[
    {
        "type": "api-change",
        "category": "TranscribeService",
        "description": "Add support for granular PIIEntityTypes when using Batch ContentRedaction."
    },
    {
        "type": "api-change",
        "category": "MediaConvert",
        "description": "AWS Elemental MediaConvert SDK has added support for 4K AV1 output resolutions & 10-bit AV1 color, the ability to ingest sidecar Dolby Vision XML metadata files, and the ability to flag WebVTT and IMSC tracks for accessibility in HLS."
    }
]