private void publishDelta(MetadataDelta delta, MetadataImage newImage) {
        // Use newImage configs to check if topic is diskless, as the metadata cache
        // may not have the config yet when processing deltas for newly created topics
        Function<String, Boolean> isDisklessFromImage = topicName -> {
            ConfigResource resource = new ConfigResource(ConfigResource.Type.TOPIC, topicName);
            Properties props = newImage.configs().configProperties(resource);
            return Boolean.parseBoolean(props.getProperty(TopicConfig.DISKLESS_ENABLE_CONFIG, "false"));
        };
        ControllerMetricsChanges changes = new ControllerMetricsChanges(isDisklessFromImage);
        if (delta.clusterDelta() != null) {
            for (Entry<Integer, Optional<BrokerRegistration>> entry :
                    delta.clusterDelta().changedBrokers().entrySet()) {
                changes.handleBrokerChange(
                    prevImage.cluster().brokers().get(entry.getKey()),
                    entry.getValue().orElse(null),
                    metrics
                );
            }
        }
        if (delta.topicsDelta() != null) {
            for (Uuid topicId : delta.topicsDelta().deletedTopicIds()) {
                TopicImage prevTopic = prevImage.topics().topicsById().get(topicId);
                if (prevTopic == null) {
                    throw new RuntimeException("Unable to find deleted topic id " + topicId +
                            " in previous topics image.");
                }
                // For deleted topics, check isDiskless from prevImage since config is already removed from newImage
                ConfigResource resource = new ConfigResource(ConfigResource.Type.TOPIC, prevTopic.name());
                Properties props = prevImage.configs().configProperties(resource);
                boolean isDiskless = Boolean.parseBoolean(props.getProperty(TopicConfig.DISKLESS_ENABLE_CONFIG, "false"));
                changes.handleDeletedTopic(prevTopic, isDiskless);
            }
            for (Entry<Uuid, TopicDelta> entry : delta.topicsDelta().changedTopics().entrySet()) {
                changes.handleTopicChange(prevImage.topics().getTopic(entry.getKey()), entry.getValue());
            }
        }
        changes.apply(metrics);