Make the API module text filter have a setting for core compatibility

There is a text filter in the API module that turns function names, class names, etc. into links. You can do this within a site that is running the API module and indexing code, or via the "API reference branches", you can download the API information from api.drupal.org or another site, and make links to that site.

It is currently set up to use the default core compatibility, so for instance if you have that set to 7.x, it would always assume it is making links to Drupal 7.x on api.drupal.org.

It would be better if you could set up different filters for different core compatibilities, so by choosing the text format, you could select whether you wanted the links to be Drupal 7.x or 8.x or whatever.