Changes to Update an existing message in the conversation

the delivery response's property type changed from object to no type for status 200

the media/items response's property type changed from object to no type for status 200

the delivery response's property type changed from no type to object for status 200

the media/items response's property type changed from no type to object for status 200

the index response's property default value 0 was added for the status 200

added the new optional request property Subject

api tag ConversationsV1Message added

added the optional property content_sid to the response with the 200 status

the links response's property format changed from object to uri-map for status 200

the delivery response's property type changed from object to no type, and format from object to no format for status 200

the media/items response's property type changed from object to no type, and format from object to no format for status 200

the delivery response's property format changed from no format to object for status 200

the links response's property format changed from no format to object for status 200

the media/items response's property format changed from no format to object for status 200

the response property account_sid became nullable for the status 200

the response property attributes became nullable for the status 200

the response property author became nullable for the status 200

the response property body became nullable for the status 200

the response property conversation_sid became nullable for the status 200

the response property date_created became nullable for the status 200

the response property date_updated became nullable for the status 200

the response property delivery became nullable for the status 200

the response property links became nullable for the status 200

the response property media became nullable for the status 200

the response property participant_sid became nullable for the status 200

the response property sid became nullable for the status 200

the response property url became nullable for the status 200

the response property index became nullable for the status 200

api operation id UpdateConversationMessage was added

api tag GA removed