There's currently a check in `TransportService.HandshakeResponse.isIncompatibleBuild` to stop ES with the same Version but different build hashes from joining a cluster. This needs to be relaxed for cloud deployments where Version is not applicable
server/src/main/java/org/elasticsearch/transport/TransportService.java
}
    void setTracerLogInclude(List<String> tracerLogInclude) {
        this.tracerLogInclude = tracerLogInclude.toArray(Strings.EMPTY_ARRAY);
    }
    void setTracerLogExclude(List<String> tracerLogExclude) {
        this.tracerLogExclude = tracerLogExclude.toArray(Strings.EMPTY_ARRAY);
    }
    @Override
    protected void doStart() {
        transport.setMessageListener(this);
        connectionManager.addListener(this);
        transport.start();
        if (transport.boundAddress() != null && logger.isInfoEnabled()) {
            logger.info("{}", transport.boundAddress());
            for (Map.Entry<String, BoundTransportAddress> entry : transport.profileBoundAddresses().entrySet()) {
                logger.info("profile [{}]: {}", entry.getKey(), entry.getValue());
            }
        }
        localNode = localNodeFactory.apply(transport.boundAddress());
        if (remoteClusterClient) {
            
            remoteClusterService.initializeRemoteClusters();
        }
    }
    @Override
    protected void doStop() {
        try {
            IOUtils.close(connectionManager, remoteClusterService, transport::stop, pendingDirectHandlers::stop);
        } catch (IOException e) {
            throw new UncheckedIOException(e);