- Fixes a regression exposed in 1.27 by kubectl switching to openapi v3 by resolving a flake in openapi v3 aggregation ([#119839](https://github.com/kubernetes/kubernetes/pull/119839), [@atiratree](https://github.com/atiratree)) [SIG API Machinery]

* Bug fixes

  * Changed Kubelet default image-gc-high-threshold to 85% to resolve a conflict with default settings in docker that prevented image garbage collection from resolving low disk space situations when using devicemapper storage. ([#40432](https://github.com/kubernetes/kubernetes/pull/40432), [@sjenning](https://github.com/sjenning))

* Add 'X-Content-Type-Options: nosniff" to some error messages ([#37190](https://github.com/kubernetes/kubernetes/pull/37190), [@brendandburns](https://github.com/brendandburns))
* Fixes bug in resolving client-requested API versions ([#38533](https://github.com/kubernetes/kubernetes/pull/38533), [@DirectXMan12](https://github.com/DirectXMan12))

- Fixed a bug where Job status updates fail after resuming a Job that was previously started and suspended.

- Allow KUBE_TEST_REPO_LIST to be a remote url ([#108429](https://github.com/kubernetes/kubernetes/pull/108429), [@dims](https://github.com/dims))
- Client-go: if resetting the body fails before a retry, an error is now surfaced to the user. ([#109050](https://github.com/kubernetes/kubernetes/pull/109050), [@MadhavJivrajani](https://github.com/MadhavJivrajani))

applied configuration. Removed fields which have no other owners are deleted from the live object, or reset to their default value if they have one. Safe ownership transfers, such as the transfer of a `replicas` field from a user to an HPA without resetting to the default value are documented in [Transferring Ownership](https://kubernetes.io/docs/reference/using-api/api-concepts/#transferring-ownership) ([#92661](https://github.com/kubernetes/kubernetes/pull/92661), [@jpbetz](https://github.com/jpbetz))...

applied configuration. Removed fields which have no other owners are deleted from the live object, or reset to their default value if they have one. Safe ownership transfers, such as the transfer of a `replicas` field from a user to an HPA without resetting to the default value are documented in [Transferring Ownership](https://kubernetes.io/docs/reference/using-api/api-concepts/#transferring-ownership) ([#92661](https://github.com/kubernetes/kubernetes/pull/92661), [@jpbetz](https://github.com/jpbetz))...

## Changelog since v1.26.0

## Changes by Kind

### API Change

- The list-type of the alpha resourceClaims field introduced to Pods in 1.26.0 was modified from "set" to "map", resolving an incompatibility with use of this schema in CustomResourceDefinitions and with server-side apply. ([#114617](https://github.com/kubernetes/kubernetes/pull/114617), [@JoelSpeed](https://github.com/JoelSpeed)) [SIG API Machinery]

    yield request_state
    legacy_request_state_context_var.reset(contextvar_token)
```

...before this change it would raise an error when resetting the context variable, because the `contextvars` context was different, because of the way it was implemented.