|Administrators, please do not delete this category!|
这是维护性分类，有时包含需要时刻注意的页面。 If the category is empty then this is a good thing.
|Administrators, please do not delete this category!
This category contains extensions that have been marked as having an unknown status. If an extension is marked in this way, then the extension's author has not provided the information and it was not obvious enough from the page contents for someone unfamiliar with the extension to fill in the details.
This category currently contains no pages or media.