- kube-apiserver `--admission-control-config-file` files are now validated strictly (EnableStrict). Duplicate and unknown fields in the configuration will now cause an error. ([#128013](https://github.com/kubernetes/kubernetes/pull/128013), [@seans3](https://github.com/seans3))

- github.com/envoyproxy/go-control-plane: [v0.12.0 → v0.13.0](https://github.com/envoyproxy/go-control-plane/compare/v0.12.0...v0.13.0)
- github.com/envoyproxy/protoc-gen-validate: [v1.0.4 → v1.1.0](https://github.com/envoyproxy/protoc-gen-validate/compare/v1.0.4...v1.1.0)
- github.com/go-logfmt/logfmt: [v0.5.1 → v0.4.0](https://github.com/go-logfmt/logfmt/compare/v0.5.1...v0.4.0)

- Kubeadm now propagates proxy environment variables to kube-proxy ([#84559](https://github.com/kubernetes/kubernetes/pull/84559), [@yastij](https://github.com/yastij))
- Update the latest validated version of Docker to 19.03 ([#84476](https://github.com/kubernetes/kubernetes/pull/84476), [@neolit123](https://github.com/neolit123))

- Component-base: validate that log-flush-frequency is positive and return an error instead of panic-ing ([#133540](https://github.com/kubernetes/kubernetes/pull/133540), [@BenTheElder](https://github.com/BenTheElder)) [SIG Architecture, Instrumentation, Network and Node]

- github.com/envoyproxy/go-control-plane: [49ff273 → 9239064](https://github.com/envoyproxy/go-control-plane/compare/49ff273...9239064)
- github.com/envoyproxy/protoc-gen-validate: [v0.1.0 → v0.10.1](https://github.com/envoyproxy/protoc-gen-validate/compare/v0.1.0...v0.10.1)
- github.com/golang/glog: [v1.0.0 → v1.1.0](https://github.com/golang/glog/compare/v1.0.0...v1.1.0)

- github.com/envoyproxy/go-control-plane: [v0.13.0 → v0.13.4](https://github.com/envoyproxy/go-control-plane/compare/v0.13.0...v0.13.4)
- github.com/envoyproxy/protoc-gen-validate: [v1.1.0 → v1.2.1](https://github.com/envoyproxy/protoc-gen-validate/compare/v1.1.0...v1.2.1)
- github.com/fsnotify/fsnotify: [v1.7.0 → v1.9.0](https://github.com/fsnotify/fsnotify/compare/v1.7.0...v1.9.0)

- github.com/go-openapi/strfmt: [v0.19.3 → v0.19.5](https://github.com/go-openapi/strfmt/compare/v0.19.3...v0.19.5)
- github.com/go-openapi/validate: [v0.19.5 → v0.19.8](https://github.com/go-openapi/validate/compare/v0.19.5...v0.19.8)
- github.com/gogo/protobuf: [v1.3.1 → v1.3.2](https://github.com/gogo/protobuf/compare/v1.3.1...v1.3.2)

- The Conformance test "validates that there is no conflict between pods with same hostPort but different hostIP and protocol" now validates the connectivity to each hostPort, in addition to the functionality. ([#96627](https://github.com/kubernetes/kubernetes/pull/96627), [@aojea](https://github.com/aojea)) [SIG Scheduling and Testing]...

  * When creating a container using envFrom. ([#42083](https://github.com/kubernetes/kubernetes/pull/42083), [@fraenkel](https://github.com/fraenkel))
    * validate the name of the ConfigMap in a ConfigMapRef
    * validate the name of the Secret in a SecretRef

- github.com/envoyproxy/go-control-plane: [v0.10.3 → 9239064](https://github.com/envoyproxy/go-control-plane/compare/v0.10.3...9239064)
- github.com/envoyproxy/protoc-gen-validate: [v0.9.1 → v0.10.1](https://github.com/envoyproxy/protoc-gen-validate/compare/v0.9.1...v0.10.1)
- github.com/golang/glog: [v1.0.0 → v1.1.0](https://github.com/golang/glog/compare/v1.0.0...v1.1.0)
- google.golang.org/grpc: v1.54.0 → v1.56.3