`tf.train.experimental.enable_mixed_precision_graph_rewrite()`.
*   Add environment variable `TF_CUDNN_DETERMINISTIC`. Setting to "true" or "1"
    forces the selection of deterministic cuDNN convolution and max-pooling
    algorithms. When this is enabled, the algorithm selection procedure itself
    is also deterministic.

## Breaking Changes

*   Many backwards incompatible API changes have been made to clean up the APIs

- Fixes a bug of identifying the correct containerd process. ([#97888](https://github.com/kubernetes/kubernetes/pull/97888), [@pacoxu](https://github.com/pacoxu))
- Fixes add-on manager leader election to use leases instead of endpoints, similar to what kube-controller-manager does in 1.20 ([#98968](https://github.com/kubernetes/kubernetes/pull/98968), [@liggitt](https://github.com/liggitt))

* Migrate controller-manager and scheduler to EndpointsLeases leader election. ([#84084](https://github.com/kubernetes/kubernetes/pull/84084), [@wojtek-t](https://github.com/wojtek-t))

= {\n      root: this._rootElement,\n      threshold: this._config.threshold,\n      rootMargin: this._config.rootMargin\n    }\n\n    return new IntersectionObserver(entries => this._observerCallback(entries), options)\n  }\n\n  // The logic of selection\n  _observerCallback(entries) {\n    const targetElement = entry => this._targetLinks.get(`#${entry.target.id}`)\n    const activate = entry => {\n      this._previousScrollData.visibleEntryTop = entry.target.offsetTop\n      this._process(targetElement(entry))\n...

  
  - make kube::util::find-binary not dependent on bazel-out/ structure
  
    Implement an aspect that outputs go_build_mode metadata for go binaries,
    and use that during binary selection. ([#94449](https://github.com/kubernetes/kubernetes/pull/94449), [@justaugustus](https://github.com/justaugustus)) [SIG Architecture, CLI, Cluster Lifecycle, Node, Release and Testing]
- Kubernetes is now built using go1.15.5

* kube-addon-manager has been updated to v9.0.2 to fix a bug in leader election (https://github.com/kubernetes/kubernetes/pull/80575) ([#80861](https://github.com/kubernetes/kubernetes/pull/80861), [@mborsz](https://github.com/mborsz))

   ([#123281](https://github.com/kubernetes/kubernetes/pull/123281), [@seans3](https://github.com/seans3))

to match the specification. It's unfortunate // that we need to do a shift instead of a mask, but see the comment on // rightShift. // // These are the most dangerous lines in the package and maybe in the // library: a single bit of bias in the selection of nonces would likely // lead to key recovery, but no tests would fail. Look but DO NOT TOUCH. if excess := len(b)*8 - c.N.BitLen(); excess > 0 { // Just to be safe, assert that this only happens for the one curve that // doesn't have a round number...