pkg syscall (freebsd-riscv64), const CLOCAL = 32768 #53466
pkg syscall (freebsd-riscv64), const CLOCAL ideal-int #53466
pkg syscall (freebsd-riscv64), const CREAD = 2048 #53466
pkg syscall (freebsd-riscv64), const CREAD ideal-int #53466
pkg syscall (freebsd-riscv64), const CS5 = 0 #53466
pkg syscall (freebsd-riscv64), const CS5 ideal-int #53466
pkg syscall (freebsd-riscv64), const CS6 = 256 #53466

- Pod spread constraints have been added in alpha. You can use these constraints to control how Pods are spread across the cluster among failure-domains. ([#77327](https://github.com/kubernetes/kubernetes/pull/77327), [#77760](https://github.com/kubernetes/kubernetes/pull/77760), [#77828](https://github.com/...

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    * To avoid that negative effect only use per pod metrics from pods that are:
    * - ready (so metrics about them should be valid), or
    * - unready but creation and last readiness change timestamps are apart more than 10s (pods that have formerly been ready and so metrics are in at least some cases (pod becoming unready because of overload) very useful).

 - Scheduler's CycleState now embeds internal read/write locking inside its `Read()` and `Write()` functions. Meanwhile, `Lock()` and `Unlock()` function are removed. Scheduler plugin developers are now required to remove `CycleState#Lock()` and `CycleState#Unlock()`. Just simply use `Read()` and `Write()` as they're natively thread-safe now. ([#101542](https://github.com/kubernetes/kubernetes/pull/101542), [@Huang-Wei](https://github.com/Huang-Wei))...

* The v1.Service.PublishNotReadyAddresses field is added to notify DNS addons to publish the notReadyAddresses of Enpdoints. The "service.alpha.kubernetes.io/tolerate-unready-endpoints" annotation has been deprecated and will be removed when clients have sufficient time to consume the field. ([#49061](https://github.com/kubernetes/kubernetes/pull/49061), [@kow3ns](https://github.com/kow3ns))

### **API Machinery**

*   The kube-apiserver `--etcd-quorum-read` flag is deprecated and the ability to switch off quorum read will be removed in a future release. ([#53795](https://github.com/kubernetes/kubernetes/pull/53795),[ @xiangpengzhao](https://github.com/xiangpengzhao))

- `readOnly` volumes now support recursive read-only mounts for kernel versions >= 5.12."
   ([#123180](https://github.com/kubernetes/kubernetes/pull/123180), [@AkihiroSuda](https://github.com/AkihiroSuda))
- cri-api: Implemented KEP-3857: Recursive Read-only (RRO) mounts.

* Default behavior in Cinder storageclass is changed. If availability is not specified, the zone is chosen by algorithm. It makes possible to spread stateful pods across many zones. ([#44798](https://github.com/kubernetes/kubernetes/pull/44798), [@zetaab](https://github.com/zetaab))

    - [Container Images](#container-images-2)
  - [Changelog since v1.30.0](#changelog-since-v1300)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)
  - [Changes by Kind](#changes-by-kind-2)
    - [Deprecation](#deprecation-1)
    - [API Change](#api-change-1)
    - [Feature](#feature-2)
    - [Failing Test](#failing-test)