[
    {
        "type": "bugfix",
        "category": "",
        "description": "Passing null to hash_init is deprecated on PHP 8.1."
    },
    {
        "type": "api-change",
        "category": "TranscribeService",
        "description": "Documentation fix for API `StartMedicalTranscriptionJobRequest`, now showing min sample rate as 16khz"
    },
    {
        "type": "api-change",
        "category": "LexModelsV2",
        "description": "This release makes slotTypeId an optional parameter in CreateSlot and UpdateSlot APIs in Amazon Lex V2 for model building. Customers can create and update slots without specifying a slot type id."
    },
    {
        "type": "api-change",
        "category": "Transfer",
        "description": "Adding more descriptive error types for managed workflows"
    }
]