public static Integer getCurrentVersion(Properties properties) throws IOException {
        if (CURRENT_VERSION != null) {
            return CURRENT_VERSION;
        }

        if (properties == null) {
            properties = getApplicationProperties();
        }
        String verStr = properties.getProperty(CONFIG_ITEM_ENCRYPT_VERSION);
        if (StringUtils.isNotEmpty(verStr)) {
            CURRENT_VERSION = Integer.valueOf(verStr);
        } else {
            CURRENT_VERSION = DEFAULT_VERSION;
        }
        log.debug("Crypto CURRENT_VERSION = {}", CURRENT_VERSION);
        return CURRENT_VERSION;
    }
Get the current aes key version
inlong-manager/manager-common/src/main/java/org/apache/inlong/manager/common/util/AESUtils.java