| ⇢ | B | FrmFieldsHelper::show_add_field_buttons() added | |
| ⇢ | A | FrmFieldsController::add_placeholder_to_select() added | |
| ⇢ | A | FrmFieldType::show_field_options() added | |
| ⇢ | A | FrmFieldType::should_continue_to_field_options() added | |
| ⇢ | A | FrmFieldType::get_bulk_edit_string() added | |
| ⇢ | A | FrmFieldType::get_add_option_string() added | |
| ⇢ | A | FrmFieldType::show_single_option() added | |
| ⇢ | A | FrmFieldType::extra_field_choices_class() added | |
| ⇢ | A | FrmFieldType::field_choices_heading_attrs() added | |
| A | ↘ | B | FrmField::is_field_type() got worse |