[
  {
    "category": "``mediapackage``", 
    "description": "SPEKE v2 is an upgrade to the existing SPEKE API to support multiple encryption keys, based on an encryption contract selected by the customer.", 
    "type": "api-change"
  }, 
  {
    "category": "``imagebuilder``", 
    "description": "This release adds support for Block Device Mappings for container image builds, and adds distribution configuration support for EC2 launch templates in AMI builds.", 
    "type": "api-change"
  }
]