Yes I fully understand the support will not be as it was, however the more fusionInvoice users that you can get to become part of this group, then the better it will become for support. I dont think that there is any issue to make a new version so quickly - the issue will be to get as many current fusion users to adopt the “InvoicePlan 2” release (albeit formally FI) and that means some sort of write up of what updating of older FI versions needs to be undertaken in order to have a working version IP2 with the original data base. Which is what I am doing having upgraded our servers to cater for TLS 1.2 etc security.
Anyway, as said - looking forward to how this all pans out.
With kindest regards
ps… good wishes for your bachelor thesis, hope all goes well.