Trying to figure out if I have a problem or if this just the way that it is intended to work. First , to be clear I am NOT asking how to add a user programmaticly. I have developed a custom registration module using DNN 5.2.2, during my testing I would create users then delete them using the admin. In the Users table the IsDeleted flag would be marked true when I deleted a user. Everything worked grate, so time to move to production. but first I got the smart idea to upgraded my production environment from 5.2.2 to 5.6.1, installed the new module and did a little more testing, now things were not so greate. I have found that the IsDeleted flag in the Uses table is not being set to true when I delete a user, instead the IsDeleted flag  in the UserPortals table is being mark true. So here is the question, in DNN 5.6.1 is the above describe behavior correct for DNN 5.6.1 or did my upgrade brake the delete functionality. Need to figure out if I need to change my code to handle duplicate usernames for deleted users or if I need to fix the site. In my dev 5.2.2 environment my module can reactivate deleted username, but in my prod 5.6.1 environment I can never reuse the same username. Thanks in advance.

Thanks Limno for the reply, but I am not sure how upgrading will answer my question. Plus I cannot upgrade to a beta in my production environment. Just wanted to know what the default delete user behavior is in version 5.6.1 compared to 5.2.2. I guess I can install the source  version of 5.6.1 in dev and debug the code and see what it does, was hoping to save time and see is anyone know off the top of their head.

William, that is exactly what I was looking for here, thanks. It's just one of those "who moved my cheese" type movements. Needed to update one line in the code and all is resolved. A lot better than trying to fix a broken upgrade in a production environment. I have no problem with the "soft-delete", it actually comes in handy for what I am doing. I did do a little looking around but could not find a proper list of changes between version, do you know if there is one? Thanks again.