“Ken was honest, he said it was a business decision by the club and he thinks it’s best that I look elsewhere,” he told BBC Wales Sport.
“It doesn’t make it any less disappointing for me. I’ve been at the club for five years and the first three years I didn’t miss a beat. The disappointing thing is that I feel that the operation I have had now is what I’ve needed all along where I’ve got the right support in my ankle to go forward.
The defender continued, “I was hoping I’d be offered something and there could be a different way of structuring my deal.
“I wanted the chance to prove myself again and I’m going to have to do that elsewhere but that’s life and it’s disappointing.”
Despite not playing many games in the last two campaigns, Turner believes he will be signed by a new club and prove his fitness.
“I’m confident I’ll find another club. As far as I’m concerned, if my ankles are okay. I will be playing next season, make no mistake about it,” Turner added.
“Whether at Cardiff or a new club, I have to prove myself in terms of my fitness but in terms of everything else, I still offer what I have done before.”