* Update gcr.io/google-containers/rescheduler to v0.2.2, which uses busybox as a base image instead of ubuntu. ([#41911](https://github.com/kubernetes/kubernetes/pull/41911), [@ixdy](https://github.com/ixdy))

## Breaking Changes

*   Prebuilt binaries are now (as of TensorFlow 1.10) built against NCCL 2.2 and
    no longer include NCCL in the binary install. TensorFlow usage with multiple
    GPUs and NCCL requires upgrade to
    [NCCL 2.2](https://developer.nvidia.com/nccl). See updated install guides:
    [TensorFlow GPU support](https://www.tensorflow.org/install/gpu) and

(b) under Patent Claims of such Contributor to make, use, sell, offer
    for sale, have made, import, and otherwise transfer either its
    Contributions or its Contributor Version.

2.2. Effective Date

The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.

- The feature gate `RootCAConfigMap` graduated to GA in v1.21 and therefore will be unconditionally enabled. This flag will be removed in v1.22 release. ([#98033](https://github.com/kubernetes/kubernetes/pull/98033), [@zshihang](https://github.com/zshihang))