syslog-ng 服务启动的时候，出现警告

wArwIck

Starting syslog-ng: Configuration file has no version number, assuming syslog-ng 2.1 format. Please add @version: maj.min to the beginning of the file;
WARNING: global: the default value of chain_hostnames is changing to 'no' in version 3.0, please update your configuration accordingly;
WARNING: template: the default value for template-escape is changing to 'no' in version 3.0, please update your configuration file accordingly;
WARNING: input: sources do not remove new-line characters from messages by default in version 3.0, please add 'no-multi-line' flag to your configuration if you want to retain this functionality;
WARNING: file source: default value of follow_freq in file sources is changing in 3.0 to '1' for all files except /proc/kmsg;

syslog-ng 版本已经是3.0以上了，

@version: 3.0

在syslog-ng.conf文件里也已经有了，但怎么还会有第一条的提示

现在syslog-ng无法接收其它主机的日志信息，是不是和下面4个WARNING有关？需要如何设置？
日志服务器是64位的RHEL5，同样的syslog-ng.conf文件在32位RHEL4下设置没有问题
哪位达人给些提示，谢谢