### API Change

- 'A new `preEnqueue` extension point was added to scheduler's component config
  `v1beta2/v1beta3/v1`.'

- Fix a panic when using invalid output format in kubectl create secret command ([#107345](https://github.com/kubernetes/kubernetes/pull/107345), [@rikatz](https://github.com/rikatz)) [SIG CLI]

- If someone had the `ProbeTerminationGracePeriod` alpha feature enabled in 1.21, they should update/delete any workloads/pods with probe `terminationGracePeriods` < 1 before upgrading ([#103245](https://github.com/kubernetes/kubernetes/pull/103245), [@wzshiming](https://github.com/wzshiming))

- Fixed a bug where `events/v1` `Events` with similar event type and reporting instance were not aggregated by `client-go`. ([#112365](https://github.com/kubernetes/kubernetes/pull/112365), [@dgrisonnet](https://github.com/dgrisonnet))

- Added warning for dup ports update/patching in pod's container ports and service ports. ([#113245](https://github.com/kubernetes/kubernetes/pull/113245), [@pacoxu](https://github.com/pacoxu))

### Other (Cleanup or Flake)

- Update the Debian images to pick up CVE fixes in the base images:
  - Update the `debian-base` image to v1.7.0
  - Update the `debian-iptables` image to v1.6.1 ([#102341](https://github.com/kubernetes/kubernetes/pull/102341), [@cpanato](https://github.com/cpanato)) [SIG API Machinery and Testing]

## Dependencies

### Added
_Nothing has changed._

### Changed

* Support new NODE_OS_DISTRIBUTION 'custom' on GCE on a new add event. ([#61235](https://github.com/kubernetes/kubernetes/pull/61235), [@yguo0905](https://github.com/yguo0905))
* include file name in the error when visiting files ([#60919](https://github.com/kubernetes/kubernetes/pull/60919), [@dixudx](https://github.com/dixudx))

  - [Changelog since v1.23.15](#changelog-since-v12315)
  - [Changes by Kind](#changes-by-kind-1)
    - [API Change](#api-change)
    - [Feature](#feature-1)
    - [Bug or Regression](#bug-or-regression-1)
  - [Dependencies](#dependencies-1)
    - [Added](#added-1)
    - [Changed](#changed-1)
    - [Removed](#removed-1)
- [v1.23.15](#v12315)
  - [Downloads for v1.23.15](#downloads-for-v12315)
    - [Source Code](#source-code-2)

* Support new NODE_OS_DISTRIBUTION 'custom' on GCE ([#61235](https://github.com/kubernetes/kubernetes/pull/61235), [@yguo0905](https://github.com/yguo0905))

integer, even if it starts with a leading <code>0</code>.
</p>

<pre>
0i
0123i         // == 123i for backward-compatibility
0o123i        // == 0o123 * 1i == 83i
0xabci        // == 0xabc * 1i == 2748i
0.i
2.71828i
1.e+0i
6.67428e-11i
1E6i
.25i
.12345E+5i
0x1p-2i       // == 0x1p-2 * 1i == 0.25i
</pre>


<h3 id="Rune_literals">Rune literals</h3>

<p>