2.0.0 release highlights

New and notable changes in version 2.0.0 of Elastic Cloud on Kubernetes. See Elastic Cloud on Kubernetes version 2.0.0 for the full list of changes.

ECK 2.0.0 removes support for legacy versions of Kubernetes and no longer ships with a v1beta1 version of its custom resource definitions. ECK can therefore no longer be installed in versions of Kubernetes <1.16. Please note however that the lowest supported version according to the ECK support policy is 1.19.

Starting with ECK 2.0 the operator can make Kubernetes Node labels available as Pod annotations. This can be used to make information, such as logical failure domains, available in a running Pod. Combined with Elasticsearch shard allocation awareness and Kubernetes topology spread constraints, this makes it much easier than before to create availability zone-aware Elasticsearch clusters.

When orchestrating Elasticsearch version 7.15.2 or later ECK will use the new node lifecycle APIs to orchestrate rolling upgrades and scale downs to make Elasticsearch aware of impending temporary or permanent shutdown of nodes.