Updating old features?

Just a quick question, hoping you could advise

We've been using an older version of the library for quite a while and now are looking at the latest release for upcoming projects

Initial problem seems to be with our old generated features as the proto files (_pb2.py) are looking for an import that doesn't seem present in the new library although I may just have missed it, e.g.

import SiLAFramework_pb2 as SiLAFramework__pb2 / from sila2.framework import SiLAFramework_pb2 as SiLAFramework__pb2

Is it possible to repurpose these existing features for use with the newer library or are we best off regenerating from original .xml using the built in code generator?

Many thanks, Alex