huqiang)) Courtesy of SIG Apps, SIG Architecture, SIG Storage, and SIG Testing L1128:- The API server and client-go libraries have been fixed to support additional non-alpha-numeric characters in UserInfo "extra" data keys. Both should be updated in order to properly support extra data containing "/" characters or other characters disallowed in HTTP headers. ([#65799](https://github.com/kubernetes/kubernetes/pull/65799), [@dekkagaijin](https://github.com/dekkagaijin)) Courtesy of SIG Auth L1129:-...

Locking the feature custom profiling in kubectl debug to true. ([#127187](https://github.com/kubernetes/kubernetes/pull/127187), [@ardaguclu](https://github.com/ardaguclu)) [SIG CLI and Testing] L157:- New implementation of watch cache using btree data structure. Implementation is not enabled yet. ([#126754](https://github.com/kubernetes/kubernetes/pull/126754), [@serathius](https://github.com/serathius)) [SIG API Machinery, Auth, Cloud Provider and Etcd] L158:- Promote SizeMemoryBackedVolumes to...

([#125571](https://github.com/kubernetes/kubernetes/pull/125571), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, Auth, Node, Scheduling and Testing] L611:- Kube-apiserver: ControllerRevision objects are now verified to contain valid JSON data in the `data` field. ([#125549](https://github.com/kubernetes/kubernetes/pull/125549), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Apps] L612:- Kube-apiserver: the `--encryption-provider-config` file is now loaded with strict deserialization,...

WARNING: etcd backup strongly recommended L1151: L1152:Before updating to 1.6, you are strongly recommended to back up your etcd data. L1153:Please consult the installation procedure you are using (kargo, kops, kube-up, L1154:kube-aws, kubeadm etc) for specific advice. L1155: L1156:1.6 encourages etcd3, and switching from etcd2 to etcd3 involves a full L1157:migration of data between different storage engines. You must stop the API L1158:from writing to etcd during an etcd2 -> etcd3 migration. HA installations...

([#60301](https://github.com/kubernetes/kubernetes/pull/60301), [@tnozicka](https://github.com/tnozicka)) L1503: L1504:* ConfigMap objects now support binary data via a new `binaryData` field. When using `kubectl create configmap --from-file`, files containing non-UTF8 data will be placed in this new field in order to preserve the non-UTF8 data. Note that kubectl's `--append-hash` feature doesn't take `binaryData` into account. Use of this feature requires 1.10+ apiserver and kubelets. ([#57938](h...

PreFilter plugin returns nodes that do not exist. ([#124559](https://github.com/kubernetes/kubernetes/pull/124559), [@chengjoey](https://github.com/chengjoey)) [SIG Scheduling and Testing] L884:- Fixes a 1.29.0 regression that introduced a possible data race that could cause panics in kube-controller-manager and kube-scheduler ([#124518](https://github.com/kubernetes/kubernetes/pull/124518), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery and Scheduling] L885:- Kubeadm: fix a bug when...

pull/64665), [@stealthybox](https://github.com/stealthybox)) L2003:* fix data loss issue if using existing azure disk with partitions in disk mount ([#63270](https://github.com/kubernetes/kubernetes/pull/63270), [@andyzhangx](https://github.com/andyzhangx)) L2004:* Meta data of CustomResources is now pruned and schema checked during deserialization of requests and when read from etcd. In the former case, invalid meta data is rejected, in the later it is dropped from the CustomResource objects. ...

ed-to-new-crd-apis) L286: - [Workloads that saturate nodes with pods may see pods that fail due to node admission](#workloads-that-saturate-nodes-with-pods-may-see-pods-that-fail-due-to-node-admission) L287: - [Etcd v3.5.[0-2] data corruption](#etcd-v350-2-data-corruption) L288: - [Urgent Upgrade Notes](#urgent-upgrade-notes) L289: - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade) L290: - [Changes by Kind](#changes-by-kind-16) L291:...

@liggitt](https://github.com/liggitt)) L1192:* KMS: Alpha integration with GCP KMS was removed in favor of a future out-of-process extension point. Discontinue use of the GCP KMS integration and ensure [data has been decrypted](https://kubernetes.io/docs/tasks/administer-cluster/encrypt-data/#decrypting-all-data) (or reencrypted with a different provider) before upgrading ([#54759](https://github.com/kubernetes/kubernetes/pull/54759),[ @sakshamsharma](https://github.com/sakshamsharma)) L1193: L1194:### **CLI**...

ernetes/kubernetes/pull/108129), [@ahg-g](https://github.com/ahg-g)) L2548:- The AnyVolumeDataSource feature is now beta, and the feature gate is enabled by default. In order to provide user feedback on PVCs with data sources, deployers must install the VolumePopulators CRD and the data-source-validator controller. ([#108736](https://github.com/kubernetes/kubernetes/pull/108736), [@bswartz](https://github.com/bswartz)) L2549:- The CertificateSigningRequest `spec.expirationSeconds` API field has graduated...