To be able to migrate from an Helium version older than 11.5, you will need to first migrate the data to Helium 11.5.
So, if you for example are using Helium 9, you will need to do the following:
1) Create a backup from your current Helium version (e.g. 9)
2) Download and install Helium 11.5 (can be installed parallell to Helium 7, 8, 9, 10)
3) Import the backup into Helium 11.5
4) Install Helium 12
Helium 11.5 can be downloaded from:
You should now be able to migrate data from Helium 11.5 to Helium 12.
If you are a Premium or Network user, using a MySql or SqlServer database), and do not have a license of Helium 11.5, please contact us.
We will then assist you with the migration to Helium 12.