Spring Cloud version Hoxton.SR5 is giving XML format as HTTP response by default

When I am using <spring-cloud.version>Hoxton.SR5</spring-cloud.version> in my Spring Boot application it is returning me an XML format in the HTTP response by default:

<List>
    <item>
        <productId>1</productId>
        <productName>Samsung LED TV</productName
        <quantity>100</quantity
        <itemType>TV</itemType>
        <itemGroup>Entertainement</itemGroup>
    </item>
</List>

And When I am using <spring-cloud.version>Hoxton.SR3</spring-cloud.version>, it is returning JSON Format:

[
    {
        "productId": 1,
        "productName": "Samsung LED TV",
        "quantity": 100,
        "itemType": "TV",
        "itemGroup": "Entertainement"
    }
]

          

What are the changes made in Hoxton.SR5 that it is returning XML format by default and how can I make sure that I get JSON format while using Hoxton.SR5?.