Well it depends on what really happened. What made me think he wasn't really released is that Combate America (or what the org's name is) made an offer and then publicly revoked the offer. There aren't many reasons to do that, unless the UFC let them know he was still under contract.
Dana, who runs the company, says you are released. Yes you have to wait for the paperwork for it to be official, but it brings up some issues. Dana is pissed at him and makes him pay by releasing him, but not sending the paperwork. That keeps him from finding employment and making money. Dana is also not offering him any new fights to make money. Dana then uses the released/not released to lower his contract pay (don't know if this happened or not) or other terms.
There are plenty of issues that would be interesting to know the full details of what happened.
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