upgrade-to-4.3.x.md

Upgrading to 4.3.x

Pact specification version defaults to V4

If you are using the old Java DSL with JUnit 5, you need to specify V3 on the PactTestFor annotation, otherwise you will get a Pact merge conflict error.

For example,

@ExtendWith(PactConsumerTestExt.class)
@PactTestFor(providerName = "ArticlesProvider", port = "1234", pactVersion = PactSpecVersion.V3) // set V3 here
public class ArticlesTest {
  @Pact(consumer = "ArticlesConsumer")
  public RequestResponsePact articles(PactDslWithProvider builder) { // This is using the old DSL
    
  }
}

Apache HTTP client has been upgraded to 5.1

Target request filters will now be called with either org.apache.hc.core5.http.HttpRequest or org.apache.hc.core5.http.ClassicHttpRequest. JUnit 5 tests will need to have this interface injected.