- E2e test for PodFsGroupChangePolicy ([#96247](https://github.com/kubernetes/kubernetes/pull/96247), [@saikat-royc](https://github.com/saikat-royc)) [SIG Storage and Testing]
- Ephemeral containers now apply the same API defaults as initContainers and containers ([#94896](https://github.com/kubernetes/kubernetes/pull/94896), [@wawa0210](https://github.com/wawa0210)) [SIG Apps and CLI]
- Graduate the Pod Resources API to G.A

  // Cannot be updated.
  // More info: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/
  // +patchMergeKey=name
  // +patchStrategy=merge
  repeated Container initContainers = 20;

  // List of containers belonging to the pod.
  // Containers cannot currently be added or removed.
  // There must be at least one container in a Pod.
  // Cannot be updated.

* The deprecated alpha and beta initContainer annotations are no longer supported. Init containers must be specified using the initContainers field in the pod spec. ([#51816](https://github.com/kubernetes/kubernetes/pull/51816), [@liggitt](https://github.com/liggitt))

* The deprecated alpha and beta initContainer annotations are no longer supported. Init containers must be specified using the initContainers field in the pod spec. ([#51816](https://github.com/kubernetes/kubernetes/pull/51816), [@liggitt](https://github.com/liggitt))

- Added `--keep-*` flags to `kubectl debug`, which enables to control the removal
  of probes, labels, annotations and initContainers from copy pod. ([#123149](https://github.com/kubernetes/kubernetes/pull/123149), [@mochizuki875](https://github.com/mochizuki875)) [SIG CLI and Testing]

- Fix `EndpointSlice` describe panic when an Endpoint doesn't have zone. ([#101025](https://github.com/kubernetes/kubernetes/pull/101025), [@tnqn](https://github.com/tnqn))
- Fix `kubectl set env` or `resources` not working for initcontainers. ([#101669](https://github.com/kubernetes/kubernetes/pull/101669), [@carlory](https://github.com/carlory))

* Restores the ability of older clients to delete and scale jobs with initContainers. ([#59880](https://github.com/kubernetes/kubernetes/pull/59880), [@liggitt](https://github.com/liggitt))

- InitContainer's image location will be considered in scheduling when prioritizing nodes. ([#123366](https://github.com/kubernetes/kubernetes/pull/123366), [@kerthcet](https://github.com/kerthcet)) [SIG Scheduling]

* The GitRepo volume type is deprecated. To provision a container with a git repo, mount an `EmptyDir` into an `InitContainer` that clones the repo using git, then mount the `EmptyDir` into the Pod's container.
([#63445](https://github.com/kubernetes/kubernetes/pull/63445), [@ericchiang](https://github.com/ericchiang))

- Kube-apiserver: fixes a 1.28 regression printing pods with invalid initContainer status ([#124909](https://github.com/kubernetes/kubernetes/pull/124909), [@liggitt](https://github.com/liggitt)) [SIG Node]