Aws\- Passing null to hash_init is deprecated on PHP 8.1.Aws\LexModelsV2- 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.Aws\TranscribeService- Documentation fix for APIStartMedicalTranscriptionJobRequest, now showing min sample rate as 16khzAws\Transfer- Adding more descriptive error types for managed workflows