See ZooKeeper 3.9.0 Release Notes for details. ZooKeeper 3.9.x clients are compatible with 3.5.x, 3.6.x, 3.7.x and 3.8.x servers as long as you are not using new APIs not present these versions. The upgrade from 3.7.x and 3.8.x can be executed as usual, no particular additional upgrade procedure is needed. ZooKeeper clients from 3.5.x onwards are fully compatible with 3.9.x servers. Updates to all the third party dependencies to get rid of every known CVE.Improve syncRequestProcessor performance.TLS - dynamic loading for client trust/key store.Communicate the Zxid that triggered a WatchEvent to fire.Admin server API for taking snapshot and stream out the data.

It is a major release and it introduces a lot of new features, most notably: This is the first release for the 3.9 branch. See ZooKeeper 3.7.2 Release Notes for details. See ZooKeeper 3.8.3 Release Notes for details. See ZooKeeper 3.9.1 Release Notes for details. See ZooKeeper 3.8.4 Release Notes for details.

See ZooKeeper 3.9.2 Release Notes for details. News 12 Mar, 2024: release 3.9.2 available For additional information, refer to the Apache documentation for verifying the integrity of Apache project releases. You can verify the integrity of a downloaded release using release-signing KEYS. Older releases are available in the archive. Apache ZooKeeper 3.9.2Īpache ZooKeeper 3.9.2 Source Release( asc, sha512) Apache ZooKeeper 3.8.4 (latest stable release)Īpache ZooKeeper 3.8.4 Source Release( asc, sha512) Apache ZooKeeper 3.7.2Īpache ZooKeeper 3.7.2 Source Release( asc, sha512) Apache ZooKeeper 3.6.4 (3.6 is EoL since 30th of December, 2022)Īpache ZooKeeper 3.6.4 Source Release( asc, sha512) All ZooKeeper releases will remain accessible from the official Apache Archives.Īpache ZooKeeper 3.9.2 is our current release, and 3.8.4 our latest stable release. After EoL is announced no further patches are provided by the community. During the half year grace period only security and critical fixes are expected to be released for the version. Once a new minor version is released, the stable version is expected to be decommissioned soon and in approximately half a year will be announced as End-of-Life. The stable version of ZooKeeper is 3.8.x and the current version is 3.9.x. The Apache ZooKeeper community supports two release branches at a time: stable and current. The Apache ZooKeeper system for distributed coordination is a high-performance service for building distributed applications.

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