Hi, are there any upgrade guides for migrating from Pact V3 to V4. We are looking at adopting V4 to use the synchronous message functionality but then have concerns about how it would affect current HTTP contracts that are using V3. Is there a suggestion on how we could migrate in stages over to V4? We have a lot of contracts so big bang isn’t really an option

V4 is backwardly compatible with V3. I would start on your provider side, upgrade those so they can verify either V3 or V4. Then set the consumer tests to use V4. You shouldn't have to make many changes if you are using the standard DSLs.

Thanks!