Release Notes: GNU Dico 2.0 is a flexible dictionary server with a set of accompanying utilities. It supports a wide variety of dictionary database formats, ranging from the traditional `dict.org' databases up to Wikipedia format. Support for arbitrary new formats can be easily added using loadable modules. The dico library provides an API for writing new modules in C, Guile or Python. The package also includes a console client program for querying remote dictionary servers and a Web interface client.