* test/e2e/e2e.test: ([#69105](https://github.com/kubernetes/kubernetes/pull/69105), [@pohly](https://github.com/pohly))
   * -viper-config can be used to set also the options defined by command line flags
   * the default config file is "e2e.yaml/toml/json/..." and the test starts when no such config is found (as before) but if -viper-config is used, the config file must exist

  - [beta] Introducing the beta version containerized node conformance test gcr.io/google_containers/node-test:0.2 for users to verify node setup. ([docs](http://kubernetes.io/docs/admin/node-conformance/)) ([kubernetes/features#84](https://github.com/kubernetes/enhancements/issues/84))
- **Scheduling**

* Implement kubectl rollout undo and history for DaemonSet ([#46144](https://github.com/kubernetes/kubernetes/pull/46144), [@janetkuo](https://github.com/janetkuo))
* Respect PDBs during node upgrades and add test coverage to the ServiceTest upgrade test. ([#45748](https://github.com/kubernetes/kubernetes/pull/45748), [@mml](https://github.com/mml))

  - [Changelog since v1.23.6](#changelog-since-v1236)
  - [Changes by Kind](#changes-by-kind-10)
    - [API Change](#api-change-2)
    - [Feature](#feature-5)
    - [Failing Test](#failing-test)
    - [Bug or Regression](#bug-or-regression-10)
  - [Dependencies](#dependencies-10)
    - [Added](#added-10)
    - [Changed](#changed-10)
    - [Removed](#removed-10)
- [v1.23.6](#v1236)

pkg bufio, var ErrAdvanceTooFar error
pkg bufio, var ErrNegativeAdvance error
pkg bufio, var ErrTooLong error
pkg bytes, const MinRead = 512
pkg bytes, func TrimPrefix([]uint8, []uint8) []uint8
pkg bytes, func TrimSuffix([]uint8, []uint8) []uint8
pkg bytes, method (*Buffer) Grow(int)
pkg bytes, method (*Reader) WriteTo(io.Writer) (int64, error)
pkg compress/flate, const BestCompression = 9
pkg compress/flate, const BestSpeed = 1

pkg syscall (linux-arm-cgo), const F_SETPIPE_SZ ideal-int
pkg syscall (linux-arm-cgo), const F_SETSIG ideal-int
pkg syscall (linux-arm-cgo), const F_SHLCK ideal-int
pkg syscall (linux-arm-cgo), const F_TEST ideal-int
pkg syscall (linux-arm-cgo), const F_TLOCK ideal-int
pkg syscall (linux-arm-cgo), const F_ULOCK ideal-int
pkg syscall (linux-arm-cgo), const F_UNLCK ideal-int