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Linode Kubernetes Engine v1.21.0
Added
- Added support for Graceful Node Shutdown in v1.20 and v1.21 clusters. Existing clusters must recycle their nodes to finish the upgrade.
- Added support for optional eBPF data planes by having new LKE nodes mount the BPF filesystem on startup.
Changed
- Upgraded clusters using Kubernetes 1.20 to patch version 1.20.7.
- Upgraded clusters using Kubernetes 1.19 to patch version 1.19.11.
- Upgraded clusters using Kubernetes 1.18 to patch version 1.18.19.
- Upgraded coreDNS image from v1.8.0 to v1.8.4
- Upgraded Calico CNI from v3.10.4 to v3.19.0
Fixed
- Disabled rpcbind by default on new LKE nodes, to avoid having unnecessary ports open.
- Fixed bug where kubelet and kubeadm configs in v1.21 clusters would still mention v1.20 text.