WARNING: CF7 v4.8 may break many extension plugins

The new CF7 v4.8 release changes the way form tags are passed to validation functions. Previously,

add_filter('wpcf7_validate_text', 'my_custom_text_validation', 10,2);
function my_custom_text_validation($result, $tag){
  //tag was passed as an array in pre v4.8.
  $tag = new WPCF7_FormTag( $tag );
  $field_name = $tag->name;
  ...
  return $result;
}

in the new version,

add_filter('wpcf7_validate_text', 'my_custom_text_validation', 10,2);
function my_custom_text_validation($result, $tag){
  //tag is now passed as an object in v4.8.
  $field_name = $tag->name;
  ...
  return $result;
}

I don’t understand why the plugin author simply didn’t create a new function. This has broken one of my plugins already! A waste of debugging time if you ask me.