camera raw

apparently my problem will not be solved, otherwise it doesn't seem that difficult to me, I want to work with my old ibook (which contains os 10.10.5) with a photoshop version with which I have camera raw, now it has photoshop 2017.1.5 on it; I have a creative cloud subscription and therefore this version is automatically updated, the problem is no camera raw has been updated with it. I work at home and at school with imacs with the very latest adobe software, but the ibook is handy because it has a card reader so we can immediately see the result in the studio without having to go to the computer room. so the question again "where can I find a photoshop version with a camera raw that works on my ibook"; it's not important that the latest camera and lens profiles are there and I always work with them without an internet connection; thank you