Method warnIfPreRelease

server/src/main/java/org/elasticsearch/node/Node.java:928–934

(final Version version, final boolean isSnapshot, final Logger logger)

    }

    private static void warnIfPreRelease(final Version version, final boolean isSnapshot, final Logger logger) {
        if (!version.isRelease() || isSnapshot) {
            logger.warn(
                "version [{}] is a pre-release version of CrateDB and is not suitable for production",
                Version.displayVersion(version, isSnapshot));
        }
    }

    protected TransportService newTransportService(Settings settings,
                                                   Transport transport,