Compatibility/Migration mac Cubase 5.5 to 8.0

Compatibility Migration mac Cubase 5.5 to 8.0

I have cubase 5.5 files and a lot of them that I need to continue recording with. If I buy 8.0 for mac will I be able to just open the files and use them with new features or will I have to convert them somehow or export first?

Thanks

Danny