由于zb4的版权限制,虽然期间有很多人参与扩展（基于zb4改写）编写,正式发布的代码还是由zero一个人编写完成。



所以在升级以及补丁发布方面不够完善，并不能把所有基于zb4衍生的代码进行完善管理。



XE 抛开这些锁闭型政策的弊端，选择了大家都可以参与开发并可以不断进行升级，以及完善补丁发布措施的开源开发方案。



有了多数人的参与使程序本身具有快速的升级方案，无需版权标明的开源政策使开发人员以及使用者能够把更多的精力转向网站的管理以及维护。-Due to copyright restrictions of zb4, although there are a lot of people involved in the expansion period (based on zb4 rewriting) preparation, officially released the code is completed by the zero a person to write.

So in the upgrade and patch is not perfect, and not all zb4 derived code based on perfect management.

Xe aside the drawbacks of these type locking policy,　everybody can participate in the development and can constantly upgrade, and improve the patch release measures of open source development scheme.

There are many people involved in making the program itself has a fast upgrade program, without copyright marked open source policy enables developers and users can put more energy to the site management and maintenance.