A secondary benefit of defending all users' freedom is that
improvements made in alternate versions of the program, if they
receive widespread use, become available for other developers to
incorporate.  Many developers of free software are heartened and
encouraged by the resulting cooperation.  However, in the case of
software used on network servers, this result may fail to come about.

- DRA: When the prioritized list feature was used in a request and the resulting number of allocated devices exceeded the number of allowed devices per claim, the scheduler aborted the attempt to allocate devices early. Previously, it tried to many different combinations, which could take a long time. ([#130593](https://github.com/kubernetes/kubernetes/pull/130593), [@mortent](https://github.com/mortent)) [SIG Apps, Node, Scheduling and Testing]

## Changelog since v1.29.5

## Changes by Kind

### API Change

- Improved scheduling performance when many nodes, and prefilter returns 1-2 nodes (e.g. daemonset)
  

H,GAC5Bf,KAAKkB,SAAW,MAIXmB,mBAAP,SAAwBrE,EAAQkG,GAC9B,OAAOlE,KAAKsC,MAAK,WACf,IAAMC,EAAWzF,UAAEkD,MACfwC,EAAOD,EAASC,KAAKzB,GAEpByB,IACHA,EAAO,IAAIW,EAAOnD,MAClBuC,EAASC,KAAKzB,EAAUyB,IAG1BA,EAAKY,yBAA2Bc,EAEjB,WAAXlG,GACFwE,EAAKxE,S,6BAxEX,WACE,MAnCY,Y,EA2BVmF,GAyFNrG,UAAEZ,UACC0G,GA3GuB,2BA2GEI,GAA6B,SAAA5C,GACrD,IAAI+D,EAAS/D,EAAMK,OACb2D,EAAgBD,EAMtB,GAJKrH,UAAEqH,GAAQlC,SAlHO,SAmHpBkC,EAASrH,UAAEqH,GAAQvC,QAAQsB,GAAiB,KAGzCiB,GAAUA,EAAOJ,aAAa,aAAeI,EAAOR,UAAUC,SAAS,YAC1ExD,EAAMuC,qBACD,CAC...

- Reduce API server memory when many CRDs are loaded by sharing a single etcd3 client logger across all clients ([#111648](https://github.com/kubernetes/kubernetes/pull/111648), [@negz](https://github.com/negz)) [SIG API Machinery]

### Immutable Secrets and ConfigMaps (beta)

Secret and ConfigMap volumes can be marked as immutable, which significantly reduces load on the API server if there are many Secret and ConfigMap volumes in the cluster.
See [ConfigMap](https://kubernetes.io/docs/concepts/configuration/configmap/) and [Secret](https://kubernetes.io/docs/concepts/configuration/secret/) for more information.

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markets

- Using exec auth plugins with kubectl no longer results in warnings about constructing many client instances from the same exec auth config. ([#97857](https://github.com/kubernetes/kubernetes/pull/97857), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Auth]

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* Improve efficiency of preemption logic in clusters with many pending pods. ([#72895](https://github.com/kubernetes/kubernetes/pull/72895), [@bsalamat](https://github.com/bsalamat))