These changes requires re-compiling kernel, we will not discuss this in this article.
这些更改要求重新编译内核，我们在本文中不会对此加以讨论。
2
However, once the service response time or cost change, modifying, re-compiling the source code, and re-deploying the application can not be avoided.
不过，服务响应时间或成本改变后，必须修改、重新编译源代码，并重新部署应用程序。
3
Re-compiling against 2.9 will also highlight any calls to deprecated methods allowing developers to update their applications in preparation for version 3.