The Coq development team is pleased to announce the release of Coq version 7.3. This release offers the following novelties or improvements: - New option -dump-glob to coqtop to dump globalizations (to be used by the new documentation tool coqdoc; see http://www.lri.fr/~filliatr/coqdoc). - Elimination to Set/Type from empty propositions and to Type from "singleton" propositions now allowed (as a consequence eqT_rec and False_rec are now automatically available). - Tactics: - New "Rename x into y" for renaming hypotheses. - New "Pose x:=u" and "Pose u" to add definitions to local context. - Tactic Definition's without arguments now allowed in Coq states. - Inversion has been improved and Intuition simplified but not in a fully compatible way. - Record's now accept anonymous fields "_" (no projection is built then) - Haskell extraction now operational. - Extensions of [ZArith]: Zcomplements.v, Zpower.v and Zlogarithms.v have been moved from contrib/omega to ZArith. They now include the Zsgn function, more induction principles (Wf_Z.v and tail of Zcomplements.v) and one more general Euclid theorem. We would also like to thank our users for their new contributions (all compatible with Coq V7.3): - CongruenceClosure: Congruence Closure Decision Procedure (Pierre Corbineau, ENS Cachan) - MapleMode: A Maple Mode for Coq (David Delahaye, Micaela Mayero, Chalmers University) - Presburger: A formalization of Presburger's algorithm (Laurent Thery, INRIA Sophia Antipolis) - ZChinese: A proof of the Chinese Lemma (based on ZArith) (Pierre Letouzey, LRI Orsay) Most known bugs of version 7.2 are fixed (for the current status of reported bugs, see http://coq.inria.fr/bin/coq-bugs). Pcoq user interface (http://www-sop.inria.fr/lemme/pcoq) is not ported to V7.3 yet. Coq V7.3 is available in several formats from http://coq.inria.fr and ftp://ftp.inria.fr/INRIA/coq/V7.3. We currently provide the following versions package for sources rpm package for sources rpm packages for linux binary package for Sun-Solaris binary version for Windows binary version for MacOS X (Darwin) The documentation is available in postscript, pdf and html format. Notice that you can browse the standard library at http://coq.inria.fr/library-eng.html (this pages have been generated by coqdoc). Please refer to the accompanying document CHANGES or the location ftp://ftp.inria.fr/INRIA/coq/V7.3/doc/Changes.html for a full list of changes including sources of incompatibilities. Users are kindly invited to report bugs to coq-bugs@pauillac.inria.fr and to mail Coq-Club@pauillac.inria.fr for general questions or remarks. Note that you can now choose your personal options at http://pauillac.inria.fr/mailman/listinfo/coq-club and consult the mails archive at http://pauillac.inria.fr/pipermail/coq-club. The Coq development team