- Fixed a regression since `v1.27.0` in the scheduler framework when running score plugins. 
  The `skippedScorePlugins` number might be greater than `enabledScorePlugins`, 
  so when initializing a slice the `cap(len(skippedScorePlugins) - len(enabledScorePlugins))` is negative, 
  which is not allowed. ([#121632](https://github.com/kubernetes/kubernetes/pull/121632), [@kerthcet](https://github.com/kerthcet))

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## Changelog since v1.26.6

## Changes by Kind

### API Change

- GCE does not support LoadBalancer Services with ports with different protocols (TCP and UDP) ([#115966](https://github.com/kubernetes/kubernetes/pull/115966), [@aojea](https://github.com/aojea)) [SIG Apps and Cloud Provider]

### Feature

- Fixed a regression that sometimes prevented `kubectl portforward` to work when TCP and UDP services were configured on the same port ([#94728](https://github.com/kubernetes/kubernetes/pull/94728), [@amorenoz](https://github.com/amorenoz)) [SIG CLI]

expand(n int) *Nat { if len(x.limbs) > n { panic("bigmod: internal error: shrinking nat") } if cap(x.limbs) < n { newLimbs := make([]uint, n) copy(newLimbs, x.limbs) x.limbs = newLimbs return x } extraLimbs := x.limbs[len(x.limbs):n] clear(extraLimbs) x.limbs = x.limbs[:n] return x } // reset returns a zero nat of n limbs, reusing x's storage if n <= cap(x.limbs). func (x *Nat) reset(n int) *Nat { if cap(x.limbs) < n { x.limbs = make([]uint, n) return x } // Clear both the returned limbs and the previously...

- GCE Windows clusters have their TCP/IP parameters are set to GCE's recommended values. ([#103057](https://github.com/kubernetes/kubernetes/pull/103057), [@jeremyje](https://github.com/jeremyje)) [SIG Cloud Provider and Windows]

## Changes by Kind

### Feature

- Kubernetes is now built with go 1.21.9
  - update debian-base/set-cap to bookworm-v1.0.2 ([#124198](https://github.com/kubernetes/kubernetes/pull/124198), [@cpanato](https://github.com/cpanato)) [SIG API Machinery, Architecture, Release and Testing]

### Bug or Regression

expand(n int) *Nat { if len(x.limbs) > n { panic("bigmod: internal error: shrinking nat") } if cap(x.limbs) < n { newLimbs := make([]uint, n) copy(newLimbs, x.limbs) x.limbs = newLimbs return x } extraLimbs := x.limbs[len(x.limbs):n] clear(extraLimbs) x.limbs = x.limbs[:n] return x } // reset returns a zero nat of n limbs, reusing x's storage if n <= cap(x.limbs). func (x *Nat) reset(n int) *Nat { if cap(x.limbs) < n { x.limbs = make([]uint, n) return x } clear(x.limbs) x.limbs = x.limbs[:n] return...

## Changelog since v1.25.6

## Changes by Kind

### Feature

- Kubelet TCP and HTTP probes are more effective using networking resources: conntrack entries, sockets, ... 

* In GCE with COS, increase TasksMax for Docker service to raise cap on number of threads/processes used by containers. ([#51986](https://github.com/kubernetes/kubernetes/pull/51986), [@yujuhong](https://github.com/yujuhong))