Version v3.3 of the documentation is no longer actively maintained. The page that you are viewing is the last archived version. For the latest stable documentation, see v3.5.
This document describes the versions supported by the etcd project.
Service versioning and supported versions
etcd versions are expressed as x.y.z, where x is the major version, y is the minor version, and z is the patch version, following Semantic Versioning terminology. New minor versions may add additional features to the API.
The etcd project maintains release branches for the current version and previous release. For example, when v3.5 is the current version, v3.4 is supported. When v3.6 is released, v3.4 goes out of support.
Applicable fixes, including security fixes, may be backported to those two release branches, depending on severity and feasibility. Patch releases are cut from those branches when required.
The project Maintainers own this decision.
You can check the running etcd cluster version with
etcdctl --endpoints=127.0.0.1:2379 endpoint status
v3 API responses should not change after the 3.0.0 release but new features will be added over time.
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