How to update the wurfl resource of Zend_Http_UserAgent

i'm using Wurfl-adapter of Zend_Http_UserAgent as described here: http://framework.zend.com/manual/en/zend.http.user-agent开发者_如何学Python.html

Do I need to update the wurfl xml-file manually from time to time or does Wurfl update itself automatically?

Thanks!

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Yes you need to update it manually from time to time.