In payment methods
\Magento\Payment\Model\Method\AbstractMethod
\Magento\Payment\Model\Method\Cc
both are deprecated.
In stead to extends both method now as per this link , we should implements
\Magento\Payment\Model\MethodInterface
Is there any specific reason for deprecated both class ? because if we implements interface we have to defined all methods in our base class, and its lots of other work added for payment gateway developers.
I am looking for brief explanations with reasons if any have idea about that.