Apache ZooKeeper end of life: end of support by version
Apache · Servers & Databases
For Apache ZooKeeper by Apache, patchletter knows 6 support cycles. 4 of them have already ended and receive no more security updates. The current version of Apache ZooKeeper is 3.9.7. The cycles come from the open endoflife.date project, last reconciled on 07/11/2026.
When does support end for which Apache ZooKeeper version?
A cycle is a maintained version line. Where a date is given, support ends on that day. After it the vendor ships no more security updates for that line.
| Cycle | Latest version | End of support | Status |
|---|---|---|---|
| 3.9 | 3.9.7 | no date on record | supported |
| 3.8 | 3.8.8 | no date on record | supported |
| 3.7 | 3.7.2 | 1024 days ago | End of Life |
| 3.6 | 3.6.4 | 1409 days ago | End of Life |
| 3.5 | 3.5.10 | 1621 days ago | End of Life |
| 3.4 | 3.4.14 | 2351 days ago | End of Life |
Which Apache ZooKeeper versions no longer receive security updates?
4 of 6 cycles have ended. If you run one of those lines, the vendor ships you no more patches, not even for critical flaws.
- Apache ZooKeeper 3.73.7.2
- Apache ZooKeeper 3.63.6.4
- Apache ZooKeeper 3.53.5.10
- Apache ZooKeeper 3.43.4.14
Where does the EOL data for Apache ZooKeeper come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the Apache ZooKeeper data is as of 07/11/2026. In case of doubt the vendor's own lifecycle page applies. patchletter deliberately stores no vendor full texts.
New Apache ZooKeeper versions by email
Tick the product and patchletter reports new releases by email. The update email costs nothing, and one click stops it again. The warning 90, 30 and 7 days before support ends is part of patchletter Pro.