容器集群管理系统发布了 1.8.9-beta.0 和 1.8.8 版本，1.8.8 有以下值得关注的更新：
Configurable etcd quota backend bytes in GCE
Cluster Autoscaler 1.0.4
Prevent kubelet from getting wedged if initialization of modules returns an error.
Updates Calico version to v2.6.7 (Fixed a bug where Felix would crash when parsing a NetworkPolicy with a named port.
Configurable etcd compaction frequency in GCE
[GCE] Apiserver uses InternalIP as the most preferred kubelet address type by default.
Updated priority of mirror pod according to PriorityClassName.
Fix kubelet to correctly umounts mount points for glusterfs when transport endpoint is not connected and nfs when there is a stale file handle
Detach and clear bad disk URI
Expose Metrics Server metrics via /metric endpoint.
Access to externally managed IP addresses via the kube-apiserver service proxy subresource is no longer allowed by default. This can be re-enabled via the ServiceProxyAllowExternalIPs feature gate, but will be disallowed completely in 1.11
Add apiserver metric for number of requests dropped because of inflight limit.
Add apiserver metric for current inflight-request usage.
Update Calico version to v2.6.6
Correctly handle transient connection reset errors on GET requests from client library.
Fixes an issue where the resourceVersion of an object in a DELETE watch event was not the resourceVersion of the delete itself, but of the last update to the object. This could disrupt the ability of clients clients to re-establish watches properly.
Fix a bug affecting nested data volumes such as secret, configmap, etc.
Fix garbage collection and resource quota when the controller-manager uses --leader-elect=false
Fixed encryption key and encryption provider rotation
软件详情：https://github.com/kubernetes/kubernetes/
下载地址：https://github.com/kubernetes/kubernetes/releases/tag/v1.9.4-beta.0
来自:开源中国社区
