Cubase SX3

Hi all,
I want to start making music again. I have a copy of Cubase SX3 complete with disk and dongal that I bought about 15 years ago and used for many years. I wonder if it is possible to put this on my much newer iMac, which doesn’t have a CDRom drive.
I wonder if it is worth selling?
If there are any ways to pay to upgrade?

Also, how different is the current version of Cubase now? Will it be like learning a whole new program?

I doubt it would work properly on a new iMac. Though I have no proof of that.

It works fine on Windows 10, since I still run a copy of it.

You can download SX3 from your account, so you don’t need a cd-rom.

You should be able to upgrade to 10.5 from the shop. Which should give you 11 for free, given it is imminent.

The latest, looks quite different, but how I use it isn’t much different to how I used SX3. So it shouldn’t take more than a day or two to get up to speed and then a few weeks to learn the new stuff as and when you need it.

Thank you, that’s extremely helpful and potentially very good news too!

Sorry to sound thick, but I can’t work out how to download SX3.