Hello Everyone,
We have been using OpenERP 7 from almost two years now and we wanted to customize some modules to meet our needs
Some freelancers mentioned that OpenERP 7 may cause the modifications to not be completed due to the possibility of not supporting the codes
They mentioned migrating to a newer version but they said all previously modified module will need to be done again due to new API
I want
to know if our customized modules would work in newer versions and if
the database would be compatible with a newer version
I cannot comment on your answer so I will have to make a new answer
Then it would be a better choice to migrate to Odoo 10 before we continue with our customization on OpenERP 7
Would I need to re-do all of my modifications and customization from scratch or I would need to only change few lines?
I don't know your modules, so how should I give you an answer ;-) But the way from 7.0 to 10.0 is quite far. However, I would recommend to migrate to Odoo 10.
What about the data inside the database, would I need to start from scratch or the data can be migrated?
I am new to OpenERP / Odoo so I am not sure what to do
If you can start from scratch, do it! You can migrate your data as I've written, but most probably it is tedious and cumbersome.