Correct; the routing configuration is significantly different in v7.x.x. You might want to inspect the new wiki for both OSPF specifically [1] and the general changes to the
:routing configuration tree [2] before continuing.
In the case of
:routing ospf network, what you're probably looking for is under
:routing ospf interface-template network= now. Note also that, if you prefer, you are no longer required to associate interfaces with areas via a matching prefix and can instead do it by naming the interfaces directly.
[1]
https://help.mikrotik.com/docs/pages/vi ... eId=328218
[2]
https://help.mikrotik.com/docs/display/ ... g+Examples