Hi Marcel!
May I say, you’re a bit late to the party after nearly 10 years, but welcome nonetheless 
Glad to hear, that your server made it for so long 
You should be able to migrate your old data, I’d recommend the following steps:
- Backup-up your data
- Start SCM-Manager 1.60 once using your data directory to migrate it to the latest 1.x format
- Afterwards, start the latest SCM-Manager release using this data directory
- Here you should get a migration wizzard to adapt your old data to new folder structures (be aware of the hint, if you have lots of repositories)
- The start-up afterwards will migrate the data itself
If you encouter any obstacles, feel free to contact us.
Regards
René 