Upgrading etcd clusters and applications This section contains documents specific to upgrading etcd clusters and applications. Moving from etcd API v2 to API v3 Migrate applications from using API v2 to API v3 Upgrading an etcd v3.x cluster Upgrade etcd from 3.0 to 3.1 Upgrade etcd from 3.1 to 3.2 Upgrade etcd from 3.2 to 3.3 Upgrade etcd from 3.3 to 3.4 Upgrading from etcd v2.3 Upgrade a v2.3 cluster to v3.0