当打算发布某个库的一个新版本并且人们在使用旧版本会导致错误时，重构脚本就显得很有用了。
This is extremely useful when you are about to distribute a new version of a library that can cause errors for people using the older version.
所有这些库都很有用，但没有一个用破坏底层xml有效性的方法阻止应用程序修改用XML表示的对象。
All of these libraries are useful, but none of them prevent an application from modifying an XML-representation object in ways that break the validity of the underlying XML.
Omar Al Zabir发表了一个很有用的文章，描述如何周期性地清除匿名用户数据以免占据你的数据库。
Omar al Zabir published this handy article that describes how to "clean up" this anonymous user data periodically to avoid storing it forever in your database.
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