This article was written in November 2004, when LGPLv2.1 was the most current version of the license. Since then, LGPLv3 has been published. The main points of this article remain true about LGPLv3, but some of the details, such as section numbers, have changed. It has always been the FSF's position that dynamically linking applications to libraries creates a single work derived from both the libr