It was back during the winter I believe. They basically made it highly impractical and nearly impossible to use sells PDFs.
Here's a brief synopsis: http://lsatblog.blogspot.com/2015/03/lsac-bans-lsat-preptest-pdf-sales.html
@Pacifico I was thinking about that, but that $500+ is out of my range atm. I just quit my job to study full time for the lsat ; ( last day is sept 1st, and I need to save the cash.