I have updated Statamic version from 2.10.7 to 2.11.3.

But I am now facing the issue in Bard field type. When I am going to change the content of bard element, it removes style(classes, div etc) of the content. Please check below images.

Before upgrade(version 2.10.7) Before Update

After upgrade(version 2.11.3) After Update

So what is the issue here?