[keycloak-user] Is it mandatory for adapter version to be same as the keycloak version?

Hi, there, Suppose we have a wildfly app server with adapter 1.11 version, will  talk to keyclok 1.7.0 final ,  is it possible ? In other words, do we need to upgrade the adapter to  1.7.0 ? If this case , our wildfly is 8.0, it is safe to use the latest 1.7.0 adapter? TIA. Mai