// Using this field will require 1.10+ apiserver and
  // kubelet.
  // +optional
  map<string, bytes> binaryData = 3;
}

// ConfigMapEnvSource selects a ConfigMap to populate the environment
// variables with.
//
// The contents of the target ConfigMap's Data field will represent the
// key-value pairs as environment variables.
message ConfigMapEnvSource {

- Added new feature gate called `RuntimeClassInImageCriApi` to address `kubelet` changes needed for KEP 4216.
  Noteable changes:
  1. Populate new `RuntimeHandler` field in CRI's `ImageSpec` struct during image pulls from container runtimes.