Type unification recursively compares the LHS and RHS types of an
equation, where either or both types may be or contain bound type parameters,
and looks for type arguments for those type parameters such that the LHS
and RHS match (become identical or assignment-compatible, depending on
context).
To that effect, type inference maintains a map of bound type parameters
to inferred type arguments; this map is consulted and updated during type unification.

- Fixed a bug which could have allowed an improperly annotated LoadBalancer service to become active. ([#109601](https://github.com/kubernetes/kubernetes/pull/109601), [@mdbooth](https://github.com/mdbooth))

- LeaseLocks can now have custom Labels that different holders will overwrite when they become the holder of the underlying lease. ([#131632](https://github.com/kubernetes/kubernetes/pull/131632), [@DerekFrank](https://github.com/DerekFrank)) [SIG API Machinery]

plane](https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/high-availability/). An entire new test suite has been created specifically for ensuring these features will stay stable over time.

Certificate management has become more robust in 1.15, with kubeadm now seamlessly rotating all your certificates (on upgrades) before they expire. Check the [kubeadm documentation](https://github.com/kubernetes/website/blob/dev-1.15/content/en/docs/reference/setup-tools/kubeadm/kubeadm-alpha.md)...

* Property `serverAddressByClientCIDRs` in `metav1.APIGroup` (discovery API) now become optional instead of required ([#61963](https://github.com/kubernetes/kubernetes/pull/61963), [@roycaihw](https://github.com/roycaihw))

- Etcd: Update to version 3.5.10 ([#121804](https://github.com/kubernetes/kubernetes/pull/121804), [@mzaian](https://github.com/mzaian)) [SIG API Machinery, Cloud Provider, Cluster Lifecycle, Etcd and Testing]
- Fix: Mount point may become local without calling NodePublishVolume after node rebooting. ([#119923](https://github.com/kubernetes/kubernetes/pull/119923), [@cvvz](https://github.com/cvvz)) [SIG Node and Storage]

list items\n//\n// Use anchor or button elements instead of `li`s or `div`s to create interactive\n// list items. Includes an extra `.active` modifier class for selected items.\n\n.list-group-item-action {\n  width: 100%; // For `<button>`s (anchors become 100% by default though)\n  color: var(--#{$prefix}list-group-action-color);\n  text-align: inherit; // For `<button>`s (anchors inherit)\n\n  // Hover state\n  &:hover,\n  &:focus {\n    z-index: 1; // Place hover/focus items above their siblings...

- Etcd: Update to version 3.5.10 ([#121805](https://github.com/kubernetes/kubernetes/pull/121805), [@mzaian](https://github.com/mzaian)) [SIG API Machinery, Cloud Provider, Cluster Lifecycle, Etcd and Testing]
- Fix: Mount point may become local without calling NodePublishVolume after node rebooting. ([#119923](https://github.com/kubernetes/kubernetes/pull/119923), [@cvvz](https://github.com/cvvz)) [SIG Node and Storage]

- Pods can now be considered for preemption after a previously nominated node has become unschedulable and unresolvable. ([#92604](https://github.com/kubernetes/kubernetes/pull/92604), [@soulxu](https://github.com/soulxu))

list items\n//\n// Use anchor or button elements instead of `li`s or `div`s to create interactive\n// list items. Includes an extra `.active` modifier class for selected items.\n\n.list-group-item-action {\n  width: 100%; // For `<button>`s (anchors become 100% by default though)\n  color: $list-group-action-color;\n  text-align: inherit; // For `<button>`s (anchors inherit)\n\n  // Hover state\n  @include hover-focus() {\n    z-index: 1; // Place hover/focus items above their siblings for proper border...