc/org.apache.ozone > > > > Github release page: > > https://github.com/apache/ozone/releases/tag/ozone-2.2.0 > > Notable Changes > > > > HDDS-13003 <https://issues.apache.org/jira/browse/HDDS-13003> | *Major* > | Snapshot > > Defragmentation to reduce storage footprint > > > > Snapshot defragmentation reduces snapshot storage footprint and improves > > snapshot local-data, locking, and diff handling. > > ------------------------------ > > > > HDDS-12716 <https://issues.apache.org/jira/browse/HDDS-12716> | *Major* > | Ozone > > S3 gateway Phase 4 > > > > S3 Gateway Phase 4 delivers broad S3 API compatibility, request handling, > > metrics, and correctness improvements. > > ------------------------------ > > > > HDDS-13177 <https://issues.apache.org/jira/browse/HDDS-13177> | *Major* > | Storage > > Capacity Distribution > > > > Storage capacity distribution improvements expand reporting and > > operational visibility in Recon and SCM. > > ------------------------------ > > > > HDDS-10519 <https://issues.apache.org/jira/browse/HDDS-10519> | *Major* > | Refactor > > OM info/args objects > > > > Ozone Manager metadata and argument objects were refactored toward > > immutability, builders, and safer request-state handling. > > ------------------------------ > > > > HDDS-5404 <https://issues.apache.org/jira/browse/HDDS-5404> | *Major* | > upgrade > > protobuf to proto3 > > > > Ozone moves toward protobuf 3 and removes older protobuf compilation > paths. > > ------------------------------ > > > > HDDS-5713 <https://issues.apache.org/jira/browse/HDDS-5713> | *Major* | > Add > > a disk balancer for datanode > > > > Disk Balancer adds and refines DataNode disk balancing, validation, > > metrics, and command output. > > ------------------------------ > > > > HDDS-14424 <https://issues.apache.org/jira/browse/HDDS-14424> | *Major* > | OM > > HA: Support Follower Read (Phase 1) > > > > OM HA follower reads add foundations for scaling read paths through > > follower-side reads. > > ------------------------------ > > > > HDDS-10338 <https://issues.apache.org/jira/browse/HDDS-10338> | *Major* > | Implement > > a Client Datanode API to stream a block > > > > Client-to-DataNode stream block APIs lay groundwork for more efficient > > streaming reads. > > ------------------------------ > > > > HDDS-14937 <https://issues.apache.org/jira/browse/HDDS-14937> | *Major* > | Ozone > > native implementation of Iceberg RewriteTablePath > > > > Iceberg RewriteTablePath support adds Ozone-native path migration actions > > and CLI integration. > > ------------------------------ > > > > HDDS-13679 <https://issues.apache.org/jira/browse/HDDS-13679> | *Major* > | Distributed > > tracing improvement > > > > Distributed tracing improvements introduce OpenTelemetry-oriented tracing > > configuration and runtime support. > > ------------------------------ > > > > HDDS-14886 <https://issues.apache.org/jira/browse/HDDS-14886> | *Major* > | Umbrella: > > Improve SCMHAInvocationHandler > > > > SCM HA invocation handling is simplified and replaced with direct Ratis > > invocation paths. > > ------------------------------ > > > > HDDS-13117 <https://issues.apache.org/jira/browse/HDDS-13117> | *Major* > | Add > > support for S3 conditional requests > > > > S3 conditional request support adds PutObject conditional-write > semantics. > > ------------------------------ > > > > HDDS-12090 <https://issues.apache.org/jira/browse/HDDS-12090> | *Major* > | Fix > > Snapshot Bootstrapping race condition to prevent snapshot corruption > > > > Snapshot bootstrapping fixes strengthen lock ordering and race protection > > to prevent corruption. > > ------------------------------ > > > > HDDS-11825 <https://issues.apache.org/jira/browse/HDDS-11825> | *Major* > | Support > > interactive mode for ozone CLI > > > > The Ozone interactive CLI submodule adds an interactive shell experience > > and related command improvements. > > > > > > > > > > > > >
