ZooKeeper Apache Application Release Version Major Minor Patch End-of-life EOL Support End-of-support EOS Maintenance End-of-maintenance EOM Security Long-term support LTS Vulnerabilities Common vulnerabilities & exposures CVE Security product-release-end-of-life-overview.xml free-trial.xml 📅 Last update on 2025-08-08 What is ZooKeeper?   The entire lifecycle of ZooKeeper The following figure shows you the visualised product life cycle of ZooKeeper. You can see all releases with the latest patch version, the long-term support characteristics (orange flag in the green circle, the periods for version provision, maintenance and support. Figure: Release, patch and end-of-life cycle of product ZooKeeper (Apache)   The Apache ZooKeeper community supports two release branches at a time: stable and current. The stable version of ZooKeeper is 3.7.x and the current version is 3.8.x. 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. During the half year grace period only security and critical fixes are expected to be released for the version. After EoL is announced no further patches are provided by the community. All ZooKeeper releases will remain accessible from the official Apache Archives. Product ZooKeeper Vendor Apache Latest version 3.9.3 Number of releases 7 Number of versions 151 Number of unstable versions 102 Number of versions affected by CVE 67 Licence Apache License 2.0 Licence details Product site Release info Version command Wikipedia https://en.wikipedia.org/wiki/Apache_ZooKeeper