### Other notable changes

* CustomResourceDefinitions: OpenAPI v3 validation schemas containing `$ref`references are no longer permitted (valid references could not be constructed previously because property ids were not permitted either). Before upgrading, ensure CRD definitions do not include those `$ref` fields. ([#58438](https://github.com/kubernetes/kubernetes/pull/58438), [@carlory](https://github.com/carlory))

Bootstrap specific; comment the following selector out\n    //a[href]::after {\n    //  content: \" (\" attr(href) \")\";\n    //}\n\n    abbr[title]::after {\n      content: \" (\" attr(title) \")\";\n    }\n\n    // Bootstrap specific; comment the following selector out\n    //\n    // Don't show links that are fragment identifiers,\n    // or use the `javascript:` pseudo protocol\n    //\n\n    //a[href^=\"#\"]::after,\n    //a[href^=\"javascript:\"]::after {\n    // content: \"\";\n    //}\n\n...

- This code change fixes the bug that UDP services would trigger unnecessary LoadBalancer updates. The root cause is that a field not working for non-TCP protocols is considered.
  ref: https://github.com/kubernetes-sigs/cloud-provider-azure/pull/1090 ([#107981](https://github.com/kubernetes/kubernetes/pull/107981), [@lzhecheng](https://github.com/lzhecheng))

* PodDisruptionBudget now uses [ControllerRef](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/api-machinery/controller-ref.md) to make the right decisions about Pod eviction even if the built in application controllers have overlapping selectors.

### **Security**
#### Admission Control

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pkg net, type Listener interface, Addr() Addr
pkg net, type Listener interface, Close() error
pkg net, type MX struct
pkg net, type MX struct, Host string
pkg net, type MX struct, Pref uint16
pkg net, type OpError struct
pkg net, type OpError struct, Addr Addr
pkg net, type OpError struct, Err error
pkg net, type OpError struct, Net string
pkg net, type OpError struct, Op string