Swagger生成的api客户端不再返回对象

Question

I am using a swagger generated php-api client for eve online's esi api. I used to generate the client with codegen-cli-2.3.1. I generated the new client with codegen-cli-2.4.1. That creates problems, because the client functions not longer return objects but arrays.

With 2.3.1 i would get something like this:

object(Swagger\Client\Model\GetCharactersCharacterIdContracts200Ok)#45 (1) {
    ["container":protected]=>
    array(22) {
    ["assignee_id"]=>
    int(92016026)
    }
}

and to get the values I would do $result->getAssigneeId() because that's what swagger would generate.

with 2.4.1 i get this:

array(19) {
    ["assignee_id"]=>
    int(92016026)
}

where i can simply do $result["assignee_id"].

Now, minor versions are not supposed to break backwards compatibility, correct? Or is swagger as a concept not supposed to be updated? As in, when you you started with one codegen-cli version you simply stick with it to generate future api clients?

So do I only of the choice of staying with 2.3.1 or update to 2.4.1 and go through all my code to change the respective areas?