Hi all .... firstly I am not proficient in geek speak so please forgive me. I am in need of replacing my 2010 iMac 27in.. it has served me well but now has the black screen of death. was looking at recondition 2013 with SSD as was told this preferable as there are less moving parts and I really am on limited funds... but am thinking if it is at all possible to run my old Adobe CS6 suite on a new iMac I could possibly look to purchasing on payment as it seems to be crazy not to for the extra speed and hopefully longevity. My question is can the OS be backtracked to High Sierra which was the last OS used on my iMac and what I am using in my macbook which the CS6 is compatible with .. I am not sure how much further CS6 can go and I presume most new machines will come with Catalina? I really don't want to upgrade to new Adobe software as it is set up to pay as you go and that doesn't work for me. I also am unsure if old CS6 files would open using newer Adobe software and I need to be able to access them as I have return clients. I use my machine for graphic design, illustrator indesign and Photoshop and other online activities as well as reference for my artwork. I am looking at something like 27in iMac 3.3GHz 6-core i5/8GB/ 512GB SSD with Retina 5K Display. All of which would be a step up from my old girl ... which I love ... any help would be great as I am just a devotee and not really good at the tech stuff.