Photoshop CS3 - new serial numbers
I am currently running CS3 on an old macbook pro, OS 10.8.5. I would like to also run it on my new macbook pro which runs OS 10.13.6. I have been supplied with a new serial number to activate photoshop on the new mac, but my question is, if I do, what will happen to my old version? Will it stop working? I cannot update the OS 10.8.5 as I also run other software on this machine and I know the new serial number version will not work on this OS. Has anyone else faced this problem - long shot I know!
