-Depends: libmetaproxy2 (= ${Source-Version}), libyazpp4-dev (>= 1.1.6), libxslt1-dev, libboost-dev, libgnutls-dev
-Description: Metaproxy Z39.50/SRU router (main executable)
+Depends: libmetaproxy4 (= ${Source-Version}),
+ libyazpp4-dev (>= 1.2.0),
+ libxslt1-dev,
+ libboost-dev,
+ libboost-thread-dev,
+ libgnutls-dev
+Conflicts: libmetaproxy2-dev, libmetaproxy3-dev
+Description: Z39.50/SRU router (development)