They are not updated yet, some have to have major changes to be compatible with v4, I do not have early access to the beta, I get access to the beta the same as you do.
You can see development progress in this thread in the customer only forums on ysmods: https://forums.ysmods.com/index.php/topic/84-ysmods-plugin-updates-for-yetishare-v40/
The only place to download the YSMods v4 plugins will be www.ysmods.com if you have a valid subscription.
