Recently Google announced that new reCAPTCHA keys will no longer be compatible with the old API version (v1.0) that Antispam module integrates with.
If you already have reCAPTCHA keys, these should continue to work on your site. However, if you are a new reCAPTCHA user, the keys will likely not work in Antispam module.
Therefore, in order to not confuse new X-Cart users and hide the module from them we decided to mark the module as "deprecated" and release new
Google reCAPTCHA module as a replacement.