Easily upgrade your clusters to Kubernetes v1.18.2.
We are excited to announce the availability of Kubernetes version 1.18.2 for your clusters that are running in IBM Cloud Kubernetes Service. With the Kubernetes service, you can easily upgrade your clusters without the need for deep Kubernetes knowledge. When you deploy new clusters, the default Kubernetes version remains 1.16; you can also choose to immediately deploy version 1.18. Learn more about deploying clusters here.
Kubernetes version 1.18
In addition to all the great Kubernetes features provided in this release, IBM Cloud Kubernetes Service version 1.18.2 also includes the following:
- Calico updated to version 3.13.3
- etcd updated to version 3.4.7
- Kubernetes Dashboard updated to version 2.0.0
- Kubernetes NodeLocal DNS cache updated to version 1.15.12 and this feature is now generally available (GA), but still disabled by default
- CoreDNS deployment configuration is updated to use pod topology spread constraints so pods prefer scheduling across worker nodes and zones to improve cluster DNS availability
- New: Zone aware DNS beta feature that further extends cluster DNS availability for multizone clusters
See the IBM Cloud Kubernetes Service version 1.18 changelog for details.
Kubernetes support and updates
IBM Cloud Kubernetes Service now supports the latest three versions of Kubernetes: 1.16, 1.17, and 1.18. Clusters that are running Kubernetes versions 1.13 and earlier are unsupported. Clusters running 1.14 are deprecated and will be unsupported on May 31. Clusters running 1.15 are now deprecated with end of support tentatively scheduled for August 29. It is important to note clusters that run deprecated or unsupported Kubernetes versions may not receive fixes for security vulnerabilities until they are updated to a supported version. Review the potential impact of each Kubernetes version update and update your clusters today.