[ { "type": "api-change", "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." } ]